eth_getLogs - Polygon

Example code for the eth_getLogs json-rpc method. Сomplete guide on how to use eth_getLogs json-rpc in GetBlock.io Web3 documentation.

The eth_getLogs method returns an array of all logs matching the given filter object. This is the most flexible way to query event logs without creating a persistent filter.

Parameters

Parameter	Type	Required	Description
filterObject	object	Yes	Filter options including fromBlock, toBlock, address, and topics

Request

cURL

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [{"fromBlock": "0x3A2B5C0", "toBlock": "0x3A2B5C7", "address": "0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0"}],
    "id": "getblock.io"
}'

JavaScript (Axios)

Python (requests)

Rust (reqwest)

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": [{
        "address": "0x...",
        "topics": ["0x..."],
        "data": "0x...",
        "blockNumber": "0x3A2B5C7",
        "transactionHash": "0x..."
    }]
}

Response Parameters

Field	Type	Description
jsonrpc	string	JSON-RPC version (2.0)
id	string	Request identifier
result	varies	Array of log objects matching the filter criteria

Use Case

The eth_getLogs method is useful for:

• Event indexing

• Transfer tracking

• DEX analysis

• NFT monitoring

Error Handling

Status Code	Error Message	Cause
403	Forbidden	Missing or invalid ACCESS-TOKEN
-32600	Invalid Request	Malformed request body
-32602	Invalid params	Invalid method parameters

Web3 Integration

Ethers.js

ethers.js

import { ethers } from 'ethers';

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

const result = await provider.send('eth_getLogs', [{"fromBlock": "0x3A2B5C0", "toBlock": "0x3A2B5C7", "address": "0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0"}]);
console.log('Result:', result);

Viem