eth_getTransactionByBlockNumberAndIndex - SEI

Example code for the eth_getTransactionByBlockNumberAndIndex JSON-RPC method. Complete guide on how to use eth_getTransactionByBlockNumberAndIndex JSON-RPC in GetBlock Web3 documentation

Returns information about a transaction on the Sei network by block number and transaction index position.

Parameters

Parameter	Type	Description
blockNumber	string	Block number in hex, or 'latest', 'earliest', 'pending', 'safe', 'finalized'
index	string	The transaction index position as a hex string

Request

cURL

curl --location 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockNumberAndIndex",
    "params": ["latest", "0x0"],
    "id": "getblock.io"
}'

Axios

Rust

Request

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "hash": "0x88df01...",
        "blockNumber": "0x4B8F2A1",
        "from": "0x742d35Cc...",
        "to": "0x123456...",
        "value": "0x9184e72a"
    }
}

Response Parameters

Field	Type	Description
hash	string	The transaction hash
blockNumber	string	Block number containing this transaction
from	string	Address of the sender
to	string	Address of the receiver
value	string	Value transferred in wei

Use Case

The eth_getTransactionByBlockNumberAndIndex method is essential for:

• Blockchain developers building applications on Sei

• Wallet applications requiring network data

• Analytics platforms tracking Sei network activity

• DeFi protocols integrating with Sei's parallelized EVM

Error Handling

Common errors when using this method:

Error Code	Message	Description
-32700	Parse error	Invalid JSON
-32600	Invalid Request	JSON is not a valid request object
-32601	Method not found	Method does not exist
-32602	Invalid params	Invalid method parameters
-32603	Internal error	Internal JSON-RPC error
-32000	Invalid input	Generic input error
-32500	Cross-VM error	Error in cross-VM operation (Sei-specific)

Web3 Integration

Ethers.js

import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');

// Using ethers provider methods
const result = await provider.send('eth_getTransactionByBlockNumberAndIndex', ["latest", "0x0"]);
console.log(result);

Viem