# debug\_traceBlockByNumber - Celo

This method traces all transactions in a block by its number on the Celo network. It returns detailed execution information for every transaction in the block.

## Parameters

| Parameter   | Type   | Required | Description                     |
| ----------- | ------ | -------- | ------------------------------- |
| blockNumber | string | Yes      | Block number in hex or "latest" |
| options     | object | No       | Tracer configuration options    |

## 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": "debug_traceBlockByNumber",
  "params": ["0x1d9f2a8", {"tracer": "callTracer"}]
}'
```

{% endcode %}
{% endtab %}

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

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

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

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'debug_traceBlockByNumber',
  params: ['0x1d9f2a8', { tracer: 'callTracer' }]
};

axios.post(url, payload, {
  headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(JSON.stringify(response.data, null, 2)))
.catch(error => console.error(error));
```

{% endcode %}
{% endtab %}

{% tab title="Python" %}
{% code title="trace\_block.py" %}

```python
import requests
import json

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

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "debug_traceBlockByNumber",
    "params": ["0x1d9f2a8", {"tracer": "callTracer"}]
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(json.dumps(response.json(), indent=2))
```

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

## Response Example

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

```json
{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": [
    {
      "txHash": "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b",
      "result": {
        "type": "CALL",
        "from": "0x742d35cc6634c0532925a3b844bc9e7595f8bb45",
        "to": "0x765de816845861e75a25fca122bb6898b8b1282a",
        "gasUsed": "0x5208"
      }
    }
  ]
}
```

{% endcode %}

## Returns

| Field  | Type  | Description                 |
| ------ | ----- | --------------------------- |
| result | array | Array of transaction traces |

## Use Cases

* Analyze entire block execution
* Debug block-level issues
* Build analytics tools
* Index transaction traces

## Error Handling

| Error Code  | Description     |
| ----------- | --------------- |
| -32602      | Invalid params  |
| -32603      | Internal error  |
| null result | Block not found |


---

# 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/debug_traceblockbynumber-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.