# eth\_getLogs - Celo

This method returns an array of all logs matching a given filter object on the Celo network. This is essential for tracking events emitted by smart contracts, monitoring stablecoin transfers (cUSD, cEUR), 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", "earliest") |
| toBlock   | string       | No       | Ending block (hex or "latest", "earliest")   |
| address   | string/array | No       | Contract address(es) to filter               |
| topics    | array        | No       | Array of topic filters                       |
| blockHash | string       | No       | Restrict to single block by hash             |

## Request Example

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

```bash
curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_getLogs",
  "params": [
    {
      "fromBlock": "0x1d9f000",
      "toBlock": "latest",
      "address": "0x765DE816845861e75A25fCA122bb6898B8B1282a",
      "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]
    }
  ]
}'
```

{% endcode %}
{% endtab %}

{% tab title="JavaScript (Axios)" %}
{% code title="eth\_getLogs.js" %}

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

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

// Track cUSD Transfer events
const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'eth_getLogs',
  params: [
    {
      fromBlock: '0x1d9f000',
      toBlock: 'latest',
      address: '0x765DE816845861e75A25fCA122bb6898B8B1282a', // cUSD contract
      topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef'] // Transfer event
    }
  ]
};

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" %}
{% code title="eth\_getLogs.py" %}

```python
import requests
import json

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

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "eth_getLogs",
    "params": [
        {
            "fromBlock": "0x1d9f000",
            "toBlock": "latest",
            "address": "0x765DE816845861e75A25fCA122bb6898B8B1282a",
            "topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"]
        }
    ]
}

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

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

## Response Example

{% code title="response.json" %}

```json
{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": [
    {
      "address": "0x765DE816845861e75A25fCA122bb6898B8B1282a",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x000000000000000000000000742d35cc6634c0532925a3b844bc9e7595f8bb45",
        "0x0000000000000000000000008626f6940e2eb28930efb4cef49b2d1f2c9c1199"
      ],
      "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",
      "blockNumber": "0x1d9f2a8",
      "transactionHash": "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b",
      "transactionIndex": "0x0",
      "blockHash": "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
      "logIndex": "0x0",
      "removed": false
    }
  ]
}
```

{% endcode %}

## Response Definition

| Field  | Type  | Description          |
| ------ | ----- | -------------------- |
| result | array | Array of log objects |

## Use Cases

* Track cUSD/cEUR stablecoin transfers
* Monitor ERC-20 token transfers
* Index DeFi protocol events
* Build event-driven applications
* Create analytics dashboards

## Error Handling

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

## SDK Integration

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

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

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

// Track cUSD transfers
const logs = await provider.getLogs({
  fromBlock: 31000000,
  toBlock: 'latest',
  address: '0x765DE816845861e75A25fCA122bb6898B8B1282a',
  topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef']
});
console.log(logs);
```

{% endcode %}
{% endtab %}

{% tab title="ContractKit" %}
{% code title="contractkit-example.js" %}

```javascript
const { newKit } = require('@celo/contractkit');

const kit = newKit('https://go.getblock.io/<ACCESS-TOKEN>/');

const logs = await kit.web3.eth.getPastLogs({
  fromBlock: 31000000,
  toBlock: 'latest',
  address: '0x765DE816845861e75A25fCA122bb6898B8B1282a',
  topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef']
});
console.log(logs);
```

{% 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/celo/eth_getlogs-celo.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.