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⚠️ This is the archived documentation for k6 v0.45. Go to the latest version.

Client.set(key, value, expiration)

Set the value of a key, with a time to live equal to the expiration time parameter (in seconds). If the key already holds a value, it is overwritten.

Parameters

ParameterTypeDescription
keystringthe key to set
valuestring, number, or booleanthe value to set
expirationintegerthe time to live in seconds. the 0 value indicates no expiration.

Returns

TypeResolves withRejected when
Promise<string>On success, the promise resolves with 'OK'.If the provided value is not of a supported type, the promise is rejected with an error.

Example

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', 0);
const exists = await redisClient.exists('mykey');
if (exists === false) {
throw new Error('mykey should exist');
}
const value = await redisClient.get('mykey');
console.log(`set key 'mykey' to value: ${value}`)
await redisClient.del('mykey');
}