A web3 event subscriber for tracking and capturing smart contract events in real-time.
To test the application, you can use the following commands:
docker run -p 8545:8545 romanovich23/anvil-node
cargo run
git clone [email protected]:romanovich23/dummy-contracts.git YOUR_WORKSPACE_PATH/dummy-contracts
cd YOUR_WORKSPACE_PATH/dummy-contracts
forge create src/DummyContract.sol:DummyContract --rpc-url http://localhost:8545 --private-key 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80
cast send --rpc-url http://localhost:8545 --private-key 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512 "createDummyStruct(uint256,int256)" 42 -- -5
The project uses the following environment variables:
BLOCKCHAIN_PROTOCOL: Protocol to connect to the blockchain (default:ws)BLOCKCHAIN_HOST: Host of the blockchain node (default:localhost)BLOCKCHAIN_PORT: Port of the blockchain node (default:8545)BLOCKCHAIN_PATH: Path to the blockchain node (default: empty)CONTRACT_ADDRESS: Address of the smart contract to subscribe to (default:0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512)
The configuration is stored in resources/application.yml and can be overridden by environment-specific files like
resources/application-{env}.yml.
Example application.yml:
network:
protocol: ${BLOCKCHAIN_PROTOCOL:ws}
host: ${BLOCKCHAIN_HOST:localhost}
port: ${BLOCKCHAIN_PORT:8545}
path: ${BLOCKCHAIN_PATH:}
subscriptions:
- contract_address: ${CONTRACT_ADDRESS:0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512}
events:
- DummyStructCreated(uint256,uint256,int256,bool,address,string,bytes32)
- contract_address: ${CONTRACT_ADDRESS:0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512}
events:
- DummyStructUpdated(uint256,uint256,int256,bool,address,string,bytes32)