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Client.lindex(key)

Returns the specified element of the list stored at key. The index is zero-based. Negative indices can be used to designate elements starting at the tail of the list.

Parameters

ParameterTypeDescription
keystringkey holding the list to get the element of.

Returns

TypeResolves withRejected when
Promise<string>On success, the promise resolves with the requested element.If the list does not exist, or the index is out of bounds, 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
.rpush('mylist', 'first')
.then((_) => redisClient.rpush('mylist', 'second'))
.then((_) => redisClient.rpush('mylist', 'third'))
.then((_) => redisClient.lindex('mylist', 0))
.then((item) => {
if (item !== 'first') {
throw new Error('lindex operation should have returned first');
}
return redisClient.lrange('mylist', 1, 2);
});
}