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node-redis/examples/blocking-list-pop.js
Shaya Potter b2d35c5286 V5 bringing RESP3, Sentinel and TypeMapping to node-redis
RESP3 Support
   - Some commands responses in RESP3 aren't stable yet and therefore return an "untyped" ReplyUnion.
 
Sentinel

TypeMapping

Correctly types Multi commands

Note: some API changes to be further documented in v4-to-v5.md
2024-10-15 17:46:52 +03:00

31 lines
801 B
JavaScript

// This example shows how to use the blocking LPUSH command.
// This code shows how to run with isolation the blPop Command to block the script while waiting for a value to be pushed to the list.
// The script will be blocked until the LPUSH command is executed.
// After which we log the list and quit the client.
import { createClient, commandOptions } from 'redis';
const client = createClient();
await client.connect();
const keyName = 'keyName';
const blpopPromise = client.blPop(
commandOptions({ isolated: true }),
keyName,
0
);
await client.lPush(keyName, 'value');
const listItem = await blpopPromise;
console.log('blpopPromise resolved');
// listItem will be:
// {"key":"keyName","element":"value"}
console.log(`listItem is '${JSON.stringify(listItem)}'`);
client.destroy();