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.

參數

此方法不接受任何參數

退貨

slotsUpdatesNotification

物件

載入中...

插槽

整數

載入中...

時間戳記

整數

載入中...

類型

字串

載入中...

統計數據

物件

載入中...

numTransactionEntries

整數

載入中...

numSuccessfulTransactions

整數

載入中...

numFailedTransactions

整數

載入中...

maxTransactionsPerEntry

整數

載入中...

請求

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import { createSolanaRpcSubscriptions_UNSTABLE } from '@solana/kit';
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const rpcSubscriptions = createSolanaRpcSubscriptions_UNSTABLE('');
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async 函式 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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    try {
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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 函式 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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    try {
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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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回應

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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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