eth_getLogs - opBNB

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

This method returns the logs that match a given filter. Filters specify a block range, an address, and indexed topics, enabling efficient retrieval of contract events, such as ERC-20 transfers or Uniswap-style swaps.

Parameters

Parameter

Type

Required

Description

filterObject

object

Yes

Filter with optional fromBlock, toBlock, address (single or array), topics (array of topic filters)

Request Example

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": "0x2d4e89f",
            "toBlock": "latest",
            "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
            ]
        }
    ],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
        {
            "fromBlock": "0x2d4e89f",
            "toBlock": "latest",
            "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
            ]
        }
    ],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
        {
            "fromBlock": "0x2d4e89f",
            "toBlock": "latest",
            "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
            ]
        }
    ],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "eth_getLogs",
        "params": [
                {
                        "fromBlock": "0x2d4e89f",
                        "toBlock": "latest",
                        "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
                        "topics": [
                                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
                        ]
                }
        ],
        "id": "getblock.io"
});

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": [
        {
            "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
            "blockHash": "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
            "blockNumber": "0x2d4e8a3",
            "data": "0x0000000000000000000000000000000000000000000000056bc75e2d63100000",
            "logIndex": "0x0",
            "removed": false,
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x0000000000000000000000009e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
                "0x000000000000000000000000d85498dbeaeb1df24be52eed4f52eac2fbd56245"
            ],
            "transactionHash": "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b",
            "transactionIndex": "0x0"
        }
    ]
}

Response Parameters

Field

Type

Description

result

array

Array of log objects matching the filter

result[].address

string

Contract address that emitted the log

result[].topics

array of string

Indexed event topics; topic 0 is typically the event signature hash

result[].data

string

Non-indexed event data (ABI-encoded)

result[].blockNumber

string

Block number containing the log

result[].transactionHash

string

Hash of the transaction that emitted the log

result[].removed

boolean

true if the log was removed due to a reorg

Use Cases

Indexing ERC-20 / BEP-20 transfers
Tracking DEX swap events for analytics
Building real-time event-driven dApps
Backfilling historical contract activity

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid <ACCESS-TOKEN>

-32602

Invalid params

Request parameters are missing or malformed

-32601

Method not found

The method is not supported by this node

429

Too Many Requests

Rate limit exceeded for your plan

-32005

Limit exceeded

Block range or returned result set exceeds the provider's limit; narrow your filter

SDK Integration

import { ethers } from 'ethers';

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

// Most methods are exposed directly on the provider.
// For raw access, use provider.send(method, params).
const result = await provider.send('eth_getLogs', [{"fromBlock": "0x2d4e89f", "toBlock": "latest", "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2", "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}]);
console.log(result);

import { createPublicClient, http } from 'viem';
import { opBNB } from 'viem/chains';

const client = createPublicClient({
    chain: opBNB,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const result = await client.request({ method: 'eth_getLogs', params: [{"fromBlock": "0x2d4e89f", "toBlock": "latest", "address": "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2", "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]}] });
console.log(result);

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Last updated 21 days ago

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