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Client.expire(key, seconds)

Sets a timeout on key, after which the key will automatically be deleted. Note that calling Expire with a non-positive timeout will result in the key being deleted rather than expired.


keystringthe key to set the expiration of.
secondsnumberthe value in seconds to set the expiration to.


TypeResolves withRejected when
Promise<boolean>On success, the promise resolves with true if the timeout was set, and false if the timeout wasn't set.


import redis from 'k6/experimental/redis';
// Get the redis instance(s) address and password from the environment
const redis_addrs = __ENV.REDIS_ADDRS || '';
const redis_password = __ENV.REDIS_PASSWORD || '';
// Instantiate a new redis client
const redisClient = new redis.Client({
addrs: redis_addrs.split(',') || new Array('localhost:6379'), // in the form of 'host:port', separated by commas
password: redis_password,
export default async function () {
await redisClient.set('mykey', 'myvalue', 10);
await redisClient.expire('mykey', 100);
const ttl = await redisClient.ttl('mykey');
if (ttl <= 10 || ttl >= 100) {
throw new Error('mykey should have a ttl of 10 <= x < 100');