slotUnsubscribe RPC Method

Parameters

number

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Returns

result

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Request

import { createSolanaRpcSubscriptions } from '@solana/kit';

const rpcSubscriptions = createSolanaRpcSubscriptions('');

async function main() {
    const abortController = new AbortController();
    
    const subscription = await rpcSubscriptions
        .slotNotifications()
        .subscribe({ abortSignal: abortController.signal });

    let count = 0;
    const maxNotifications = 5;

    try {
        for await (const notification of subscription) {
            console.log("Updated slot info: ", notification);
            count++;

            if (count >= maxNotifications) {
                console.log(`Received ${maxNotifications} notifications. Unsubscribing...`);
                break;
            }
        }
    } catch (e) {
        console.error(e);
    } finally {
        abortController.abort();
        console.log('Unsubscribed from slot changes');
    }
}

function unsubscribeAfterDelay(abortController: AbortController, delayMs: number) {
    setTimeout(() => {
        abortController.abort();
        console.log('Manually unsubscribed from slot changes after delay');
    }, delayMs);
}

main();

const web3 = require("@solana/web3.js");
(async () => {
  const solanaConnection = new web3.Connection("https://docs-demo.solana-mainnet.quiknode.pro/", {
    wsEndpoint: "",
  });
  solanaConnection.removeSlotChangeListener(0);
})();

import solana
import asyncio
from asyncstdlib import enumerate
from solana.rpc.websocket_api import connect

async def main():
    async with connect("") as websocket:
        await websocket.slot_subscribe()
        first_resp = await websocket.recv()
        subscription_id = first_resp.result
        async for idx, msg in enumerate(websocket):
            if idx == 3:
                break
            print(msg)
        await websocket.slot_unsubscribe(subscription_id)

asyncio.run(main())

wscat -c  \ 
# wait for connection 
{"id":1,"jsonrpc":"2.0","method": "slotUnsubscribe", "params": [0]}

Response

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

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