See also slotSubscribe | Solana.

​
Get you own node endpoint today

Start for free and get your app to production levels immediately. No credit card required.You can sign up with your GitHub, X, Google, or Microsoft account.

​
Parameters

  • integer - The ID of the subscription that you want to cancel. This is the subscription ID that was returned when calling slotSubscribe.

​
Response

  • boolean - A boolean value indicating if the subscription was removed successfully. true if removed successfully, false if not.

​
slotUnsubscribe code examples

Note that subscriptions require a WebSocket connection. You can use a WebSocket client library for your programming language of choice to interact with Solana’s WebSocket API.
$ wscat -c YOUR_CHAINSTACK_WEBSOCKET_ENDPOINT
# Wait for the connection to be established

Connected (press CTRL+C to quit)

> {"jsonrpc":"2.0","id":1,"method":"slotUnsubscribe","params":[0]}

​
Use case

The slotUnsubscribe method is important for proper resource management in applications that use slot subscriptions. Common use cases include:
  • Cleanup: Remove slot subscriptions when monitoring is no longer needed
  • Resource management: Free up system resources by unsubscribing from unused slot notifications
  • Connection handling: Clean up subscriptions during application shutdown or WebSocket disconnections
  • Subscription rotation: Remove old subscriptions when establishing new ones
By properly managing slot subscriptions through unsubscribe calls, applications can maintain optimal performance and prevent resource leaks.