# eth\_getLogs - BSC

This method returns an array of all logs matching a given filter object on the BNB Smart Chain. This is essential for tracking events emitted by smart contracts, monitoring BEP-20 transfers, and building event-driven applications.

## Parameters

| Parameter    | Type   | Required | Description        |
| ------------ | ------ | -------- | ------------------ |
| filterObject | object | Yes      | The filter options |

### Filter Object

| Field     | Type         | Required | Description                      |
| --------- | ------------ | -------- | -------------------------------- |
| fromBlock | string       | No       | Starting block (hex or "latest") |
| toBlock   | string       | No       | Ending block (hex or "latest")   |
| address   | string/array | No       | Contract address(es)             |
| topics    | array        | No       | Event topic filters              |
| blockHash | string       | No       | Specific block hash              |

## Request Example

{% tabs %}
{% tab title="cURL" %}

```bash
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": "latest",
        "toBlock": "latest",
        "address": "0x55d398326f99059fF775485246999027B3197955",
        "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]
    }],
    "id": "getblock.io"
}'
```

{% endtab %}

{% tab title="JavaScript (Axios)" %}
{% code title="request.js" %}

```javascript
const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
    jsonrpc: '2.0',
    method: 'eth_getLogs',
    params: [{
        fromBlock: 'latest',
        toBlock: 'latest',
        address: '0x55d398326f99059fF775485246999027B3197955',
        topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef']
    }],
    id: 'getblock.io'
};

axios.post(url, payload, {
    headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(response.data))
.catch(error => console.error(error));
```

{% endcode %}
{% endtab %}

{% tab title="Python" %}

```python
import requests

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

payload = {
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [{
        "fromBlock": "latest",
        "toBlock": "latest",
        "address": "0x55d398326f99059fF775485246999027B3197955",
        "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]
    }],
    "id": "getblock.io"
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(response.json())
```

{% endtab %}

{% tab title="Rust" %}

```rust
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": "latest",
            "toBlock": "latest",
            "address": "0x55d398326f99059fF775485246999027B3197955"
        }],
        "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(())
}
```

{% endtab %}
{% endtabs %}

## Response Example

```json
{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": [{
        "address": "0x55d398326f99059ff775485246999027b3197955",
        "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000abc123...",
            "0x000000000000000000000000def456..."
        ],
        "data": "0x00000000000000000000000000000000000000000000000000000000000f4240",
        "blockNumber": "0x2625a01",
        "transactionHash": "0x123...",
        "transactionIndex": "0x0",
        "blockHash": "0x456...",
        "logIndex": "0x0",
        "removed": false
    }]
}
```

## Response Parameters

| Parameter       | Type   | Description      |
| --------------- | ------ | ---------------- |
| address         | string | Contract address |
| topics          | array  | Event topics     |
| data            | string | Event data       |
| blockNumber     | string | Block number     |
| transactionHash | string | Transaction hash |

## Use Cases

* Track BEP-20 token transfers
* Monitor PancakeSwap swaps
* Index DeFi protocol events
* Build analytics dashboards

## Error Handling

| Error Code | Description                       |
| ---------- | --------------------------------- |
| -32602     | Invalid params - malformed filter |
| -32005     | Query returned too many results   |
| -32603     | Internal error                    |

## SDK Integration

{% tabs %}
{% tab title="Ethers.js" %}
{% code title="ethers.js" %}

```javascript
const { ethers } = require('ethers');

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

const logs = await provider.getLogs({
    address: '0x55d398326f99059fF775485246999027B3197955',
    topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef'],
    fromBlock: 40000000,
    toBlock: 'latest'
});
console.log('Found logs:', logs.length);
```

{% endcode %}
{% endtab %}

{% tab title="Viem" %}
{% code title="viem.js" %}

```javascript
import { createPublicClient, http } from 'viem';
import { bsc } from 'viem/chains';

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

const logs = await client.getLogs({
    address: '0x55d398326f99059fF775485246999027B3197955',
    fromBlock: 40000000n,
    toBlock: 'latest'
});
console.log('Found logs:', logs.length);
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.getblock.io/api-reference/bnb-smart-chain-bsc/eth_getlogs-bsc.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.