Build an API with Node.js and a Redis Client

Connect Redis using Node.js

To recap, we’ve discussed a lot of Redis commands to perform multiple operations on strings, lists, sets, and transactions. Till now, we’ve executed the commands on the terminal, but in reality, we’ll use Redis with our applications where we need to connect and execute the commands using Node.js.

We’ll use an npm package, redis, that will help our Node.js applications to connect with Redis and perform different operations with it. For now, we’ll only focus on how to connect with Redis using the redis package. The most important step to connect to the Redis server is to create a Redis client instance that will be used to communicate and execute all the Redis commands from our Node.js code. We’ll use the createClient() function to create a Redis client object. We can pass different parameters to this function to customize its behavior, such as specifying a different host, port, or password for the Redis server. An example is shown below: