eth_getTransactionByHash

Returns the information about a transaction by transaction hash on Flow EVM Gateway.

Why Flow EVM? Build on the EVM-equivalent layer on Flow blockchain enabling Cadence+Solidity composability with full EVM equivalence on Flow, atomic multi-operation transactions, 40% lower gas fees, and 473% contract growth in 2025.

Use Cases

The eth_getTransactionByHash method is essential for:

• Transaction tracking - Get details of pending or confirmed transactions
• Payment verification - Verify transaction parameters
• Debugging - Analyze transaction data for consumer NFTs (NBA Top Shot, Disney Pinnacle), gaming dApps, and hybrid Cadence-EVM applications
• Block explorers - Display transaction information

Parameters

Parameter	Type	Required	Description
transactionHash	DATA	Yes	32-byte transaction hash

Request

{
  "jsonrpc": "2.0",
  "method": "eth_getTransactionByHash",
  "params": [""],
  "id": 1
}

Returns

Field	Type	Description
hash	DATA	Transaction hash
from	DATA	Sender address
to	DATA	Recipient address
value	QUANTITY	Value in wei
gas	QUANTITY	Gas provided
gasPrice	QUANTITY	Gas price in wei
input	DATA	Transaction input data
nonce	QUANTITY	Sender's nonce
blockHash	DATA	Block hash (null if pending)
blockNumber	QUANTITY	Block number (null if pending)

Code Examples

cURL

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": "eth_getTransactionByHash",
    "params": [""],
    "id": 1
  }'

JavaScript

import { JsonRpcProvider, formatEther } from 'ethers';

const provider = new JsonRpcProvider('https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY');

const txHash = '';
const tx = await provider.getTransaction(txHash);

if (tx) {
  console.log('From:', tx.from);
  console.log('To:', tx.to);
  console.log('Value:', formatEther(tx.value));
  console.log('Block:', tx.blockNumber);
}

Python

from web3 import Web3

w3 = Web3(Web3.HTTPProvider('https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY'))

tx_hash = ''
tx = w3.eth.get_transaction(tx_hash)

if tx:
    print(f'From: {tx["from"]}')
    print(f'To: {tx["to"]}')
    print(f'Value: {w3.from_wei(tx["value"], "ether")}')
    print(f'Block: {tx["blockNumber"]}')

Go

package main

import (
    "context"
    "fmt"
    "log"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/ethclient"
)

func main() {
    client, err := ethclient.Dial("https://api-flow-evm-gateway-mainnet.n.dwellir.com/YOUR_API_KEY")
    if err != nil {
        log.Fatal(err)
    }

    txHash := common.HexToHash("")
    tx, isPending, err := client.TransactionByHash(context.Background(), txHash)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Printf("Pending: %v\n", isPending)
    fmt.Printf("Value: %s\n", tx.Value().String())
}

Error Handling

Error Code	Message	Description
-32602	Invalid params	Invalid transaction hash format

Related Methods

• eth_getTransactionReceipt - Get transaction receipt
• eth_sendRawTransaction - Send transaction