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Client.lpush(key, values)

Inserts all the specified values at the head of the list stored at key. If key does not exist, it is created as empty list before performing the push operations.

Parameters

ParameterTypeDescription
keystringkey holding the list to left push to.
valuesany[]values to push to the list.

Returns

TypeResolves withRejected when
Promise<number>On success, the promise resolves with the length of the list after the push.When key holds a value that is not a list, 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 function () {
redisClient
.lpush('mylist', 'first')
.then((_) => redisClient.rpush('mylist', 'second'))
.then((_) => redisClient.lpop('mylist'))
.then((item) => redisClient.rpush('mylist', item))
.then((_) => redisClient.rpop('mylist'));
}