rootSubscribe RPC Method

Parameters

This method does not accept any parameters

Returns

result

integer

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Notification Format:

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slot

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Request

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

const rpcSubscriptions = createSolanaRpcSubscriptions('');

async function main() {
    const abortController = new AbortController();

    const subscription = await rpcSubscriptions
        .rootNotifications()
        .subscribe({ abortSignal: abortController.signal });

    try {
        for await (const notification of subscription) {
            console.log("Updated root info: ", notification);
        }
    } catch (e) {
        console.error("Error in root subscription:", e);
    } finally {
        abortController.abort();
        console.log('Unsubscribed from root changes');
    }
}

main().catch(console.error);

const web3 = require("@solana/web3.js");
(async () => {
  const solanaConnection = new web3.Connection("https://docs-demo.solana-mainnet.quiknode.pro/", {
    wsEndpoint: "",
  });
  solanaConnection.onRootChange((rootInfo) =>
    console.log("Updated slot info: ", rootInfo)
  );
})();

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.root_subscribe()
        first_resp = await websocket.recv()
        subscription_id = first_resp.result
        async for idx, msg in enumerate(websocket):
            print(msg)

asyncio.run(main())

wscat -c  \ 
# wait for connection 
{"id":1,"jsonrpc":"2.0","method": "rootSubscribe" }

Response

{
  "jsonrpc": "2.0",
  "result": 0,
  "id": 1
}

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