slotsUpdatesUnsubscribe – Solana

The slotsUpdatesUnsubscribe RPC Solana method allows clients to unsubscribe from slot-update notifications.

This method is essential for managing WebSocket subscriptions efficiently, ensuring that applications do not receive unnecessary updates once they are no longer needed.

By using slotsUpdatesUnsubscribe, applications can prevent redundant data from being processed, reducing network traffic and improving performance. This is particularly useful in scenarios where real-time monitoring of blockchain slots is needed for analytics, transaction tracking, or validator operations.

Supported Networks

• Mainnet

• Devnet

Parameters

• number (required): The subscription ID to cancel.

Result

Returns a boolean value indicating whether the unsubscription was successful.

Result Format

• bool: true if successfully unsubscribed, false otherwise.

Request Example

API Endpoints

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

JSON-RPC Request

wss

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

Response

A successful request returns a confirmation of the unsubscription.

Example Response

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

In this response:

• result: true confirms that the subscription has been successfully removed.

Error Handling

Common slotsUpdatesUnsubscribe error scenarios:

• Invalid subscription ID: If the given subscription ID does not exist or is already unsubscribed.

• Network issues: Connectivity problems with the Solana JSON-RPC API.

Example Error Response

{
  "jsonrpc": "2.0",
  "error": {
    "code": -32000,
    "message": "Invalid subscription ID"
  },
  "id": 1
}

Use Cases

The Solana slotsUpdatesUnsubscribe method is useful for:

• Managing WebSocket connections efficiently.

• Reducing unnecessary WebSocket traffic.

• Optimizing application performance by removing redundant slot update notifications.

Code slotsUpdatesUnsubscribe Example – Web3 Integration

JavaScript

const WebSocket = require('ws');

const ws = new WebSocket("wss://go.getblock.io/<ACCESS-TOKEN>/");

ws.on('open', () => {
  const payload = {
    jsonrpc: "2.0",
    id: 1,
    method: "slotsUpdatesUnsubscribe",
    params: [0]
  };
  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");
});

Integration with Web3

By integrating Web3 slotsUpdatesUnsubscribe into Solana's Core API, developers can:

• Optimize WebSocket communication.

• Free up resources by unsubscribing from unnecessary updates.

• Improve blockchain tracking efficiency.

• Ensure only relevant slot updates are received, enhancing application responsiveness.

This method is a key component of the Core API, allowing developers to manage block and transaction update subscriptions effectively in Solana-based applications.