slotsUpdatesSubscribe RPC Method

As of May 1, 2026, this WebSocket method is billed based on metered data usage: 0.1 MB = 15 API credits. Learn more about WebSocket billing.

The Solana Kit example uses createSolanaRpcSubscriptions_UNSTABLE because the Kit API for slot update subscriptions is currently experimental and the implementation may change. The slotsUpdatesSubscribe method itself is fully supported by the Quicknode WebSocket API.

Parameter

Diese Methode akzeptiert keine Parameter.

Rücksendungen

slotsUpdatesNotification

Objekt

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Steckplatz

Ganzzahl

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Zeitstempel

Ganzzahl

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Typ

Zeichenkette

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Statistiken

Objekt

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numTransactionEntries

Ganzzahl

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numSuccessfulTransactions

Ganzzahl

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numFailedTransactions

Ganzzahl

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maxTransactionsPerEntry

Ganzzahl

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Anfrage

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import { createSolanaRpcSubscriptions_UNSTABLE } from '@solana/kit';
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const rpcSubscriptions = createSolanaRpcSubscriptions_UNSTABLE('');
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async Funktion main() {
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    const abortController = new AbortController();
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    const slotsUpdatesNotification = await rpcSubscriptions
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        .slotsUpdatesNotifications()
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        .subscribe({ abortSignal: abortController.signal });
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    versuchen {
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        for await (const notification of slotsUpdatesNotification) {
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            console.log('type:', notification.type);
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            console.log('slot:', notification.slot);
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            console.log('timestamp:', notification.timestamp);
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        }
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    } catch (e) {
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        console.error(e);
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    } finally {
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        abortController.abort();
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        console.log('Unsubscribed from slot updates');
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    }
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}
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main();
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import { createSolanaRpcSubscriptions_UNSTABLE } from '@solana/kit';
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const rpcSubscriptions = createSolanaRpcSubscriptions_UNSTABLE('');
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async Funktion main() {
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    const abortController = new AbortController();
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    const slotsUpdatesNotification = await rpcSubscriptions
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        .slotsUpdatesNotifications()
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        .subscribe({ abortSignal: abortController.signal });
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    versuchen {
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        for await (const notification of slotsUpdatesNotification) {
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            console.log('type:', notification.type);
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            console.log('slot:', notification.slot);
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            console.log('timestamp:', notification.timestamp);
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        }
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    } catch (e) {
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        console.error(e);
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    } finally {
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        abortController.abort();
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        console.log('Unsubscribed from slot updates');
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    }
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}
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main();
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wscat -c  \
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# wait for connection 
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{"id":1,"jsonrpc":"2.0","method":"slotsUpdatesSubscribe"}

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

Antwort

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

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

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