# programUnsubscribe – Solana

{% hint style="success" %}
The **programUnsubscribe** RPC Solana method stops notifications for program-owned accounts by using a subscription ID.
{% endhint %}

It is crucial for Web3 applications that handle dynamic data streams and need efficient resource management.

### Supported Networks

* Mainnet

### Parameters

#### Required Parameter

* **`number`** (required): The subscription ID of the program-owned account to unsubscribe.

### Result

The response returns a boolean value indicating whether the unsubscribe operation was successful.

#### Result Format

* `bool`: `true` if the unsubscribe was successful; otherwise, `false`.

### Request Example

#### API Endpoints

```json
wss://go.getblock.io/<ACCESS-TOKEN>/
```

#### JSON-RPC Request

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

```json
wscat -c "wss://go.getblock.io/<ACCESS-TOKEN>/" --exec '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "programUnsubscribe",
  "params": [0]
}'
```

{% endtab %}
{% endtabs %}

### Response

A successful request returns a boolean value.

#### Example Response

```json
{
  "jsonrpc": "2.0",
  "result": true,
  "id": 1
}
```

In this response:

* `result`: `true` indicates the unsubscribe operation was successful.

### Error Handling

Common programUnsubscribe error scenarios:

* **Invalid subscription ID**: The provided ID does not correspond to an active subscription.
* **Network issues**: Problems with the Solana JSON-RPC API endpoints.

#### Example Error Response

```json
{
  "jsonrpc": "2.0",
  "error": {
    "code": -32602,
    "message": "Invalid subscription ID"
  },
  "id": 1
}
```

### Use Cases

The Solana programUnsubscribe method is essential for:

* Managing network resources by terminating unused subscriptions.
* Optimizing dApp performance.
* Reducing network bandwidth consumption.

### Code programUnsubscribe Example – Web3 Integration

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

```javascript
const WebSocket = require('ws');

const url = "wss://go.getblock.io/<ACCESS-TOKEN>/";
const payload = {
  jsonrpc: "2.0",
  id: 1,
  method: "programUnsubscribe",
  params: [0]
};

const ws = new WebSocket(url);

ws.on('open', () => {
  ws.send(JSON.stringify(payload));
});

ws.on('message', (data) => {
  console.log("Unsubscribe Response:", JSON.parse(data));
});

ws.on('error', (error) => {
  console.error("WebSocket error:", error.message);
});

ws.on('close', () => {
  console.log("WebSocket connection closed");
});
```

{% endtab %}
{% endtabs %}

### Integration with Web3

By integrating Web3 programUnsubscribe into Solana's Core API, developers can efficiently manage subscription lifecycles, improve dApp performance, and optimize network resource utilization.


---

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