> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/somnia/eth_syncing-somnia.md).

# eth\_syncing - Somnia

Example code for the eth\_syncing JSON-RPC method. Complete guide on how to use eth\_syncing JSON-RPC in GetBlock Web3 documentation

This method returns the sync status of the Somnia node. If the node is fully synced, it returns false. If syncing, it returns an object with sync progress details.

## Parameters

* None

## Request Example

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

```bash
curl -X POST https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_syncing",
  "params": []
}'
```

{% endtab %}

{% tab title="JavaScript (Axios)" %}

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

const url = 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/';

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'eth_syncing',
  params: []
};

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

{% endtab %}

{% tab title="Python" %}

```python
import requests
import json

url = "https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/"

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "eth_syncing",
    "params": []
}

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",
        "id": "getblock.io",
        "method": "eth_syncing",
        "params": []
    });

    let response = client
        .post("https://shared.eu-central-1.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 (Synced)

```json
{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": false
}
```

## Response Example (Syncing)

```json
{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": {
    "startingBlock": "0x0",
    "currentBlock": "0x1a2b3c",
    "highestBlock": "0x1a2b40"
  }
}
```

## Response Parameters

| Parameter     | Type   | Description              |
| ------------- | ------ | ------------------------ |
| startingBlock | string | Block where sync started |
| currentBlock  | string | Current synced block     |
| highestBlock  | string | Estimated highest block  |

## Use Cases

* Check node readiness
* Monitor sync progress
* Health checks for applications
* Validate data reliability

## Error Handling

| Error Code | Description                             |
| ---------- | --------------------------------------- |
| -32603     | Internal error - node processing issues |

## SDK Integration

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

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

const provider = new ethers.JsonRpcProvider('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/');

const syncStatus = await provider.send('eth_syncing', []);
console.log(syncStatus);
```

{% endtab %}

{% tab title="Viem" %}

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

const client = createPublicClient({
  transport: http('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/')
});

const syncStatus = await client.request({
  method: 'eth_syncing',
  params: []
});
console.log(syncStatus);
```

{% endtab %}
{% endtabs %}