lua-redisHow to check if key exists
local redis = (require 'redis').connect('127.0.0.1', 6379)
local does_exist = redis:exists('key')ctrl + crequire 'redis'load Redis module for Lua | connectconnect to Redis server |
'127.0.0.1', 6379Redis host and port to connect to | :existswill return |
'key'key name to check existence of | does_existwill contain |
Usage example
local redis = (require 'redis').connect('127.0.0.1', 6379)
redis:set('key', 'val')
local exists = redis:exists('key')
print(exists)
local exists = redis:exists('key1')
print(exists)output
true
false