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
Parameter
Type
Description
key
string
key holding the hash to set the field of.
field
string
field to set in the hash.
value
string
value to set the field to.
Returns
Type
Resolves with
Rejected when
Promise<boolean>
On success, the promise resolves with 1 if field is a new field in the hash and value was set, and with 0 if field already exists in the hash and no operation was performed.
Example
importredisfrom'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 =newredis.Client({
addrs: redis_addrs.split(',')||newArray('localhost:6379'),// in the form of 'host:port', separated by commas