This is documentation for the next version of K6. For the latest stable release, go to the latest version.
Client.hsetnx(key, field, value)
Sets the specified field in the hash stored at key
to value
, only if field
does not yet exist. If key
does not exist, a new key holding a hash is created. If field
already exists, this operation has no effect.
Parameters
Returns
Example
import redis from 'k6/experimental/redis';
// Instantiate a new redis client
const redisClient = new redis.Client('redis://localhost:6379');
export default async function () {
await redisClient.hsetnx('myhash', 'myfield', 'myvalue');
await redisClient.hsetnx('myhash', 'myotherfield', 'myothervalue');
const set = await redisClient.hsetnx('myhash', 'myfield', 'mynewvalue');
if (set === true) {
throw new Error('hsetnx should have failed on existing field');
}
}