Updated 2020-03-25
Hyperledger Besu API methods
Attention
- All JSON-RPC HTTP examples use the default host and port endpoint
http://127.0.0.1:8545. If using the –rpc-http-host or –rpc-http-port options, update the endpoint. - Except for the examples made on the Ropsten network, the example requests are made against private networks. Depending on network configuration and activity, your example results might be different.
Click the button to import our collection of API examples to Postman.
or download the raw JSON collection file.
Admin methods
Note
The ADMIN API methods are not enabled by default for JSON-RPC. To enable the ADMIN API
methods, use the --rpc-http-api or
--rpc-ws-api options.
admin_addPeer
Adds a static node.
Caution
If connections are timing out, ensure the node ID in the enode URL is correct.
Parameters
string : Enode URL of peer to add
Returns
result : boolean - true if peer added or false if peer already a
static node.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"admin_addPeer","params":["enode://f59c0ab603377b6ec88b89d5bb41b98fc385030ab1e4b03752db6f7dab364559d[email protected]127.0.0.1:30304"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_addPeer","params":["enode://f59c0ab603377b6ec88b89d5bb41b98fc385030ab1e4b03752db6f7dab364559d[email protected]127.0.0.1:30304"],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": true
}
admin_changeLogLevel
Changes the log level without restarting Besu. You can change the log level for all logs, or you can change the log level for specific packages or classes.
You can specify only one log level per RPC call.
Parameters
level - Log level
log_filter: Array - Packages or classes to change the log level for. Optional.
Returns
result : Success if the log level has changed; otherwise error.
This example changes the debug level for specified classes to DEBUG.
Example
curl -X POST --data '{"jsonrpc":"2.0", "method":"admin_changeLogLevel", "params":["DEBUG", ["tech.pegasys.pantheon.ethereum.eth.manager","tech.pegasys.pantheon.ethereum.p2p.rlpx.connections.netty.ApiHandler"]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0", "method":"admin_changeLogLevel", "params":["DEBUG", ["tech.pegasys.pantheon.ethereum.eth.manager","tech.pegasys.pantheon.ethereum.p2p.rlpx.connections.netty.ApiHandler"]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
This example changes the debug level of all logs to WARN.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"admin_changeLogLevel","params":["WARN"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_changeLogLevel","params":["WARN"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
admin_generateLogBloomCache
Tip
Manually executing admin_generateLogBloomCache is not required unless the
--auto-log-bloom-caching-enabled command
line option was set to false.
Generates cached log bloom indexes for blocks. APIs such as eth_getLogs and
eth_getFilterLogs use the cache for improved performance.
Note
Each index file contains 100000 blocks. The last fragment of blocks less than 100000 are not indexed.
Parameters
integer - Block to start generating indexes.
integer - Block to stop generating indexes.
Returns
result : object - Log bloom index details:
quantity:startBlock- Starting block for the last requested cache generation.quantity:endBlock- Ending block for the last requested cache generation.quantity:currentBlock- The most recent block added to the cache.boolean:indexing-trueif indexing is in progress.boolean:trueindicates acceptance of the request from this call to generate the cache.
Example
curl -X POST --data '{jsonrpc":"2.0","method":"admin_generateLogBloomCache", "params":["0x0", "0x10000"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_generateLogBloomCache", "params":["0x0", "0x10000"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"startBlock": "0x0",
"endBlock": "0x10000",
"currentBlock": "0x0",
"indexing": true,
"requestAccepted": true
}
}
admin_nodeInfo
Returns networking information about the node. The information includes general information about
the node and specific information from each running Ethereum sub-protocol (for example, eth).
Parameters
None
Returns
result : Node object
Properties of the node object are:
enode- Enode URL for the node.listenAddr- Host and port for the node.name- Client name.id- Node public key.ports- Peer discovery and listening ports.protocols- List of objects containing information for each Ethereum sub-protocol.
Note
If the node is running locally, the host of the enode and listenAddr display as [::] in
the result. When advertising externally, the external address displayed for the enode and
listenAddr is defined by --nat-method.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"admin_nodeInfo","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_nodeInfo","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"enode": "enode://87ec35d558352cc55cd1bf6a472557797f91287b78fe5e86760219124563450ad[email protected][::]:30303",
"listenAddr": "[::]:30303",
"name": "besu/v1.0.1-dev-0d2294a5/osx-x86_64/oracle-java-1.8",
"id": "87ec35d558352cc55cd1bf6a472557797f91287b78fe5e86760219124563450ad1bb807e4cc61e86c574189a851733227155551a14b9d0e1f62c5e11332a18a3",
"ports": {
"discovery": 30303,
"listener": 30303
},
"protocols": {
"eth": {
"config": {
"chainId": 2018,
"homesteadBlock": 0,
"daoForkBlock": 0,
"daoForkSupport": true,
"eip150Block": 0,
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"constantinopleFixBlock": 0,
"ethash": {
"fixeddifficulty": 100
}
},
"difficulty": 78536,
"genesis": "0x43ee12d45470e57c86a0dfe008a5b847af9e372d05e8ba8f01434526eb2bea0f",
"head": "0xc6677651f16d07ae59cab3a5e1f0b814ed2ec27c00a93297b2aa2e29707844d9",
"network": 2018
}
}
}
}
admin_peers
Returns networking information about connected remote nodes.
Parameters
None
Returns
result : array of objects - Object returned for each remote node.
Properties of the remote node object are:
version- P2P protocol version.name- Client name.caps- List of Ethereum sub-protocol capabilities.network- Local and remote addresses established at time of bonding with the peer. The remote address might not match the hex value forport. The remote address depends on which node initiated the connection.port- Port on the remote node on which P2P peer discovery is listening.id- Node public key. Excluding the0xprefix, the node public key is the ID in the enode URLenode://<id ex 0x>@<host>:<port>.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"admin_peers","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_peers","params":[],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : [
{
"version": "0x5",
"name": "Parity-Ethereum/v2.3.0-nightly-1c2e121-20181116/x86_64-linux-gnu/rustc1.30.0",
"caps": [
"eth/62",
"eth/63",
"par/1",
"par/2",
"par/3",
"pip/1"
],
"network": {
"localAddress": "192.168.1.229:50115",
"remoteAddress": "168.61.153.255:40303"
},
"port": "0x9d6f",
"id": "0xea26ccaf0867771ba1fec32b3589c0169910cb4917017dba940efbef1d2515ce864f93a9abc846696ebad40c81de7c74d7b2b46794a71de8f95a0d019f494ff3"
}
]
}
admin_removePeer
Removes a static node.
Parameters
string : Enode URL of peer to remove.
Returns
result : boolean - true if peer removed or false if peer not a
static node).
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"admin_removePeer","params":["enode://f59c0ab603377b6ec88b89d5bb41b98fc385030ab1e4b03752db6f7dab364559d[email protected]127.0.0.1:30304"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"admin_removePeer","params":["enode://f59c0ab603377b6ec88b89d5bb41b98fc385030ab1e4b03752db6f7dab364559d[email protected]127.0.0.1:30304"],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": true
}
Web3 methods
web3_clientVersion
Returns the current client version.
Parameters
None
Returns
result : string - Current client version.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "besu/<version>"
}
web3_sha3
Returns a SHA3 hash of the specified data. The result value is a Keccak-256 hash, not the standardized SHA3-256.
Parameters
DATA - Data to convert to a SHA3 hash.
Returns
result (DATA) - SHA3 result of the input data.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_sha3","params":["0x68656c6c6f20776f726c00"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"web3_sha3","params":["0x68656c6c6f20776f726c00"],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x5e39a0a66544c0668bde22d61c47a8710000ece931f13b84d3b2feb44ec96d3f"
}
Net methods
net_version
Returns the current chain ID.
Parameters
None
Returns
result : string - Current chain ID.
| Chain ID | Chain | Network | Description |
|---|---|---|---|
1 |
ETH | MainNet | Main Ethereum network |
3 |
ETH | Ropsten | PoW test network |
4 |
ETH | Rinkeby | PoA test network using Clique |
5 |
ETH | Goerli | PoA test network using Clique |
6 |
ETC | Kotti | PoA test network using Clique |
61 |
ETC | Classic | Main Ethereum Classic network |
63 |
ETC | Mordor | PoW test network |
2018 |
ETH | Dev | PoW development network |
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"net_version","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 51,
"result" : "1"
}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "3"
}
net_listening
Whether the client is actively listening for network connections.
Parameters
None
Returns
result (BOOLEAN) - true if the client is actively listening for network connections;
otherwise false.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"net_listening","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"net_listening","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : true
}
net_peerCount
Returns the number of peers currently connected to the client.
Parameters
None
Returns
result : integer - Number of connected peers in hexadecimal.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"net_peerCount","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"net_peerCount","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x5"
}
net_enode
Returns the enode URL.
Parameters
None
Returns
result : string - Enode URL for the node.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"net_enode","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"net_enode","params":[],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : "enode://6a63160d0ccef5e4986d270937c6c8d60a9a4d3b25471cda960900d037c61988e[email protected]127.0.0.1:30303"
}
net_services
Returns enabled services (for example, jsonrpc) and the host and port for each service.
Parameters
None
Returns
result : objects - Enabled services.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"net_services","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"net_services","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"jsonrpc": {
"host": "127.0.0.1",
"port": "8545"
},
"p2p" : {
"host" : "127.0.0.1",
"port" : "30303"
},
"metrics" : {
"host": "127.0.0.1",
"port": "9545"
}
}
}
Eth methods
Note
Methods with an equivalent GraphQL query include a GraphQL request and result in the method example. The parameter and result descriptions apply to the JSON-RPC requests. The GraphQL specification is defined in the schema.
eth_syncing
Returns an object with data about the synchronization status, or false if not synchronizing.
Parameters
None
Returns
result : Object|Boolean - Object with synchronization status data or false, when not
synchronizing:
startingBlock: quantity - Index of the highest block on the blockchain when the network synchronization starts.currentBlock: quantity - Index of the latest block (also known as the best block) for the current node. This is the same index that eth_blockNumber returns.highestBlock: quantity - Index of the highest known block in the peer network (that is, the highest block so far discovered among peer nodes). This is the same value ascurrentBlockif the current node has no peers.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":51}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":51}
{
"jsonrpc" : "2.0",
"id" : 51,
"result" : {
"startingBlock" : "0x5a0",
"currentBlock" : "0xad9",
"highestBlock" : "0xad9"
}
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{syncing{startingBlock currentBlock highestBlock}}"}' http://localhost:8547/graphql
{
syncing {
startingBlock
currentBlock
highestBlock
}
}
{
"data" : {
"syncing" : {
"startingBlock" : 1592,
"currentBlock" : 31988,
"highestBlock" : 4389714
}
}
}
eth_chainId
Returns the chain ID.
Parameters
None
Returns
result : quantity - Chain ID, in hexadecimal.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":51}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":51}
{
"jsonrpc" : "2.0",
"id" : 51,
"result" : "0x7e2"
}
eth_protocolVersion
Returns current Ethereum protocol version.
Parameters
None
Returns
result : quantity - Ethereum protocol version.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_protocolVersion","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_protocolVersion","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x3f"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{protocolVersion}"}' http://localhost:8547/graphql
{
protocolVersion
}
{
"data" : {
"protocolVersion" : 63
}
}
eth_coinbase
Returns the client coinbase address. The coinbase address is the account to pay mining rewards to.
To set a coinbase address, start Besu with the --miner-coinbase option set to a valid Ethereum
account address. You can get the Ethereum account address from a client such as MetaMask or
Etherscan. For example:
Example
besu --miner-coinbase="0xfe3b557e8fb62b89f4916b721be55ceb828dbd73" --rpc-http-enabled
Parameters
None
Returns
result : data - Coinbase address.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73"
}
eth_mining
Whether the client is actively mining new blocks. Besu pauses mining while the client synchronizes with the network regardless of command settings or methods called.
Parameters
None
Returns
result (BOOLEAN) - true if the client is actively mining new blocks; otherwise false.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_mining","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_mining","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : true
}
eth_hashrate
Returns the number of hashes per second with which the node is mining.
Not supported for GPU mining.
Parameters
None
Returns
result : quantity - Number of hashes per second.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_hashrate","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_hashrate","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x12b"
}
eth_gasPrice
Returns the current gas unit price, in wei. It’s the hexadecimal equivalent of the price specified
for the --min-gas-price command line option when the node
started, or the default minimum gas price.
Parameters
None
Returns
result : quantity - Current gas unit price, in wei, as a hexadecimal value.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x3e8"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{gasPrice}"}' http://localhost:8547/graphql
{
gasPrice
}
{
"data" : {
"gasPrice" : "0x3e8"
}
}
eth_accounts
Returns a list of account addresses a client owns.
Note
This method returns an empty object because Besu doesn’t support key management inside the client.
To provide access to your key store and and then sign transactions, use EthSigner with Besu.
Parameters
None
Returns
Array of data : List of 20-byte account addresses owned by the client.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : [ ]
}
eth_blockNumber
Returns the index corresponding to the block number of the current chain head.
Parameters
None
Returns
result : QUANTITY - Hexadecimal integer representing the index corresponding to the block
number of the current chain head.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":51}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":51}
{
"jsonrpc" : "2.0",
"id" : 51,
"result" : "0x2377"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block{number}}"}' http://localhost:8547/graphql
{
block {
number
}
}
{
"data" : {
"block" : {
"number" : 16221
}
}
}
eth_getBalance
Returns the account balance of the specified address.
Parameters
DATA - 20-byte account address from which to retrieve the balance.
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : QUANTITY - Current balance, in wei, as a hexadecimal value.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "latest"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getBalance","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "latest"],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x1cfe56f3795885980000"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{ account ( address: \"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73\") { balance } }"}' http://localhost:8547/graphql
{
account(address: "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73") {
balance
}
}
{
"data": {
"account": {
"balance": "0x1ce96a1ffe7620d00000"
}
}
}
eth_getProof
Returns the account and storage values of the specified account, including the merkle proof.
The API allows IoT devices or mobile apps which are unable to run light clients to verify responses from untrusted sources, by using a trusted block hash.
Parameters
DATA - 20-byte address of the account or contract.
ARRAY - Array of 32-byte storage keys to generate proofs for.
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result: Object - Account details:
balance:Quantity- Account balance.codeHash:Data, 32-byte- Hash of the account code.nonce:Quantity- Number of transactions sent from the account.storageHash:Data, 32-byte- SHA3 of thestorageRoot.accountProof:Array- RLP-encoded merkle tree nodes, starting with thestateRoot.storageProof:Array- Storage entries. Each entry is an object that displays:key:Quantity- Storage key.value:Quantity- Storage value.proof:Array- RLP-encoded merkle tree nodes, starting with thestorageHash.
Example
curl -X POST --data '{"jsonrpc":"2.0","method": "eth_getProof","params": [
"0a8156e7ee392d885d10eaa86afd0e323afdcd95", ["0x0000000000000000000000000000000000000000000000000000000000000347"], "latest"],"id": 1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method": "eth_getProof","params": [
"0a8156e7ee392d885d10eaa86afd0e323afdcd95", ["0x0000000000000000000000000000000000000000000000000000000000000347"], "latest"],"id": 1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"accountProof": [
"0xf90211a0...608d898380",
"0xf90211a0...ec33f19580",
"0xf901d1a0...9e55584480",
"0xf8718080...18e5777142"
],
"address": "0x0a8156e7ee392d885d10eaa86afd0e323afdcd95",
"balance": "0x0",
"codeHash": "0x2b6975dcaf69f9bb9a3b30bb6a37b305ce440250bf0dd2f23338cb18e5777142",
"nonce": "0x5f",
"storageHash": "0x917688de43091589aa58c1dfd315105bc9de4478b9ba7471616a4d8a43d46203",
"storageProof": [
{
"key": "0x0000000000000000000000000000000000000000000000000000000000000347",
"value": "0x0",
"proof": [
"0xf90211a0...5176779280",
"0xf901f1a0...c208d86580",
"0xf8d180a0...1ce6808080"
]
}
]
}
}
eth_getStorageAt
Returns the value of a storage position at a specified address.
Parameters
DATA - A 20-byte storage address.
QUANTITY - Integer index of the storage position.
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : DATA - The value at the specified storage position.
Example
Calculating the correct position depends on the storage you want to retrieve.
curl -X POST --data '{"jsonrpc":"2.0","method": "eth_getStorageAt","params": ["0x3B3F3E","0x0","latest"],"id": 53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method": "eth_getStorageAt","params": ["0x3B3F3E","0x0","latest"],"id": 53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x0000000000000000000000000000000000000000000000000000000000000000"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{account(address: \"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73\") {storage(slot: \"0x04\")}}"}' http://localhost:8547/graphql
{
account(address: "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73") {
storage(slot: "0x04")
}
}
{
"data" : {
"account" : {
"storage" : "0x0000000000000000000000000000000000000000000000000000000000000000"
}
}
}
eth_getTransactionCount
Returns the number of transactions sent from a specified address. Use the pending tag to get the
next account nonce not used by any pending transactions.
Parameters
data - 20-byte account address.
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : quantity - Integer representing the number of transactions sent from the specified
address.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0xc94770007dda54cF92009BFF0dE90c06F603a09f","latest"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0xc94770007dda54cF92009BFF0dE90c06F603a09f","latest"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : "0x1"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{ account (address:\"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73\"){transactionCount}}"}' http://localhost:8547/graphql
{
account(address: "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73") {
transactionCount
}
}
{
"data" : {
"account" : {
"transactionCount" : 5
}
}
}
eth_getBlockTransactionCountByHash
Returns the number of transactions in the block matching the given block hash.
Parameters
data - 32-byte block hash.
Returns
result : quantity - Integer representing the number of transactions in the specified block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : null
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(hash:\"0xe455c14f757b0b9b67774baad1be1c180a4c1657df52259dbb685bf375408097\"){transactionCount}}"}' http://localhost:8547/graphql
{
block(hash: "0xe455c14f757b0b9b67774baad1be1c180a4c1657df52259dbb685bf375408097") {
transactionCount
}
}
{
"data" : {
"block" : {
"transactionCount" : 1
}
}
}
eth_getBlockTransactionCountByNumber
Returns the number of transactions in a block matching the specified block number.
Parameters
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : QUANTITY - Integer representing the number of transactions in the specified block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByNumber","params":["0xe8"],"id":51}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByNumber","params":["0xe8"],"id":51}
{
"jsonrpc" : "2.0",
"id" : 51,
"result" : "0x8"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(number:232){transactionCount}}"}' http://localhost:8547/graphql
{
block(number: 232) {
transactionCount
}
}
{
"data" : {
"block" : {
"transactionCount" : 1
}
}
}
eth_getUncleByBlockHashAndIndex
Returns uncle specified by block hash and index.
Parameters
data - 32-byte block hash.
quantity - Index of the uncle.
Returns
result : Block object
Note
Uncles do not contain individual transactions.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleByBlockHashAndIndex","params":["0xc48fb64230a82f65a08e7280bd8745e7fea87bc7c206309dee32209fe9a985f7", "0x0"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getUncleByBlockHashAndIndex","params":["0xc48fb64230a82f65a08e7280bd8745e7fea87bc7c206309dee32209fe9a985f7", "0x0"],"id":1}
{
"jsonrpc":"2.0",
"id":1,
"result":{
"difficulty":"0x76b123df93230",
"extraData":"0x50505945206e616e6f706f6f6c2e6f7267",
"gasLimit":"0x7a121d",
"gasUsed":"0x7a0175",
"hash":"0xc20189c0b1a4a23116ab3b177e929137f6e826f17fc4c2e880e7258c620e9817",
"logsBloom":"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",
"miner":"0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5",
"mixHash":"0xf557cc827e058862aa3ea1bd6088fb8766f70c0eac4117c56cf85b7911f82a14",
"nonce":"0xd320b48904347cdd",
"number":"0x768964",
"parentHash":"0x98d752708b3677df8f439c4529f999b94663d5494dbfc08909656db3c90f6255",
"receiptsRoot":"0x0f838f0ceb73368e7fc8d713a7761e5be31e3b4beafe1a6875a7f275f82da45b",
"sha3Uncles":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"size":"0x21a",
"stateRoot":"0xa0c7d4fca79810c89c517eff8dadb9c6d6f4bcc27c2edfb301301e1cf7dec642",
"timestamp":"0x5cdcbba6",
"totalDifficulty":"0x229ad33cabd4c40d23d",
"transactionsRoot":"0x866e38e91d01ef0387b8e07ccf35cd910224271ccf2b7477b8c8439e8b70f365",
"uncles":[]
}
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(hash:\"0xc48fb64230a82f65a08e7280bd8745e7fea87bc7c206309dee32209fe9a985f7\"){ ommerAt(index: 0) {difficulty extraData gasLimit gasUsed hash logsBloom mixHash nonce number receiptsRoot stateRoot timestamp totalDifficulty transactionsRoot}}}"}' http://localhost:8547/graphql
{
block(hash: "0xc48fb64230a82f65a08e7280bd8745e7fea87bc7c206309dee32209fe9a985f7") {
ommerAt(index: 0) {
difficulty
extraData
gasLimit
gasUsed
hash
logsBloom
mixHash
nonce
number
receiptsRoot
stateRoot
timestamp
totalDifficulty
transactionsRoot
}
}
}
{
"data": {
"block": {
"difficulty": "0x1",
"extraData": "0xf882a00000000000000000000000000000000000000000000000000000000000000000d5949811ebc35d7b06b3fa8dc5809a1f9c52751e1deb808400000000f843b8418e98ef756acdae1e510b1df4b507b7af04eb3802db7fa0f3e73e7d0721b3645e76f4eb3d0dbf0de75620c4405bd5a663247cdd9616482c883053856d857f884a01",
"gasLimit": 4700000,
"gasUsed": 0,
"hash": "0x0efe67972b982eb6be5df84e5238eb07475f86afa8a7de708f6a13ac0ff60d6c",
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"mixHash": "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
"nonce": "0x0000000000000000",
"number": 200,
"receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"stateRoot": "0xd650578a04b39f50cc979155f4510ec28c2c0a7c1e5fdbf84609bc7b1c430f48",
"timestamp": "0x5cd109fb",
"totalDifficulty": "0xc9",
"transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
}
}
}
eth_getUncleByBlockNumberAndIndex
Returns uncle specified by block number and index.
Parameters
quantity|tag - Index of the block, or one of the string tags latest, earliest, or pending,
as described in Block Parameter.
quantity - Index of the uncle.
Returns
result : Block object
Note
Uncles do not contain individual transactions.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params":["0x7689D2", "0x0"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params":["0x7689D2", "0x0"],"id":1}
{
"jsonrpc":"2.0",
"id":1,
"result":{
"difficulty":"0x77daec467bf93",
"extraData":"0x50505945206e616e6f706f6f6c2e6f7267",
"gasLimit":"0x7a121d",
"gasUsed":"0x7a0f7b",
"hash":"0x42d83ae9c0743f4b1f9c61ff7ea8b164c1bab3627decd49233760680be006ecf",
"logsBloom":"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",
"miner":"0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5",
"mixHash":"0xf977fcdb52868be410b75ef2becc35cc312f13ab0a6ce400ecd9d445f66fa3f2",
"nonce":"0x628b28403bf1e3d3",
"number":"0x7689d0",
"parentHash":"0xb32cfdfbf4adb05d30f02fcc6fe039cc6666402142954051c1a1cb9cc91aa11e",
"receiptsRoot":"0x9c7c8361d1a24ea2841432234c81974a9920d3eba2b2b1c496b5f925a95cb4ac",
"sha3Uncles":"0x7d972aa1b182b7e93f1db043f03fbdbfac6874fe7e67e162141bcc0aefa6336b",
"size":"0x21a",
"stateRoot":"0x74e97b77813146344d75acb5a52a006cc6dfaca678a10fb8a484a8443e919272",
"timestamp":"0x5cdcc0a7",
"totalDifficulty":"0x229b0583b4bd2698ca0",
"transactionsRoot":"0x1d21626afddf05e5866de66ca3fcd98f1caf5357eba0cc6ec675606e116a891b",
"uncles":[]
}
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(number:2587){ ommerAt(index: 0) {difficulty extraData gasLimit gasUsed hash logsBloom mixHash nonce number receiptsRoot stateRoot timestamp totalDifficulty transactionsRoot}}}"}' http://localhost:8547/graphql
{
block(number: 2587) {
ommerAt(index: 0) {
difficulty
extraData
gasLimit
gasUsed
hash
logsBloom
mixHash
nonce
number
receiptsRoot
stateRoot
timestamp
totalDifficulty
transactionsRoot
}
}
}
{
"data" : {
"block" : {
"ommerAt" : null
}
}
}
eth_getUncleCountByBlockHash
Returns the number of uncles in a block from a block matching the given block hash.
Parameters
DATA - 32-byte block hash.
Returns
result : QUANTITY - Integer representing the number of uncles in the specified block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : 0x0
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(hash:\"0x65c08d792e4192b9ece6b6f2390da7da464208b22d88490be8add9373917b426\"){ommerCount}}"}' http://localhost:8547/graphql
{
block(hash: "0x65c08d792e4192b9ece6b6f2390da7da464208b22d88490be8add9373917b426") {
ommerCount
}
}
{
"data" : {
"block" : {
"ommerCount" : 2
}
}
}
eth_getUncleCountByBlockNumber
Returns the number of uncles in a block matching the specified block number.
Parameters
QUANTITY|TAG - Integer representing either the index of the block within the blockchain, or one
of the string tags latest, earliest, or pending, as described in
Block Parameter.
Returns
result : QUANTITY - Integer representing the number of uncles in the specified block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : "0x1"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block(number:\"0x59fd\"){ommerCount}}"}' http://localhost:8547/graphql
{
block(number: "0x59fd") {
ommerCount
}
}
{
"data" : {
"block" : {
"ommerCount" : 0
}
}
}
eth_getCode
Returns the code of the smart contract at the specified address. Besu stores compiled smart contract code as a hexadecimal value.
Parameters
DATA - 20-byte contract address.
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : DATA - Code stored at the specified address.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa50a51c09a5c451c52bb714527e1974b686d8e77", "latest"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa50a51c09a5c451c52bb714527e1974b686d8e77", "latest"],"id":53}
{
"jsonrpc": "2.0",
"id": 53,
"result": "0x60806040526004361060485763ffffffff7c01000000000000000000000000000000000000000000000000000000006000350416633fa4f2458114604d57806355241077146071575b600080fd5b348015605857600080fd5b50605f6088565b60408051918252519081900360200190f35b348015607c57600080fd5b506086600435608e565b005b60005481565b60008190556040805182815290517f199cd93e851e4c78c437891155e2112093f8f15394aa89dab09e38d6ca0727879181900360200190a1505600a165627a7a723058209d8929142720a69bde2ab3bfa2da6217674b984899b62753979743c0470a2ea70029"
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{account(address: \"0xa50a51c09a5c451c52bb714527e1974b686d8e77\"){ code }}"}' http://localhost:8547/graphql
{
account(address: "0xa50a51c09a5c451c52bb714527e1974b686d8e77") {
code
}
}
{
"data" : {
"account" : {
"code" : "0x60806040526004361060485763ffffffff7c01000000000000000000000000000000000000000000000000000000006000350416633fa4f2458114604d57806355241077146071575b600080fd5b348015605857600080fd5b50605f6088565b60408051918252519081900360200190f35b348015607c57600080fd5b506086600435608e565b005b60005481565b60008190556040805182815290517f199cd93e851e4c78c437891155e2112093f8f15394aa89dab09e38d6ca0727879181900360200190a1505600a165627a7a723058209d8929142720a69bde2ab3bfa2da6217674b984899b62753979743c0470a2ea70029"
}
}
}
eth_sendRawTransaction
Sends a signed transaction. A transaction can send ether, deploy a contract, or interact with a contract.
You can interact with contracts using eth_sendRawTransaction or eth_call.
To avoid exposing your private key, create signed transactions offline and send the signed
transaction data using eth_sendRawTransaction.
Important
Besu does not implement eth_sendTransaction.
EthSigner provides transaction signing and implements
eth_sendTransaction.
Parameters
data - Signed transaction serialized to hexadecimal format. For example:
params: ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"]
Note
Creating and Sending Transactions includes examples of creating signed transactions using the web3.js library.
Returns
result : data - 32-byte transaction hash.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"],"id":1}
{
"id":1,
"jsonrpc": "2.0",
"result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "mutation {sendRawTransaction(data: \"0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833\")}"}' http://localhost:8547/graphql
mutation {
sendRawTransaction(data: "0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833")
}
{
"data" : {
"sendRawTransaction" : "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}
}
eth_call
Invokes a contract function locally and does not change the state of the blockchain.
You can interact with contracts using eth_sendRawTransaction or eth_call.
Parameters
OBJECT - Transaction call object.
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result - data - Return value of the executed contract.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13","value":"0x1"}, "latest"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13","value":"0x1"}, "latest"],"id":53}
{
"jsonrpc": "2.0",
"id": 53,
"result": "0x"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block {number call (data : {from : \"0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b\", to: \"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13\", data :\"0x12a7b914\"}){data status}}}"}' http://localhost:8547/graphql
{
block {
number
call(data: {from: "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", to: "0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13", data: "0x12a7b914"}) {
data
status
}
}
}
{
"data" : {
"block" : {
"number" : 17449,
"call" : {
"data" : "0x",
"status" : 1
}
}
}
}
eth_estimateGas
Returns an estimate of the gas required for a transaction to complete. The estimation process does not use gas and the transaction is not added to the blockchain. The resulting estimate can be greater than the amount of gas the transaction ends up using, for reasons including EVM mechanics and node performance.
The eth_estimateGas call does not send a transaction. You must call
eth_sendRawTransaction to execute the transaction.
Parameters
The transaction call object parameters are the same as those for eth_call, except that
in eth_estimateGas, all fields are optional. Setting a gas limit is irrelevant to the estimation
process (unlike transactions, in which gas limits apply).
OBJECT - Transaction call object.
Returns
result : quantity - Amount of gas used.
The following example returns an estimate of 21000 wei (0x5208) for the transaction.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{"from":"0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73","to":"0x44Aa93095D6749A706051658B970b941c72c1D53","value":"0x1"}],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{"from":"0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73","to":"0x44Aa93095D6749A706051658B970b941c72c1D53","value":"0x1"}],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : "0x5208"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block{estimateGas (data: {from :\"0x6295ee1b4f6dd65047762f924ecd367c17eabf8f\", to :\"0x8888f1f195afa192cfee860698584c030f4c9db1\"})}}"}' http://localhost:8547/graphql
{
block {
estimateGas(data: {from: "0x6295ee1b4f6dd65047762f924ecd367c17eabf8f", to: "0x8888f1f195afa192cfee860698584c030f4c9db1"})
}
}
{
"data" : {
"block" : {
"estimateGas" : 21000
}
}
}
The following example request estimates the cost of deploying a simple storage smart contract to the network. The data field contains the hash of the compiled contract you want to deploy. (You can get the compiled contract hash from your IDE; for example, Remix > Compile tab > details > WEB3DEPLOY.) The result is 113355 wei.
Returns
Example
curl -X POST \
http://127.0.0.1:8545 \
-H 'Content-Type: application/json' \
-d '{
"jsonrpc": "2.0",
"method": "eth_estimateGas",
"params": [{
"from": "0x8bad598904ec5d93d07e204a366d084a80c7694e",
"data": "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"
}],
"id": 1
}'
Example
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x1bacb"
}
eth_getBlockByHash
Returns information about the block by hash.
Parameters
DATA - 32-byte hash of a block.
Boolean - If true, returns the full transaction objects;
if false, returns the transaction hashes.
Returns
result : OBJECT - Block object , or null when there is no
block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByHash","params":["0x16b69965a5949262642cfb5e86368ddbbe57ab9f17d999174a65fd0e66580d8f", false],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getBlockByHash","params":["0x16b69965a5949262642cfb5e86368ddbbe57ab9f17d999174a65fd0e66580d8f", false],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : {
"number" : "0x7",
"hash" : "0x16b69965a5949262642cfb5e86368ddbbe57ab9f17d999174a65fd0e66580d8f",
"parentHash" : "0xe9bd4b277983580ef0eabad6011891f8b6aff9381a78bd1c4faca374a48b3e09",
"nonce" : "0x46acb59e85b5bb6d",
"sha3Uncles" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"transactionsRoot" : "0x7aa0913c235f272eb6ed6ab74ba5a057e0a62c1c1d1dbccfd971221e6b6e83a3",
"stateRoot" : "0xfaf6520d6e3d24107a4309855593341ab87a1744dbb6eea4e709b92e9c9107ca",
"receiptsRoot" : "0x056b23fbba480696b65fe5a59b8f2148a1299103c4f57df839233af2cf4ca2d2",
"miner" : "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"difficulty" : "0x5",
"totalDifficulty" : "0x10023",
"extraData" : "0x",
"size" : "0x270",
"gasLimit" : "0x1000000",
"gasUsed" : "0x5208",
"timestamp" : "0x5bbbe99f",
"uncles" : [ ],
"transactions" : [ "0x2cc6c94c21685b7e0f8ddabf277a5ccf98db157c62619cde8baea696a74ed18e" ]
}
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block (hash : \"0xb0efed1fc9326fee967cb2d845d4ebe57c5350a0670c8e86f8052dea6f219f92\") {number transactions{hash} timestamp difficulty totalDifficulty gasUsed gasLimit hash nonce ommerCount logsBloom mixHash ommerHash extraData stateRoot receiptsRoot transactionCount transactionsRoot}}"}' http://localhost:8547/graphql
{
block(hash: "0xb0efed1fc9326fee967cb2d845d4ebe57c5350a0670c8e86f8052dea6f219f92") {
number
transactions {
hash
}
timestamp
difficulty
totalDifficulty
gasUsed
gasLimit
hash
nonce
ommerCount
logsBloom
mixHash
ommerHash
extraData
stateRoot
receiptsRoot
transactionCount
transactionsRoot
}
}
{
"data" : {
"block" : {
"number" : 17607,
"transactions" : [ ],
"timestamp" : "0x5cdbdfb5",
"difficulty" : "0x1",
"totalDifficulty" : "0x44c8",
"gasUsed" : 0,
"gasLimit" : 4700000,
"hash" : "0xb0efed1fc9326fee967cb2d845d4ebe57c5350a0670c8e86f8052dea6f219f92",
"nonce" : "0x0000000000000000",
"ommerCount" : 0,
"logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"mixHash" : "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
"ommerHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"extraData" : "0xf882a00000000000000000000000000000000000000000000000000000000000000000d5949811ebc35d7b06b3fa8dc5809a1f9c52751e1deb808400000000f843b841fae6d25da0b91e3e88669d0a765c98479d86d53e9ea1f3fb6b36d7ff22fa622a3da0c49c20e5562c774e90acae8ad487936f6b6019cd8a782db684693cba1e9800",
"stateRoot" : "0xa7086c266aed46cd3bc45579178f8acb36d9d147de575a3ecbf8c7e6f1c737fc",
"receiptsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"transactionCount" : 0,
"transactionsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
}
}
}
eth_getBlockByNumber
Returns information about a block by block number.
Parameters
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Boolean - If true, returns the full transaction objects;
if false, returns only the hashes of the transactions.
Returns
result : OBJECT - Block object , or null when there is no
block.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x64", true],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x64", true],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : {
"number" : "0x64",
"hash" : "0xdfe2e70d6c116a541101cecbb256d7402d62125f6ddc9b607d49edc989825c64",
"parentHash" : "0xdb10afd3efa45327eb284c83cc925bd9bd7966aea53067c1eebe0724d124ec1e",
"nonce" : "0x37129c7f29a9364b",
"sha3Uncles" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"transactionsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"stateRoot" : "0x90c25f6d7fddeb31a6cc5668a6bba77adbadec705eb7aa5a51265c2d1e3bb7ac",
"receiptsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"miner" : "0xbb7b8287f3f0a933474a79eae42cbca977791171",
"difficulty" : "0x42be722b6",
"totalDifficulty" : "0x19b5afdc486",
"extraData" : "0x476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32",
"size" : "0x21e",
"gasLimit" : "0x1388",
"gasUsed" : "0x0",
"timestamp" : "0x55ba43eb",
"uncles" : [ ],
"transactions" : [ ]
}
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block (number : 100) {transactions{hash} timestamp difficulty totalDifficulty gasUsed gasLimit hash nonce ommerCount logsBloom mixHash ommerHash extraData stateRoot receiptsRoot transactionCount transactionsRoot ommers{hash} ommerAt(index : 1){hash} miner{address} account(address: \"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73\"){balance} parent{hash} }}"}' http://localhost:8547/graphql
{
block(number: 100) {
transactions {
hash
}
timestamp
difficulty
totalDifficulty
gasUsed
gasLimit
hash
nonce
ommerCount
logsBloom
mixHash
ommerHash
extraData
stateRoot
receiptsRoot
transactionCount
transactionsRoot
ommers {
hash
}
ommerAt(index: 1) {
hash
}
miner {
address
}
account(address: "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73") {
balance
}
parent {
hash
}
}
}
{
"data" : {
"block" : {
"transactions" : [ ],
"timestamp" : "0x5cd10933",
"difficulty" : "0x1",
"totalDifficulty" : "0x65",
"gasUsed" : 0,
"gasLimit" : 4700000,
"hash" : "0x63b3ea2bc37fec8f82680eb823652da6af8acebb4f6c4d0ff659c55be473c8b0",
"nonce" : "0x0000000000000000",
"ommerCount" : 0,
"logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"mixHash" : "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
"ommerHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"extraData" : "0xf882a00000000000000000000000000000000000000000000000000000000000000000d5949811ebc35d7b06b3fa8dc5809a1f9c52751e1deb808400000000f843b8414d877d8d0ced37ea138fab55a978f3740367a24a31731322ecdc3368f11e0d4966c9ce17ae59a76fb94eb436e8a386868f6bd6b0a5678e58daf49f5dd940558b00",
"stateRoot" : "0xd650578a04b39f50cc979155f4510ec28c2c0a7c1e5fdbf84609bc7b1c430f48",
"receiptsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"transactionCount" : 0,
"transactionsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"ommers" : [ ],
"ommerAt" : null,
"miner" : {
"address" : "0x9811ebc35d7b06b3fa8dc5809a1f9c52751e1deb"
},
"account" : {
"balance" : "0xad0f47f269cbf31ac"
},
"parent" : {
"hash" : "0x7bca25e1fa5e395fd6029eb496a70b6b5495843976bf9e49b993c723ded29d9e"
}
}
}
}
eth_getTransactionByHash
Returns transaction information for the specified transaction hash.
Parameters
DATA - 32-byte transaction hash.
Returns
Object - Transaction object, or null when there is no
transaction.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xa52be92809541220ee0aaaede6047d9a6c5d0cd96a517c854d944ee70a0ebb44"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xa52be92809541220ee0aaaede6047d9a6c5d0cd96a517c854d944ee70a0ebb44"],"id":53}
{
"jsonrpc" : "2.0",
"id" : 53,
"result" : {
"blockHash" : "0x510efccf44a192e6e34bcb439a1947e24b86244280762cbb006858c237093fda",
"blockNumber" : "0x422",
"from" : "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"gas" : "0x5208",
"gasPrice" : "0x3b9aca00",
"hash" : "0xa52be92809541220ee0aaaede6047d9a6c5d0cd96a517c854d944ee70a0ebb44",
"input" : "0x",
"nonce" : "0x1",
"to" : "0x627306090abab3a6e1400e9345bc60c78a8bef57",
"transactionIndex" : "0x0",
"value" : "0x4e1003b28d9280000",
"v" : "0xfe7",
"r" : "0x84caf09aefbd5e539295acc67217563438a4efb224879b6855f56857fa2037d3",
"s" : "0x5e863be3829812c81439f0ae9d8ecb832b531d651fb234c848d1bf45e62be8b9"
}
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{transaction(hash : \"0x03d80b9ca0a71435399a268609d6d7896f7155d2147cc22b780672bcb59b170d\") { block{hash} gas gasPrice hash nonce value from {address} to {address} status}}"}' http://localhost:8547/graphql
{
transaction(hash: "0x03d80b9ca0a71435399a268609d6d7896f7155d2147cc22b780672bcb59b170d") {
block {
hash
}
gas
gasPrice
hash
nonce
value
from {
address
}
to {
address
}
status
}
}
{
"data" : {
"transaction" : {
"block" : {
"hash" : "0xb1ef35744bade6980c3a933024b2557a8c724a19e5fdd2116bac712aa5e57198"
},
"gas" : 21000,
"gasPrice" : "0x2540be400",
"hash" : "0x03d80b9ca0a71435399a268609d6d7896f7155d2147cc22b780672bcb59b170d",
"nonce" : 6,
"value" : "0x8ac7230489e80000",
"from" : {
"address" : "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73"
},
"to" : {
"address" : "0x9d8f8572f345e1ae53db1dfa4a7fce49b467bd7f"
},
"status" : 1
}
}
}
eth_getTransactionByBlockHashAndIndex
Returns transaction information for the specified block hash and transaction index position.
Parameters
DATA - 32-byte hash of a block.
QUANTITY - Integer representing the transaction index position.
Returns
Object - Transaction object, or null when there is no
transaction.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0xbf137c3a7a1ebdfac21252765e5d7f40d115c2757e4a4abee929be88c624fdb7", "0x2"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0xbf137c3a7a1ebdfac21252765e5d7f40d115c2757e4a4abee929be88c624fdb7", "0x2"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : {
"blockHash" : "0xbf137c3a7a1ebdfac21252765e5d7f40d115c2757e4a4abee929be88c624fdb7",
"blockNumber" : "0x1442e",
"from" : "0x70c9217d814985faef62b124420f8dfbddd96433",
"gas" : "0x3d090",
"gasPrice" : "0x57148a6be",
"hash" : "0xfc766a71c406950d4a4955a340a092626c35083c64c7be907060368a5e6811d6",
"input" : "0x51a34eb8000000000000000000000000000000000000000000000029b9e659e41b780000",
"nonce" : "0x2cb2",
"to" : "0xcfdc98ec7f01dab1b67b36373524ce0208dc3953",
"transactionIndex" : "0x2",
"value" : "0x0",
"v" : "0x2a",
"r" : "0xa2d2b1021e1428740a7c67af3c05fe3160481889b25b921108ac0ac2c3d5d40a",
"s" : "0x63186d2aaefe188748bfb4b46fb9493cbc2b53cf36169e8501a5bc0ed941b484"
}
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{ block(hash: \"0x9270651f9c6fa36232c379d0ecf69b519383aa275815a65f1e03114346668f69\") { transactionAt(index: 0) {block{hash} hash } } }"}' http://localhost:8547/graphql
{
block(hash: "0x9270651f9c6fa36232c379d0ecf69b519383aa275815a65f1e03114346668f69") {
transactionAt(index: 0) {
block {
hash
}
hash
}
}
}
{
"data" : {
"block" : {
"transactionAt" : {
"block" : {
"hash" : "0x9270651f9c6fa36232c379d0ecf69b519383aa275815a65f1e03114346668f69"
},
"hash" : "0x5f5366af89e8777d5ae62a1af94a0876bdccbc22417bed0aff361eefa3e37f86"
}
}
}
}
eth_getTransactionByBlockNumberAndIndex
Returns transaction information for the specified block number and transaction index position.
Parameters
QUANTITY|TAG - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
QUANTITY - The transaction index position.
Returns
Object - Transaction object, or null when there is no
transaction.
Example
This request returns the third transaction in the 82990 block on the Ropsten testnet. You can also view this block and transaction on Etherscan.
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockNumberAndIndex","params":["82990", "0x2"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getTransactionByBlockNumberAndIndex","params":["82990", "0x2"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : {
"blockHash" : "0xbf137c3a7a1ebdfac21252765e5d7f40d115c2757e4a4abee929be88c624fdb7",
"blockNumber" : "0x1442e",
"from" : "0x70c9217d814985faef62b124420f8dfbddd96433",
"gas" : "0x3d090",
"gasPrice" : "0x57148a6be",
"hash" : "0xfc766a71c406950d4a4955a340a092626c35083c64c7be907060368a5e6811d6",
"input" : "0x51a34eb8000000000000000000000000000000000000000000000029b9e659e41b780000",
"nonce" : "0x2cb2",
"to" : "0xcfdc98ec7f01dab1b67b36373524ce0208dc3953",
"transactionIndex" : "0x2",
"value" : "0x0",
"v" : "0x2a",
"r" : "0xa2d2b1021e1428740a7c67af3c05fe3160481889b25b921108ac0ac2c3d5d40a",
"s" : "0x63186d2aaefe188748bfb4b46fb9493cbc2b53cf36169e8501a5bc0ed941b484"
}
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{block(number:20303) {transactionAt(index: 0) {block{hash} hash}}}"}' http://localhost:8547/graphql
{
block(number: 20303) {
transactionAt(index: 0) {
block {
hash
}
hash
}
}
}
{
"data" : {
"block" : {
"transactionAt" : {
"block" : {
"hash" : "0x9270651f9c6fa36232c379d0ecf69b519383aa275815a65f1e03114346668f69"
},
"hash" : "0x5f5366af89e8777d5ae62a1af94a0876bdccbc22417bed0aff361eefa3e37f86"
}
}
}
}
eth_getTransactionReceipt
Returns the receipt of a transaction by transaction hash. Receipts for pending transactions are not available.
If you enabled revert reason, the receipt includes available revert reasons in the response.
Parameters
DATA - 32-byte hash of a transaction.
Returns
Object - Transaction receipt object, or null when
there is no receipt.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0x504ce587a65bdbdb6414a0c6c16d86a04dd79bfcc4f2950eec9634b30ce5370f"],"id":53}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0x504ce587a65bdbdb6414a0c6c16d86a04dd79bfcc4f2950eec9634b30ce5370f"],"id":53}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"blockHash": "0xe7212a92cfb9b06addc80dec2a0dfae9ea94fd344efeb157c41e12994fcad60a",
"blockNumber": "0x50",
"contractAddress": null,
"cumulativeGasUsed": "0x5208",
"from": "0x627306090abab3a6e1400e9345bc60c78a8bef57",
"gasUsed": "0x5208",
"logs": [],
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"status": "0x1",
"to": "0xf17f52151ebef6c7334fad080c5704d77216b732",
"transactionHash": "0xc00e97af59c6f88de163306935f7682af1a34c67245e414537d02e422815efc3",
"transactionIndex": "0x0"
}
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{transaction(hash: \"0x5f5366af89e8777d5ae62a1af94a0876bdccbc22417bed0aff361eefa3e37f86\") {block{hash logsBloom} hash createdContract{address} cumulativeGasUsed gas gasUsed logs{topics} from{address} to{address} index}}"}' http://localhost:8547/graphql
{
transaction(hash: "0x5f5366af89e8777d5ae62a1af94a0876bdccbc22417bed0aff361eefa3e37f86") {
block {
hash
logsBloom
}
hash
createdContract {
address
}
cumulativeGasUsed
gas
gasUsed
logs {
topics
}
from {
address
}
to {
address
}
index
}
}
{
"data" : {
"transaction" : {
"block" : {
"hash" : "0x9270651f9c6fa36232c379d0ecf69b519383aa275815a65f1e03114346668f69",
"logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
},
"hash" : "0x5f5366af89e8777d5ae62a1af94a0876bdccbc22417bed0aff361eefa3e37f86",
"createdContract" : null,
"cumulativeGasUsed" : 21000,
"gas" : 21000,
"gasUsed" : 21000,
"logs" : [ ],
"from" : {
"address" : "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73"
},
"to" : {
"address" : "0x9d8f8572f345e1ae53db1dfa4a7fce49b467bd7f"
},
"index" : 0
}
}
}
eth_newFilter
Creates a log filter. To poll for logs associated with the created filter, use eth_getFilterChanges.
Parameters
Object - Filter options object.
Note
fromBlock and toBlock in the filter options object default to latest. To obtain logs
using eth_getFilterLogs, set fromBlock and toBlock appropriately.
Returns
data - Filter ID hash.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"fromBlock":"earliest", "toBlock":"latest", "topics":[]}],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"fromBlock":"earliest", "toBlock":"latest", "topics":[]}],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x1ddf0c00989044e9b41cc0ae40272df3"
}
eth_newBlockFilter
Creates a filter to retrieve new block hashes. To poll for new blocks, use eth_getFilterChanges.
Parameters
None
Returns
data - Filter ID hash.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x9d78b6780f844228b96ecc65a320a825"
}
eth_newPendingTransactionFilter
Creates a filter to retrieve new pending transactions hashes. To poll for new pending transactions, use eth_getFilterChanges.
Parameters
None
Returns
data - Filter ID hash.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newPendingTransactionFilter","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_newPendingTransactionFilter","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x443d6a77c4964707a8554c92f7e4debd"
}
eth_uninstallFilter
Uninstalls a filter with the specified ID. When a filter is no longer required, call this method.
Filters time out when not requested by eth_getFilterChanges for 10 minutes.
Parameters
data - Filter ID hash.
Returns
Boolean - true if the filter was successfully uninstalled; otherwise false.
Example
The following request deletes the block filter with an ID of 0x4:
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_uninstallFilter","params":["0x70355a0b574b437eaa19fe95adfedc0a"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_uninstallFilter","params":["0x70355a0b574b437eaa19fe95adfedc0a"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : true
}
eth_getFilterChanges
Polls the specified filter and returns an array of changes that have occurred since the last poll.
Parameters
data - Filter ID hash
Returns
result : Array of Object - If nothing changed since the last poll, an empty list. Otherwise:
- For filters created with
eth_newBlockFilter, returns block hashes. - For filters created with
eth_newPendingTransactionFilter, returns transaction hashes. - For filters created with
eth_newFilter, returns log objects.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getFilterChanges","params":["0xf8bf5598d9e04fbe84523d42640b9b0e"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getFilterChanges","params":["0xf8bf5598d9e04fbe84523d42640b9b0e"],"id":1}
Example result from a filter created with `eth_newBlockFilter`:
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"0xda2bfe44bf85394f0d6aa702b5af89ae50ae22c0928c18b8903d9269abe17e0b",
"0x88cd3a37306db1306f01f7a0e5b25a9df52719ad2f87b0f88ee0e6753ed4a812",
"0x4d4c731fe129ff32b425e6060d433d3fde278b565bbd1fd624d5a804a34f8786"
]
}
Example result from a filter created with `eth_newPendingTransactionFilter`:
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"0x1e977049b6db09362da09491bee3949d9362080ce3f4fc19721196d508580d46",
"0xa3abc4b9a4e497fd58dc59cdff52e9bb5609136bcd499e760798aa92802769be"
]
}
Example result from a filter created with `eth_newFilter`:
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"logIndex": "0x0",
"removed": false,
"blockNumber": "0x233",
"blockHash": "0xfc139f5e2edee9e9c888d8df9a2d2226133a9bd87c88ccbd9c930d3d4c9f9ef5",
"transactionHash": "0x66e7a140c8fa27fe98fde923defea7562c3ca2d6bb89798aabec65782c08f63d",
"transactionIndex": "0x0",
"address": "0x42699a7612a82f1d9c36148af9c77354759b210b",
"data": "0x0000000000000000000000000000000000000000000000000000000000000004",
"topics": [
"0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3"
]
},
{
"logIndex": "0x0",
"removed": false,
"blockNumber": "0x238",
"blockHash": "0x98b0ec0f9fea0018a644959accbe69cd046a8582e89402e1ab0ada91cad644ed",
"transactionHash": "0xdb17aa1c2ce609132f599155d384c0bc5334c988a6c368056d7e167e23eee058",
"transactionIndex": "0x0",
"address": "0x42699a7612a82f1d9c36148af9c77354759b210b",
"data": "0x0000000000000000000000000000000000000000000000000000000000000007",
"topics": [
"0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3"
]
}
]
}
eth_getFilterLogs
Returns an array of logs for the specified filter.
Leave the --auto-log-bloom-caching-enabled
command line option at the default value of true to improve log retrieval performance.
Note
eth_getFilterLogs is only used for filters created with eth_newFilter. To specify a filter
object and get logs without creating a filter, use eth_getLogs .
Parameters
data - Filter ID hash.
Returns
array - Log objects.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getFilterLogs","params":["0x5ace5de3985749b6a1b2b0d3f3e1fb69"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getFilterLogs","params":["0x5ace5de3985749b6a1b2b0d3f3e1fb69"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : [ {
"logIndex" : "0x0",
"removed" : false,
"blockNumber" : "0xb3",
"blockHash" : "0xe7cd776bfee2fad031d9cc1c463ef947654a031750b56fed3d5732bee9c61998",
"transactionHash" : "0xff36c03c0fba8ac4204e4b975a6632c862a3f08aa01b004f570cc59679ed4689",
"transactionIndex" : "0x0",
"address" : "0x2e1f232a9439c3d459fceca0beef13acc8259dd8",
"data" : "0x0000000000000000000000000000000000000000000000000000000000000003",
"topics" : [ "0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3" ]
}, {
"logIndex" : "0x0",
"removed" : false,
"blockNumber" : "0xb6",
"blockHash" : "0x3f4cf35e7ed2667b0ef458cf9e0acd00269a4bc394bb78ee07733d7d7dc87afc",
"transactionHash" : "0x117a31d0dbcd3e2b9180c40aca476586a648bc400aa2f6039afdd0feab474399",
"transactionIndex" : "0x0",
"address" : "0x2e1f232a9439c3d459fceca0beef13acc8259dd8",
"data" : "0x0000000000000000000000000000000000000000000000000000000000000005",
"topics" : [ "0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3" ]
} ]
}
eth_getLogs
Returns an array of logs matching a specified filter object.
Leave the --auto-log-bloom-caching-enabled
command line option at the default value of true to improve log retrieval performance.
Parameters
Object - Filter options object.
Returns
array - Log objects.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"fromBlock":"earliest", "toBlock":"latest", "address": "0x2e1f232a9439c3d459fceca0beef13acc8259dd8", "topics":[]}], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"fromBlock":"earliest", "toBlock":"latest", "address": "0x2e1f232a9439c3d459fceca0beef13acc8259dd8", "topics":[]}], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : [ {
"logIndex" : "0x0",
"removed" : false,
"blockNumber" : "0xb3",
"blockHash" : "0xe7cd776bfee2fad031d9cc1c463ef947654a031750b56fed3d5732bee9c61998",
"transactionHash" : "0xff36c03c0fba8ac4204e4b975a6632c862a3f08aa01b004f570cc59679ed4689",
"transactionIndex" : "0x0",
"address" : "0x2e1f232a9439c3d459fceca0beef13acc8259dd8",
"data" : "0x0000000000000000000000000000000000000000000000000000000000000003",
"topics" : [ "0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3" ]
}, {
"logIndex" : "0x0",
"removed" : false,
"blockNumber" : "0xb6",
"blockHash" : "0x3f4cf35e7ed2667b0ef458cf9e0acd00269a4bc394bb78ee07733d7d7dc87afc",
"transactionHash" : "0x117a31d0dbcd3e2b9180c40aca476586a648bc400aa2f6039afdd0feab474399",
"transactionIndex" : "0x0",
"address" : "0x2e1f232a9439c3d459fceca0beef13acc8259dd8",
"data" : "0x0000000000000000000000000000000000000000000000000000000000000005",
"topics" : [ "0x04474795f5b996ff80cb47c148d4c5ccdbe09ef27551820caa9c2f8ed149cce3" ]
} ]
}
curl -X POST -H "Content-Type: application/json" --data '{"query": "{logs(filter:{fromBlock: 1486000, toBlock: 1486010, addresses: [\"0x7ef66b77759e12caf3ddb3e4aff524e577c59d8d\"], topics: [[\"0x8a22ee899102a366ac8ad0495127319cb1ff2403cfae855f83a89cda1266674d\"]]}) {index topics data account{address} transaction{hash} }}"}' http://localhost:8547/graphql
{
logs(filter: {fromBlock: 1486000, toBlock: 1486010, addresses: ["0x7ef66b77759e12caf3ddb3e4aff524e577c59d8d"], topics: [["0x8a22ee899102a366ac8ad0495127319cb1ff2403cfae855f83a89cda1266674d"]]}) {
index
topics
data
account {
address
}
transaction {
hash
}
}
}
{
"data": {
"logs": [
{
"index": 0,
"topics": [
"0x8a22ee899102a366ac8ad0495127319cb1ff2403cfae855f83a89cda1266674d",
"0x0000000000000000000000000000000000000000000000000000000000000004",
"0x0000000000000000000000000000000000000000000000000000000000508918"
],
"data": "0xa5a04999ec29a8bd19ce32b859280ef9dbb464d846be06f64a1b1012ec08ab03",
"account": {
"address": "0x7ef66b77759e12caf3ddb3e4aff524e577c59d8d"
},
"transaction": {
"hash": "0x36a2186344c6a32760e7700fdf3685936220876c51ff39d071eb48c17f7e802f"
}
},
{
"index": 0,
"topics": [
"0x8a22ee899102a366ac8ad0495127319cb1ff2403cfae855f83a89cda1266674d",
"0x0000000000000000000000000000000000000000000000000000000000000003",
"0x0000000000000000000000000000000000000000000000000000000000648c72"
],
"data": "0x0ee96b660ad82c8010c90760a03edfbb40b4af5e3634a8c214e4ac7fa1f61492",
"account": {
"address": "0x7ef66b77759e12caf3ddb3e4aff524e577c59d8d"
},
"transaction": {
"hash": "0x9e2cc9e84a9e78839d6f4b591dfd98cc7a454a8ee3cd6ccd0a18e662e22d3818"
}
}
]
}
}
eth_getWork
Returns the hash of the current block, the seed hash, and the required target boundary condition.
Parameters
None
Returns
result : Array of DATA with the following fields:
- DATA, 32 Bytes - Hash of the current block header (pow-hash).
- DATA, 32 Bytes - The seed hash used for the DAG.
- DATA, 32 Bytes - The required target boundary condition; 2^256 / difficulty.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getWork","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eth_getWork","params":[],"id":1}
{
"id":1,
"jsonrpc":"2.0",
"result": [
"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"0x5EED00000000000000000000000000005EED0000000000000000000000000000",
"0xd1ff1c01710000000000000000000000d1ff1c01710000000000000000000000"
]
}
eth_submitWork
Submits a Proof of Work (Ethash) solution.
Used by mining software such as Ethminer.
Parameters
- DATA, 8 Bytes - Retrieved nonce.
- DATA, 32 Bytes - Hash of the block header (PoW-hash).
- DATA, 32 Bytes - Mix digest.
Returns
result: Boolean, true if the provided solution is valid, otherwise false.
Example
curl -X POST --data '{"jsonrpc":"2.0", "method":"eth_submitWork", "params":["0x0000000000000001", "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef", "0xD1GE5700000000000000000000000000D1GE5700000000000000000000000000"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0", "method":"eth_submitWork", "params":["0x0000000000000001", "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef", "0xD1GE5700000000000000000000000000D1GE5700000000000000000000000000"],"id":73}
{
"id":1,
"jsonrpc":"2.0",
"result": true
}
Clique methods
Note
The CLIQUE API methods are not enabled by default for JSON-RPC. To enable the CLIQUE API
methods use the --rpc-http-api or
--rpc-ws-api options.
clique_discard
Discards a proposal to add or remove a signer with the specified address.
Parameters
data - 20-byte address of proposed signer.
Returns
result: boolean - true
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_discard","params":["0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_discard","params":["0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : true
}
clique_getSigners
Lists signers for the specified block.
Parameters
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result: array of data - List of 20-byte addresses of signers.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_getSigners","params":["latest"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_getSigners","params":["latest"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : [ "0x42eb768f2244c8811c63729a21a3569731535f06", "0x7ffc57839b00206d1ad20c69a1981b489f772031", "0xb279182d99e65703f0076e4812653aab85fca0f0" ]
}
clique_getSignerMetrics
Provides validator metrics for the specified range:
- Number of blocks from each validator.
- Block number of the last block proposed by each validator (if any proposed in the specified range).
- All validators present in the last block.
Parameters
fromBlockNumber - Integer representing a block number or the string tag earliest, as described
in Block Parameter.
toBlockNumber - Integer representing a block number or one of the string tags latest or
pending, as described in
Block Parameter
If you specify:
- No parameters, the call provides metrics for the last 100 blocks, or all blocks if there are less than 100 blocks.
- Only the first parameter, the call provides metrics for all blocks from the block specified to the latest block.
Returns
result: object - List of validator objects.
Note
The proposer of the genesis block has address 0x0000000000000000000000000000000000000000.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_getSignerMetrics","params":["1", "100"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_getSignerMetrics","params":["1", "100"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"address": "0x7ffc57839b00206d1ad20c69a1981b489f772031",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x61"
},
{
"address": "0x42eb768f2244c8811c63729a21a3569731535f06",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x63"
},
{
"address": "0xb279182d99e65703f0076e4812653aab85fca0f0",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x62"
}
]
}
clique_getSignersAtHash
Lists signers for the specified block.
Parameters
data - 32-byte block hash.
Returns
result: array of data - List of 20-byte addresses of signers.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_getSignersAtHash","params":["0x98b2ddb5106b03649d2d337d42154702796438b3c74fd25a5782940e84237a48"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_getSignersAtHash","params":["0x98b2ddb5106b03649d2d337d42154702796438b3c74fd25a5782940e84237a48"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : [ "0x42eb768f2244c8811c63729a21a3569731535f06", "0x7ffc57839b00206d1ad20c69a1981b489f772031", "0xb279182d99e65703f0076e4812653aab85fca0f0" ]
}
clique_propose
Propose to add or remove a signer with the specified address.
Parameters
data - 20-byte address.
boolean - true to propose adding signer or false to propose removing signer.
Returns
result: boolean - true
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_propose","params":["0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73", true], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_propose","params":["0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73", true], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : true
}
clique_proposals
Returns current proposals.
Parameters
None
Returns
result:object - Map of account addresses to corresponding boolean values indicating the
proposal for each account.
If the boolean value is true, the proposal is to add a signer. If false, the proposal is to
remove a signer.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"clique_proposals","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"clique_proposals","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"0x42eb768f2244c8811c63729a21a3569731535f07": false,
"0x12eb759f2222d7711c63729a45c3585731521d01": true
}
}
Debug methods
Note
The DEBUG API methods are not enabled by default for JSON-RPC. To enable the DEBUG API
methods, use the --rpc-http-api or
--rpc-ws-api options.
The DEBUG API is an more verbose alternative to the TRACE API.
debug_accountRange
Retesteth uses
debug_accountRange to implement debugging.
Returns the accounts for a specified block.
Parameters
blockHashOrNumber : data - Block hash or number.
txIndex : integer - Transaction index from which to start.
address : data - Address hash from which to start.
limit : integer - Maximum number of account entries to return.
Returns
result:object - Account details:
addressMap:object- List of address hashes and account addresses.nextKey:data- Hash of the next address if any addresses remain in the state, otherwise zero.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_accountRange","params":["12345", 0, "0", 5],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_accountRange","params":["12345", 0, "0", 5],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"addressMap": {
"0x005e5...86960": "0x0000000000000000000000000000000000000000",
"0x021fe...6ffe3": "0x0000000000000000000000000000000000000000",
"0x028e6...ab776": "0x0000000000000000000000000000000000000000",
"0x02cb5...bc4d8": "0x0000000000000000000000000000000000000000",
"0x03089...23fd5": "0x0000000000000000000000000000000000000000"
},
"nextKey": "0x04242954a5cb9748d3f66bcd4583fd3830287aa585bebd9dd06fa6625976be49"
}
}
debug_storageRangeAt
Remix uses debug_storageRangeAt to implement debugging. Use the
Debugger tab in Remix instead of calling debug_storageRangeAt directly.
Returns the contract storage for the specified range.
Parameters
blockHash : data - Block hash.
txIndex : integer - Transaction index from which to start.
address : data - Contract address.
startKey : hash - Start key.
limit : integer - Number of storage entries to return.
Returns
result:object - Range object.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_storageRangeAt","params":["0x2b76b3a2fc44c0e21ea183d06c846353279a7acf12abcc6fb9d5e8fb14ae2f8c",0,"0x0e0d2c8f7794e82164f11798276a188147fbd415","0x0000000000000000000000000000000000000000000000000000000000000000",1], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_storageRangeAt","params":["0x2b76b3a2fc44c0e21ea183d06c846353279a7acf12abcc6fb9d5e8fb14ae2f8c",0,"0x0e0d2c8f7794e82164f11798276a188147fbd415","0x0000000000000000000000000000000000000000000000000000000000000000",1], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"storage": {
"0x290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563": {
"key": null,
"value": "0x0000000000000000000000000000000000000000000000000000000000000001"
}
},
"nextKey": "0xb10e2d527612073b26eecdfd717e6a320cf44b4afac2b0732d9fcbe2b7fa0cf6"
}
}
debug_metrics
Returns metrics providing information on the internal operation of Besu.
The available metrics might change over time. The JVM metrics might vary based on the JVM implementation used.
The metric types are:
- Timer
- Counter
- Gauge.
Parameters
None
Returns
result:object
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_metrics","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_metrics","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"jvm": {
"memory_bytes_init": {
"heap": 268435456,
"nonheap": 2555904
},
"threads_current": 41,
"memory_bytes_used": {
"heap": 696923976,
"nonheap": 63633456
},
"memory_pool_bytes_used": {
"PS Eden Space": 669119360,
"Code Cache": 19689024,
"Compressed Class Space": 4871144,
"PS Survivor Space": 2716320,
"PS Old Gen": 25088296,
"Metaspace": 39073288
},
...
},
"process": {
"open_fds": 546,
"cpu_seconds_total": 67.148992,
"start_time_seconds": 1543897699.589,
"max_fds": 10240
},
"rpc": {
"request_time": {
"debug_metrics": {
"bucket": {
"+Inf": 2,
"0.01": 1,
"0.075": 2,
"0.75": 2,
"0.005": 1,
"0.025": 2,
"0.1": 2,
"1.0": 2,
"0.05": 2,
"10.0": 2,
"0.25": 2,
"0.5": 2,
"5.0": 2,
"2.5": 2,
"7.5": 2
},
"count": 2,
"sum": 0.015925392
}
}
},
"blockchain": {
"difficulty_total": 3533501,
"announcedBlock_ingest": {
"bucket": {
"+Inf": 0,
"0.01": 0,
"0.075": 0,
"0.75": 0,
"0.005": 0,
"0.025": 0,
"0.1": 0,
"1.0": 0,
"0.05": 0,
"10.0": 0,
"0.25": 0,
"0.5": 0,
"5.0": 0,
"2.5": 0,
"7.5": 0
},
"count": 0,
"sum": 0
},
"height": 1908793
},
"peers": {
"disconnected_total": {
"remote": {
"SUBPROTOCOL_TRIGGERED": 5
},
"local": {
"TCP_SUBSYSTEM_ERROR": 1,
"SUBPROTOCOL_TRIGGERED": 2,
"USELESS_PEER": 3
}
},
"peer_count_current": 2,
"connected_total": 10
}
}
}
debug_traceTransaction
Remix uses debug_traceTransaction to implement debugging. Use the
Debugger tab in Remix instead of calling debug_traceTransaction directly.
Reruns the transaction with the same state as when the transaction executed.
Parameters
transactionHash : data - Transaction hash.
Object - request options (all optional and default to false):
disableStorage:boolean-truedisables storage capture.disableMemory:boolean-truedisables memory capture.disableStack:boolean-truedisables stack capture.
Returns
result:object - Trace object.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_traceTransaction","params":["0x2cc6c94c21685b7e0f8ddabf277a5ccf98db157c62619cde8baea696a74ed18e",{"disableStorage":true}],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_traceTransaction","params":["0x2cc6c94c21685b7e0f8ddabf277a5ccf98db157c62619cde8baea696a74ed18e",{"disableStorage":true}],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : {
"gas" : 21000,
"failed" : false,
"returnValue" : "",
"structLogs" : [ {
"pc" : 0,
"op" : "STOP",
"gas" : 0,
"gasCost" : 0,
"depth" : 1,
"stack" : [ ],
"memory" : [ ],
"storage" : null
} ]
}
}
debug_traceBlock
Returns full trace of all invoked opcodes of all transactions included in the block.
Parameters
Block : data - RLP of the block.
Object - request options (all optional and default to false):
disableStorage:boolean-truedisables storage capture.disableMemory:boolean-truedisables memory capture.disableStack:boolean-truedisables stack capture.
Returns
result:object - Trace object.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_traceBlock","params":["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"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_traceBlock","params":["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"],"id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : {
"gas" : 21000,
"failed" : false,
"returnValue" : "",
"structLogs" : [ {
"pc" : 0,
"op" : "STOP",
"gas" : 0,
"gasCost" : 0,
"depth" : 1,
"stack" : [ ],
"memory" : [ ],
"storage" : null
} ]
}
}
debug_traceBlockByHash
Returns full trace of all invoked opcodes of all transactions included in the block.
Parameters
block hash : data - Block hash.
Object - request options (all optional and default to false):
disableStorage:boolean-truedisables storage capture.disableMemory:boolean-truedisables memory capture.disableStack:boolean-truedisables stack capture.
Returns
result:array of objects - Trace objects.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_traceBlockByHash","params":["0xaceb3b2c9b25b0589230873921eb894b28722011b8df63977145517d754875a5"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_traceBlockByHash","params":["0xaceb3b2c9b25b0589230873921eb894b28722011b8df63977145517d754875a5"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"gas": 21000,
"failed": false,
"returnValue": "",
"structLogs": [
{
"pc": 0,
"op": "STOP",
"gas": 0,
"gasCost": 0,
"depth": 1,
"stack": [],
"memory": [],
"storage": {},
"reason": null
}
]
}
]
}
debug_traceBlockByNumber
Returns full trace of all invoked opcodes of all transactions included in the block.
Parameters
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Object - request options (all optional and default to false):
disableStorage:boolean-truedisables storage capture.disableMemory:boolean-truedisables memory capture.disableStack:boolean-truedisables stack capture.
Returns
result:array of objects - Trace objects.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_traceBlockByNumber","params":["0x7224",{"disableStorage":true}], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"debug_traceBlockByNumber","params":["0x7224",{"disableStorage":true}], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"gas": 21000,
"failed": false,
"returnValue": "",
"structLogs": [
{
"pc": 0,
"op": "STOP",
"gas": 0,
"gasCost": 0,
"depth": 1,
"stack": [],
"memory": [],
"storage": null,
"reason": null
}
]
}
]
}
Miner methods
Note
The MINER API methods are not enabled by default for JSON-RPC. To enable the MINER API
methods, use the --rpc-http-api or
--rpc-ws-api options.
miner_start
Starts the mining process. To start mining, you must first specify a miner coinbase using the
--miner-coinbase command line option.
Parameters
None
Returns
result : boolean - true if mining starts, or if the node was already mining.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_start","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"miner_start","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": true
}
miner_stop
Stops the mining process on the client.
Parameters
None
Returns
result : boolean - true if mining stops, or if the node was not mining.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_stop","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"miner_stop","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": true
}
IBFT 2.0 methods
Note
The IBFT API methods are not enabled by default for JSON-RPC. To enable the IBFT API
methods, use the --rpc-http-api or
--rpc-ws-api options.
ibft_discardValidatorVote
Discards a proposal to add or remove a validator with the specified address.
Parameters
data - 20-byte address of proposed validator.
Returns
result: boolean - true
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_discardValidatorVote","params":["0xef1bfb6a12794615c9b0b5a21e6741f01e570185"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_discardValidatorVote","params":["0xef1bfb6a12794615c9b0b5a21e6741f01e570185"], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : true
}
ibft_getPendingVotes
Returns current votes.
Parameters
None
Returns
result: object - Map of account addresses to corresponding boolean values indicating the vote
for each account.
If the boolean value is true, the vote is to add a validator. If false, the proposal is to
remove a validator.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_getPendingVotes","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_getPendingVotes","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"0xef1bfb6a12794615c9b0b5a21e6741f01e570185": true,
"0x42d4287eac8078828cf5f3486cfe601a275a49a5": true
}
}
ibft_getValidatorsByBlockHash
Lists the validators defined in the specified block.
Parameters
data - 32-byte block hash.
Returns
result: array of data - List of validator addresses.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_getValidatorsByBlockHash","params":["0xbae7d3feafd743343b9a4c578cab5e5d65eb735f6855fb845c00cab356331256"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_getValidatorsByBlockHash","params":["0xbae7d3feafd743343b9a4c578cab5e5d65eb735f6855fb845c00cab356331256"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"0x42d4287eac8078828cf5f3486cfe601a275a49a5",
"0xb1b2bc9582d2901afdc579f528a35ca41403fa85",
"0xef1bfb6a12794615c9b0b5a21e6741f01e570185"
]
}
ibft_getValidatorsByBlockNumber
Lists the validators defined in the specified block.
Parameters
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result: array of data - List of validator addresses.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_getValidatorsByBlockNumber","params":["latest"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_getValidatorsByBlockNumber","params":["latest"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"0x42d4287eac8078828cf5f3486cfe601a275a49a5",
"0xb1b2bc9582d2901afdc579f528a35ca41403fa85",
"0xef1bfb6a12794615c9b0b5a21e6741f01e570185"
]
}
ibft_proposeValidatorVote
Propose to add or remove a validator with the specified address.
Parameters
data - Account address
boolean - true to propose adding validator or false to propose removing validator.
Returns
result: boolean - true
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_proposeValidatorVote","params":["42d4287eac8078828cf5f3486cfe601a275a49a5",true], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_proposeValidatorVote","params":["42d4287eac8078828cf5f3486cfe601a275a49a5",true], "id":1}
{
"jsonrpc" : "2.0",
"id" : 1,
"result" : true
}
ibft_getSignerMetrics
Provides validator metrics for the specified range:
- Number of blocks from each validator.
- Block number of the last block proposed by each validator (if any proposed in the specified range).
- All validators present in the last block of the range.
Parameters
fromBlockNumber - Integer representing a block number or the string tag earliest as described
in Block Parameter.
toBlockNumber - Integer representing a block number or one of the string tags latest or
pending, as described in
Block Parameter
If you specify:
- No parameters, the call provides metrics for the last 100 blocks, or all blocks if there are less than 100 blocks.
- Only the first parameter, the call provides metrics for all blocks from the block specified to the latest block.
Returns
result: object - List of validator objects
Note
The proposer of the genesis block has address 0x0000000000000000000000000000000000000000.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"ibft_getSignerMetrics","params":["1", "100"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"ibft_getSignerMetrics","params":["1", "100"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"address": "0x7ffc57839b00206d1ad20c69a1981b489f772031",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x61"
},
{
"address": "0x42eb768f2244c8811c63729a21a3569731535f06",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x63"
},
{
"address": "0xb279182d99e65703f0076e4812653aab85fca0f0",
"proposedBlockCount": "0x21",
"lastProposedBlockNumber": "0x62"
}
]
}
Permissioning methods
Use the permissioning API methods for local permissioning only.
Important
The PERM API methods are not enabled by default for JSON-RPC. To enable the PERM API
methods, use the --rpc-http-api or
--rpc-ws-api CLI options.
perm_addAccountsToWhitelist
Adds accounts (participants) to the accounts whitelist.
Parameters
list of strings - List of account addresses.
Note
The parameters list contains a list which is why the account addresses are enclosed by double square brackets.
Returns
result - Success or error. Errors include attempting to add accounts already on the whitelist
or including invalid account addresses.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_addAccountsToWhitelist","params":[["0xb9b81ee349c3807e46bc71aa2632203c5b462032", "0xb9b81ee349c3807e46bc71aa2632203c5b462034"]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_addAccountsToWhitelist","params":[["0xb9b81ee349c3807e46bc71aa2632203c5b462032", "0xb9b81ee349c3807e46bc71aa2632203c5b462034"]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
perm_getAccountsWhitelist
Lists accounts (participants) in the accounts whitelist.
Parameters
None
Returns
result: list - Accounts (participants) in the accounts whitelist.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_getAccountsWhitelist","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_getAccountsWhitelist","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"0x0000000000000000000000000000000000000009",
"0xb9b81ee349c3807e46bc71aa2632203c5b462033"
]
}
perm_removeAccountsFromWhitelist
Removes accounts (participants) from the accounts whitelist.
Parameters
list of strings - List of account addresses.
Note
The parameters list contains a list which is why the account addresses are enclosed by double square brackets.
Returns
result - Success or error. Errors include attempting to remove accounts not on the whitelist
or including invalid account addresses.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_removeAccountsFromWhitelist","params":[["0xb9b81ee349c3807e46bc71aa2632203c5b462032", "0xb9b81ee349c3807e46bc71aa2632203c5b462034"]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_removeAccountsFromWhitelist","params":[["0xb9b81ee349c3807e46bc71aa2632203c5b462032", "0xb9b81ee349c3807e46bc71aa2632203c5b462034"]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
perm_addNodesToWhitelist
Adds nodes to the nodes whitelist.
Parameters
list of strings - List of enode URLs.
Note
The parameters list contains a list which is why the enode URLs are enclosed by double square brackets.
Returns
result - Success or error. Errors include attempting to add nodes already on the whitelist or
including invalid enode URLs.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_addNodesToWhitelist","params":[["enode://7e4ef30e9ec683f26ad76ffca5b5148fa7a6575f4cfad4eb0f52f9c3d8335f4a9[email protected]127.0.0.1:30303","enode://2feb33b3c6c4a8f77d84a5ce44954e83e5f163e7a65f7f7a7fec499ceb0ddd76a[email protected]127.0.0.1:30304"]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_addNodesToWhitelist","params":[["enode://7e4ef30e9ec683f26ad76ffca5b5148fa7a6575f4cfad4eb0f52f9c3d8335f4a9[email protected]127.0.0.1:30303","enode://2feb33b3c6c4a8f77d84a5ce44954e83e5f163e7a65f7f7a7fec499ceb0ddd76a[email protected]127.0.0.1:30304"]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
perm_getNodesWhitelist
Lists nodes in the nodes whitelist.
Parameters
None
Returns
result: list - Enode URLs of nodes in the nodes whitelist.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_getNodesWhitelist","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_getNodesWhitelist","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
"enode://7b61d5ee4b44335873e6912cb5dd3e3877c860ba21417c9b9ef1f7e500a822137[email protected]127.0.0.1:30305",
"enode://2feb33b3c6c4a8f77d84a5ce44954e83e5f163e7a65f7f7a7fec499ceb0ddd76a[email protected]127.0.0.1:30304"
]
}
perm_removeNodesFromWhitelist
Removes nodes from the nodes whitelist.
Parameters
list of strings - List of enode URLs
Note
The parameters list contains a list which is why the enode URLs are enclosed by double square brackets.
Returns
result - Success or error. Errors include attempting to remove nodes not on the whitelist or
including invalid enode URLs.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_removeNodesFromWhitelist","params":[["enode://7e4ef30e9ec683f26ad76ffca5b5148fa7a6575f4cfad4eb0f52f9c3d8335f4a9[email protected]127.0.0.1:30303","enode://2feb33b3c6c4a8f77d84a5ce44954e83e5f163e7a65f7f7a7fec499ceb0ddd76a[email protected]127.0.0.1:30304"]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_removeNodesFromWhitelist","params":[["enode://7e4ef30e9ec683f26ad76ffca5b5148fa7a6575f4cfad4eb0f52f9c3d8335f4a9[email protected]127.0.0.1:30303","enode://2feb33b3c6c4a8f77d84a5ce44954e83e5f163e7a65f7f7a7fec499ceb0ddd76a[email protected]127.0.0.1:30304"]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
perm_reloadPermissionsFromFile
Reloads the accounts and nodes whitelists from the permissions configuration file.
Parameters
None
Returns
result - Success, or error if the permissions configuration file is not valid.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"perm_reloadPermissionsFromFile","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"perm_reloadPermissionsFromFile","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
Txpool methods
Note
The TXPOOL API methods are not enabled by default for JSON-RPC. To enable the TXPOOL API
methods, use the --rpc-http-api or
--rpc-ws-api options.
txpool_besuStatistics
Lists statistics about the node transaction pool.
Parameters
None
Returns
result - Transaction pool statistics:
maxSize- Maximum number of transactions kept in the transaction pool. Use the--tx-pool-max-sizeoption to configure the maximum size.localCount- Number of transactions submitted directly to this node.remoteCount- Number of transactions received from remote nodes.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_besuStatistics","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"txpool_besuStatistics","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"maxSize": 4096,
"localCount": 1,
"remoteCount": 0
}
}
txpool_besuTransactions
Lists transactions in the node transaction pool.
Parameters
None
Returns
result - List of transactions.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_besuTransactions","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"txpool_besuTransactions","params":[],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"hash": "0x8a66830098be4006a3f63a03b6e9b67aa721e04bd6b46d420b8f1937689fb4f1",
"isReceivedFromLocalSource": true,
"addedToPoolAt": "2019-03-21T01:35:50.911Z"
},
{
"hash": "0x41ee803c3987ceb5bcea0fad7a76a8106a2a6dd654409007d9931032ea54579b",
"isReceivedFromLocalSource": true,
"addedToPoolAt": "2019-03-21T01:36:00.374Z"
}
]
}
Trace methods
Note
The TRACE API methods are not enabled by default for JSON-RPC. To enable the TRACE API
methods, use the --rpc-http-api or
--rpc-ws-api options.
The TRACE API is an more concise alternative to the DEBUG API.
trace_replayBlockTransactions
Provides transaction processing tracing per block.
Important
Your node must be an archive node (that is, synchronised without pruning or fast sync) or the requested block must be within the number of pruning blocks retained (by default, 1024).
Parameters
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
array of strings - Tracing options are
trace, vmTrace, and stateDiff. Specify any
combination of the three options including none of them.
Returns
result - Array of transaction trace objects containing
one object per transaction, in transaction execution order.
Example
curl -X POST --data '{"jsonrpc": "2.0", "method": "trace_replayBlockTransactions","params": ["0x12",["trace","vmTrace","stateDiff"]],"id": 1}' http://127.0.0.1:8545
{"jsonrpc": "2.0", "method": "trace_replayBlockTransactions","params": ["0x12",["trace","vmTrace","stateDiff"]],"id": 1}
{
"jsonrpc": "2.0",
"id": 1,
"result":[
{
"output":"0x",
"vmTrace":{
"code":"0x7f3940be4289e4c3587d88c1856cc95352461992db0a584c281226faefe560b3016000527f14c4d2c102bdeb2354bfc3dc96a95e4512cf3a8461e0560e2272dbf884ef3905601052600851",
"ops":[
{
"cost":3,
"ex":{
"mem":null,
"push":[
"0x8"
],
"store":null,
"used":16756175
},
"pc":72,
"sub":null
},
...
]
},
"trace":[
{
"action":{
"callType":"call",
"from":"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"gas":"0xffadea",
"input":"0x",
"to":"0x0100000000000000000000000000000000000000",
"value":"0x0"
},
"result":{
"gasUsed":"0x1e",
"output":"0x"
},
"subtraces":0,
"traceAddress":[
],
"type":"call"
}
],
"stateDiff":{
"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73":{
"balance":{
"*":{
"from":"0xffffffffffffffffffffffffffffffffc3e12a20b",
"to":"0xffffffffffffffffffffffffffffffffc3dc5f091"
}
},
"code":"=",
"nonce":{
"*":{
"from":"0x14",
"to":"0x15"
}
},
"storage":{
}
}
},
"transactionHash":"0x2a5079cc535c429f668f13a7fb9a28bdba6831b5462bd04f781777b332a8fcbd",
},
{...}
]
}
trace_block
Provides transaction processing of type trace for the specified block.
Important
Your node must be an archive node (that is, synchronised without pruning or fast sync) or the requested block must be within the number of pruning blocks retained (by default, 1024).
Parameters
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result - Array of calls to other contracts containing
one object per call, in transaction execution order.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"trace_block","params":["0x6"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"trace_block","params":["0x6"],"id":1}
{
"jsonrpc": "2.0",
"result": [
{
"action": {
"callType": "call",
"from": "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"gas": "0xffad82",
"input": "0x0000000000000000000000000000000000000999",
"to": "0x0020000000000000000000000000000000000000",
"value": "0x0"
},
"blockHash": "0x71512d31e18f828cef069a87bc2c7514a8ca334f9ee72625efdf5cc2d43768dd",
"blockNumber": 6,
"result": {
"gasUsed": "0x7536",
"output": "0x"
},
"subtraces": 1,
"traceAddress": [],
"transactionHash": "0x91eeabc671e2dd2b1c8ddebb46ba59e8cb3e7d189f80bcc868a9787728c6e59e",
"transactionPosition": 0,
"type": "call"
},
{
"action": {
"address": "0x0020000000000000000000000000000000000000",
"balance": "0x300",
"refundAddress": "0x0000000000000999000000000000000000000000"
},
"blockHash": "0x71512d31e18f828cef069a87bc2c7514a8ca334f9ee72625efdf5cc2d43768dd",
"blockNumber": 6,
"result": null,
"subtraces": 0,
"traceAddress": [
0
],
"transactionHash": "0x91eeabc671e2dd2b1c8ddebb46ba59e8cb3e7d189f80bcc868a9787728c6e59e",
"transactionPosition": 0,
"type": "suicide"
},
{
"action": {
"author": "0x0000000000000000000000000000000000000000",
"rewardType": "block",
"value": "0x1bc16d674ec80000"
},
"blockHash": "0x71512d31e18f828cef069a87bc2c7514a8ca334f9ee72625efdf5cc2d43768dd",
"blockNumber": 6,
"result": null,
"subtraces": 0,
"traceAddress": [],
"transactionHash": null,
"transactionPosition": null,
"type": "reward"
}
],
"id": 1
}
trace_transaction
Provides transaction processing of type trace for the specified transction.
Important
Your node must be an archive node (that is, synchronised without pruning or fast sync) or the requested transaction must be contained in a blocked within the number of pruning blocks retained (by default, 1024).
Parameters
data : Transaction hash
Returns
result - Array of calls to other contracts containing
one object per call, in the order called by the transaction.
Example
curl -X POST --data '{"jsonrpc": "2.0", "method": "trace_transaction","params": ["0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7"],"id": 1}' http://127.0.0.1:8545
{"jsonrpc": "2.0", "method": "trace_transaction","params": ["0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7"],"id": 1}
{
"jsonrpc": "2.0",
"result": [
{
"action": {
"creationMethod": "create",
"from": "0x627306090abab3a6e1400e9345bc60c78a8bef57",
"gas": "0xff2e26",
"init": "0x60006000600060006000732c2b9c9a4a25e24b174f26114e8926a9f2128fe45af2600060006000600060007300a00000000000000000000000000000000000005af2",
"value": "0x0"
},
"blockHash": "0x7e9a993adc6f043c0a9b6a385e6ed3fa370586c55823251b8fa7033cf89d414e",
"blockNumber": 19,
"result": {
"address": "0x30753e4a8aad7f8597332e813735def5dd395028",
"code": "0x",
"gasUsed": "0x1c39"
},
"subtraces": 2,
"traceAddress": [],
"transactionHash": "0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7",
"transactionPosition": 3,
"type": "create"
},
{
"action": {
"callType": "callcode",
"from": "0x30753e4a8aad7f8597332e813735def5dd395028",
"gas": "0xfb2ea9",
"input": "0x",
"to": "0x2c2b9c9a4a25e24b174f26114e8926a9f2128fe4",
"value": "0x0"
},
"blockHash": "0x7e9a993adc6f043c0a9b6a385e6ed3fa370586c55823251b8fa7033cf89d414e",
"blockNumber": 19,
"result": {
"gasUsed": "0x138e",
"output": "0x"
},
"subtraces": 1,
"traceAddress": [
0
],
"transactionHash": "0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7",
"transactionPosition": 3,
"type": "call"
},
{
"action": {
"address": "0x30753e4a8aad7f8597332e813735def5dd395028",
"balance": "0x0",
"refundAddress": "0x0000000000000000000000000000000000000000"
},
"blockHash": "0x7e9a993adc6f043c0a9b6a385e6ed3fa370586c55823251b8fa7033cf89d414e",
"blockNumber": 19,
"result": null,
"subtraces": 0,
"traceAddress": [
0,
0
],
"transactionHash": "0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7",
"transactionPosition": 3,
"type": "suicide"
},
{
"action": {
"callType": "callcode",
"from": "0x30753e4a8aad7f8597332e813735def5dd395028",
"gas": "0xfb18a5",
"input": "0x",
"to": "0x00a0000000000000000000000000000000000000",
"value": "0x0"
},
"blockHash": "0x7e9a993adc6f043c0a9b6a385e6ed3fa370586c55823251b8fa7033cf89d414e",
"blockNumber": 19,
"result": {
"gasUsed": "0x30b",
"output": "0x"
},
"subtraces": 0,
"traceAddress": [
1
],
"transactionHash": "0x4c253746668dca6ac3f7b9bc18248b558a95b5fc881d140872c2dff984d344a7",
"transactionPosition": 3,
"type": "call"
}
],
"id": 1
}
EEA methods
Note
The EEA API methods are not enabled by default for JSON-RPC. To enable the EEA API methods,
use the --rpc-http-api or
--rpc-ws-api options.
eea_sendRawTransaction
Distributes the private transaction, generates the Privacy Marker Transaction and submits it to the transaction pool, and returns the transaction hash of the Privacy Marker Transaction.
The signed transaction passed as an input parameter includes the privateFrom,
privateFor or privacyGroupId,
and restriction fields.
To avoid exposing your private key, create signed transactions offline and send the signed
transaction data using eea_sendRawTransaction.
Important
For production systems requiring private transactions, use a network with a consensus mechanism supporting transaction finality to make sure the private state does not become inconsistent with the chain. For example, IBFT 2.0 provides the required finality.
Using private transactions with pruning or fast sync is not supported.
Besu does not implement
eea_sendTransaction.
EthSigner provides transaction signing and
implements eea_sendTransaction.
Parameters
data - Signed RLP-encoded private transaction. For example:
params: ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"]
Returns
result : data - 32-byte transaction hash of the
Privacy Marker Transaction.
Tip
If creating a contract, use priv_getTransactionReceipt to retrieve the contract address after the transaction is finalized.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"eea_sendRawTransaction","params": ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"eea_sendRawTransaction","params": ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"], "id":1}
{
"id":1,
"jsonrpc": "2.0",
"result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}
Priv methods
Note
The PRIV API methods are not enabled by default for JSON-RPC. To enable the PRIV API
methods, use the --rpc-http-api or
--rpc-ws-api options.
priv_call
Invokes a private contract function locally and does not change the privacy group state.
For private contracts, priv_call is the same as eth_call.
Parameters
data - 32-byte privacy Group ID.
object - Transaction call object.
quantity|tag - Integer representing a block number or one of the string tags latest,
earliest, or pending, as described in
Block Parameter.
Returns
result : data - Return value of the executed contract.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_call","params":["tb8NVyQqZnHNegf/3mYsyB+HEud4SPWn90rz3GoskRw=", {"to":"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13","data": "0x3fa4f245"}, "latest"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_call","params":["tb8NVyQqZnHNegf/3mYsyB+HEud4SPWn90rz3GoskRw=", {"to":"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13","data": "0x3fa4f245"}, "latest"],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x0000000000000000000000000000000000000000000000000000000000000001"
}
curl -X POST -H "Content-Type: application/json" --data '{ "query": "{block {number call (data : {from : \"0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b\", to: \"0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13\", data :\"0x12a7b914\"}){data status}}}"}' http://localhost:8547/graphql
{
block {
number
call(data: {from: "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", to: "0x69498dd54bd25aa0c886cf1f8b8ae0856d55ff13", data: "0x12a7b914"}) {
data
status
}
}
}
{
"data" : {
"block" : {
"number" : 17449,
"call" : {
"data" : "0x",
"status" : 1
}
}
}
}
priv_distributeRawTransaction
Distributes a signed, RLP encoded private transaction.
Tip
If you want to sign the Privacy Marker Transaction outside of Besu,
use priv_distributeRawTransaction
instead of eea_sendRawTransaction.
Parameters
data - Signed RLP-encoded private transaction. For example:
params: ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"]
Returns
result : data - 32-byte enclave key. The enclave key is a pointer to the private transaction in
Orion.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_distributeRawTransaction","params": ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_distributeRawTransaction","params": ["0xf869018203e882520894f17f52151ebef6c7334fad080c5704d77216b732881bc16d674ec80000801ba02da1c48b670996dcb1f447ef9ef00b33033c48a4fe938f420bec3e56bfd24071a062e0aa78a81bf0290afbc3a9d8e9a068e6d74caa66c5e0fa8a46deaae96b0833"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0xfd0d90ab824574abc19c0776ca0210e764561d0ef6d621f2bbbea316eccfe56b"
}
priv_getEeaTransactionCount
Returns the private transaction count for the specified account and group of sender and recipients.
Important
If sending more than one transaction to be mined in the same block (that is, you are not waiting for the transaction receipt), you must calculate the private transaction nonce outside Besu.
Parameters
data - Account address.
data - Base64 encoded Orion address of the sender.
array of data - Base64 encoded Orion addresses of recipients.
Returns
quantity - Integer representing the number of private transactions sent from the address to the
specified group of sender and recipients.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_getEeaTransactionCount","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "GGilEkXLaQ9yhhtbpBT03Me9iYa7U/mWXxrJhnbl1XY=", ["KkOjNLmCI6r+mICrC6l+XuEDjFEzQllaMQMpWLl4y1s=","eLb69r4K8/9WviwlfDiZ4jf97P9czyS3DkKu0QYGLjg="]], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_getEeaTransactionCount","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "GGilEkXLaQ9yhhtbpBT03Me9iYa7U/mWXxrJhnbl1XY=", ["KkOjNLmCI6r+mICrC6l+XuEDjFEzQllaMQMpWLl4y1s=","eLb69r4K8/9WviwlfDiZ4jf97P9czyS3DkKu0QYGLjg="]], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x1"
}
priv_getPrivacyPrecompileAddress
Returns the address of the
privacy precompiled contract. Specify the
address using the --privacy-precompiled-address
command line option.
Parameters
None
Returns
result : data - Address of the privacy precompile.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_getPrivacyPrecompileAddress","params":[], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_getPrivacyPrecompileAddress","params":[], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x000000000000000000000000000000000000007e"
}
priv_getPrivateTransaction
Returns the private transaction if you are a participant; otherwise, null.
Parameters
data - Transaction hash returned by eea_sendRawTransaction or
eea_sendTransction.
Returns
Object - Private transaction object, or null if not
a participant in the private transaction.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_getPrivateTransaction","params":["0x623c4ce5275a87b91f4f1c521012d39ca19311c787bde405490f4c0426a71498"], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_getPrivateTransaction","params":["0x623c4ce5275a87b91f4f1c521012d39ca19311c787bde405490f4c0426a71498"], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"from": "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"gas": "0x2dc6c0",
"gasPrice": "0x0",
"hash": "0x623c4ce5275a87b91f4f1c521012d39ca19311c787bde405490f4c0426a71498",
"input": "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",
"nonce": "0x0",
"to": null,
"value": "0x0",
"v": "0xfe8",
"r": "0x654a6a9663ca70bb13e27cca14b3777cc92da184e19a151cdeef2ccbbd5c6405",
"s": "0x5dd4667b020c8a5af7ae28d4c3126f8dcb1187f49dcf0de9d7a39b1651892eef",
"privateFrom": "negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=",
"privateFor": [
"g59BmTeJIn7HIcnq8VQWgyh/pDbvbt2eyP0Ii60aDDw="
],
"restriction": "restricted"
}
}
priv_createPrivacyGroup
Creates a group of nodes, specified by their Orion public key.
Parameters
Object - Request options:
addresses:array of data- Array of nodes, specified by Orion public keys.name:string- Privacy group name. Optional.description:string- Privacy group description. Optional.
Returns
Privacy group ID
Example
curl -X POST --data '{"jsonrpc":"2.0","method": "priv_createPrivacyGroup", "params": [{"addresses":["sTZpbQhcOfd9ZaFDnC00e/N2Ofv9p4/ZTBbEeVtXJ3E=","quhb1pQPGN1w8ZSZSyiIfncEAlVY/M/rauSyQ5wVMRE="],"name":"Group A","description":"Description Group A"}],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method": "priv_createPrivacyGroup", "params": [{"addresses":["sTZpbQhcOfd9ZaFDnC00e/N2Ofv9p4/ZTBbEeVtXJ3E=","quhb1pQPGN1w8ZSZSyiIfncEAlVY/M/rauSyQ5wVMRE="],"name":"Group A","description":"Description Group A"}],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "ewuTVoc5nlvWMwTFdRRK/wvV0dcyQo/Pauvx5bNEbTk="
}
priv_deletePrivacyGroup
Deletes the specified privacy group.
Parameters
data - Privacy group ID
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_deletePrivacyGroup","params":["ewuTVoc5nlvWMwTFdRRK/wvV0dcyQo/Pauvx5bNEbTk="],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_deletePrivacyGroup","params":["ewuTVoc5nlvWMwTFdRRK/wvV0dcyQo/Pauvx5bNEbTk="],"id":1}
{
"jsonrpc": "2.0",
"id": 53,
"result": "ewuTVoc5nlvWMwTFdRRK/wvV0dcyQo/Pauvx5bNEbTk="
}
priv_findPrivacyGroup
Returns a list of privacy groups containing only the listed members. For example, if the listed members are A and B, a privacy group containing A, B, and C is not returned.
Parameters
array of data - Members specified by Orion public keys.
Returns
Privacy groups containing only the specified members. Privacy groups are EEA-compliant or Besu-extended with types:
LEGACYfor EEA-compliant groups.BESUfor Besu-extended groups.
Example
curl -X POST --data '{"jsonrpc": "2.0","method": "priv_findPrivacyGroup","params": [["negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=", "g59BmTeJIn7HIcnq8VQWgyh/pDbvbt2eyP0Ii60aDDw="]],"id": 1}' http://127.0.0.1:8545
{"jsonrpc": "2.0","method": "priv_findPrivacyGroup","params": [["negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=", "g59BmTeJIn7HIcnq8VQWgyh/pDbvbt2eyP0Ii60aDDw="]],"id": 1}
{
"jsonrpc": "2.0",
"id": 1,
"result": [
{
"privacyGroupId": "GpK3ErNO0xF27T0sevgkJ3+4qk9Z+E3HtXYxcKIBKX8=",
"name": "Group B",
"description": "Description of Group B",
"type": "BESU",
"members": [
"negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=",
"g59BmTeJIn7HIcnq8VQWgyh/pDbvbt2eyP0Ii60aDDw="
]
}
]
}
priv_getTransactionCount
Returns the private transaction count for specified account and privacy group.
Important
If sending more than one transaction to be mined in the same block (that is, you are not waiting for the transaction receipt), you must calculate the private transaction nonce outside Besu.
Parameters
data - Account address.
data - Privacy group ID.
Returns
quantity - Integer representing the number of private transactions sent from the address to the
specified privacy group.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_getTransactionCount","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "kAbelwaVW7okoEn1+okO+AbA4Hhz/7DaCOWVQz9nx5M="], "id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_getTransactionCount","params":["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "kAbelwaVW7okoEn1+okO+AbA4Hhz/7DaCOWVQz9nx5M="], "id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x1"
}
priv_getTransactionReceipt
Returns information about the private transaction after mining the transaction. Receipts for pending transactions are not available.
Parameters
data - 32-byte hash of a transaction.
Returns
Object - Private Transaction receipt object,
or null if no receipt found.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"priv_getTransactionReceipt","params":["0xf3ab9693ad92e277bf785e1772f29fb1864904bbbe87b0470455ddb082caab9d"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"priv_getTransactionReceipt","params":["0xf3ab9693ad92e277bf785e1772f29fb1864904bbbe87b0470455ddb082caab9d"],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"contractAddress": "0x493b76031593402e24e16faa81f677b58e2d53f3",
"from": "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
"output": "0x6080604052600436106049576000357c010000000000000000000000000000000000000000000
0000000000000900463ffffffff1680633fa4f24514604e57806355241077146076575b600080fd5b3480156059
57600080fd5b50606060a0565b6040518082815260200191505060405180910390f35b348015608157600080fd5b
50609e6004803603810190808035906020019092919050505060a6565b005b60005481565b8060008190555050560
0a165627a7a723058202bdbba2e694dba8fff33d9d0976df580f57bff0a40e25a46c398f8063b4c00360029",
"commitmentHash": "0x79b9e6b0856db398ad7dc208f15b1d38c0c0b0c5f99e4a443a2c5a85510e96a5",
"transactionHash": "0x36219e92b5f53d4150aa9ef7d2d793118cced523de6724100da5b534e3ceb4b8",
"privateFrom": "negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=",
"privacyGroupId": "cD636RZlcqVSpoxT/ExbkWQfBO7kPAZO0QlWHErNSL8=",
"status": "0x1",
"logs": []
}
}
Plugins methods
Note
The PLUGINS API methods are not enabled by default for JSON-RPC. To enable the PLUGINS API
methods, use the --rpc-http-api or
--rpc-ws-api options.
plugins_reloadPluginConfig
Reloads specified plugin configuration.
Parameters
string - Plugin
Returns
string - Success
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"plugins_reloadPluginConfig","params":["tech.pegasys.plus.plugin.kafka.KafkaPlugin"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"plugins_reloadPluginConfig","params":["tech.pegasys.plus.plugin.kafka.KafkaPlugin"],"id":1}
{
"jsonrpc": "2.0",
"id": 1,
"result": "Success"
}
Miscellaneous methods
rpc_modules
Lists enabled APIs and the version of each.
Parameters
None
Returns
Enabled APIs.
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"rpc_modules","params":[],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","method":"rpc_modules","params":[],"id":1}
```json tab=”JSON result” { “jsonrpc”: “2.0”, “id”: 1, “result”: { “web3”: “1.0”, “eth”: “1.0”, “net”: “1.0” } }