web3_sha3 - Flow EVM RPC Method
Calculate Keccak-256 hash on Flow EVM Gateway.
Returns Keccak-256 (not standard SHA3-256) of the given data on Flow EVM Gateway.
Request Parameters
Data to hash
Response Body
Keccak-256 hash of the data
Code Examples
curl -X POST https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "web3_sha3",
"params": ["0x68656c6c6f"],
"id": 1
}'import { JsonRpcProvider, keccak256, toUtf8Bytes } from 'ethers';
const provider = new JsonRpcProvider('https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY');
// Using RPC
const hash = await provider.send('web3_sha3', ['0x68656c6c6f']);
console.log('Hash:', hash);
// Using ethers directly (faster)
const localHash = keccak256(toUtf8Bytes('hello'));
console.log('Local hash:', localHash);