slotsUpdatesSubscribe RPC Method

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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.

参数

该方法不接受任何参数

退货

slotsUpdatesNotification

对象

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插槽

整数

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时间戳

整数

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类型

字符串

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统计数据

对象

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numTransactionEntries

整数

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numSuccessfulTransactions

整数

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numFailedTransactions

整数

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maxTransactionsPerEntry

整数

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请求

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import { createSolanaRpcSubscriptions_UNSTABLE } from '@solana/kit';
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const rpcSubscriptions = createSolanaRpcSubscriptions_UNSTABLE('');
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async 函数 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 函数 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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wscat -c  \
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# 等待连接 
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{"id":1,"jsonrpc":"2.0","method":"slotsUpdatesSubscribe"}

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wscat -c  \
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# 等待连接 
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{"id":1,"jsonrpc":"2.0","method":"slotsUpdatesSubscribe"}

回复

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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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