Use the multi-node example in the web3js-quorum client library
Warning
Orion features have been merged into Tessera! Read our Orion to Tessera migration guide and about all the new Tessera features.
To use the examples provided in the web3js-quorum library with your privacy network:
Note
This example uses 3 of the 4 nodes configured in the privacy tutorial.
-
Clone the ConsenSys/web3js-quorum repository:
git clone https://github.com/ConsenSys/web3js-quorum
-
In the
web3js-quorum
directory:npm install
-
In the
example
directory, update thekeys.js
file to include:- chain ID
- Tessera node public keys
- Hyperledger Besu node RPC URLs
- Hyperledger Besu node private keys.
-
In the
example/multiNodeExample
directory, deploy the contract:node deployContract.js
A private transaction receipt returns.
Transaction Hash 0x23b57ddc3ecf9c9a548e4401a411420ffc0002fd259a86d5656add7c6108beeb Waiting for transaction to be mined ... Private Transaction Receipt { contractAddress: '0xfee84481da8f4b9a998dfacb38091b3145bb01ab', from: '0x9811ebc35d7b06b3fa8dc5809a1f9c52751e1deb', to: null, output: '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', logs: [] }
Note
If you receive a
Method not enabled
error, ensure you enabled the appropriate APIs using the--rpc-http-api
-
Copy the contract address from the private transaction receipt and set the
CONTRACT_ADDRESS
environment variable:export CONTRACT_ADDRESS=<Contract Address from Private Transaction Receipt>
Example
export CONTRACT_ADDRESS=0xfee84481da8f4b9a998dfacb38091b3145bb01ab
-
Store a value in the contract from Node 1:
node storeValueFromNode1.js
Node 1 stores the value of 1000 (3e8 in hex) and is visible to Node 1 and Node 2.
Transaction Hash: 0xd9d71cc6f64675e1a48183ded8f08930af317eb883ebae4c4eec66ae68618d85 Waiting for transaction to be mined ... Event Emited: 0x0000000000000000000000009811ebc35d7b06b3fa8dc5809a1f9c52751e1deb00000000000000000000000000000000000000000000000000000000000003e8 Waiting for transaction to be mined ... Get Value from http://localhost:8545: 0x00000000000000000000000000000000000000000000000000000000000003e8 Waiting for transaction to be mined ... Get Value from http://localhost:8546: 0x00000000000000000000000000000000000000000000000000000000000003e8 Waiting for transaction to be mined ... Get Value from http://localhost:8547: 0x
-
Store a value in the contract from Node 2:
node storeValueFromNode2.js
Node 2 stores the value of 42 (2a in hex) and is visible to Node 1 and Node 2.
Transaction Hash: 0xa025433aec47a71b0230f12f43708812fd38ff7b7c1dc89a715f71dcbd5fbdbf Waiting for transaction to be mined ... Event Emited: 0x000000000000000000000000372a70ace72b02cc7f1757183f98c620254f9c8d000000000000000000000000000000000000000000000000000000000000002a Waiting for transaction to be mined ... Get Value from http://localhost:8545: 0x000000000000000000000000000000000000000000000000000000000000002a Waiting for transaction to be mined ... Get Value from http://localhost:8546: 0x000000000000000000000000000000000000000000000000000000000000002a Waiting for transaction to be mined ... Get Value from http://localhost:8547: 0x
Note
As expected, log messages indicate that Node 3 Tessera cannot find payloads because Node 3 does not have access to the private transactions between Node 1 and Node 2.