NCache for Node.js Caching

After successfully configuring NCache, you are now ready to use it within your Node.js applications. NCache being an in-memory distributed cache provides the feature of Sessions with Node.js for high performance, efficiency, and scalability.

As HTTPs is a stateless protocol, a web application needs to track requests coming from the same user and store that session related data somewhere. By default, session data is usually stored in memory on the web server. Node.js uses express-session middleware to manage sessions.

NCache provides a session store for session data storage in Node.js. If your application is running in a web server farm and you need reliable and scalable storage for your session persistence, then NCache is the best available option. Using NCache, your cache cluster nodes can cater to extreme transaction loads, with which you can achieve as much scalability as possible.

Important

Before getting started with NCache in Node.js, take the following prerequisites under consideration:

Node.js version 14.15.3 or above is installed.
JDK 11 is installed.
The Environment Variable for Java Home is set.

NCache Demonstration using Sample Application

Follow the steps mentioned here to see how NCache is used to perform various operations on your application's data:

Step 1: Download Sample from GitHub

Go to the NCache repository on GitHub and download the entire repository or the sample you are interested in.

Step 2: Launch the Project

Launch your Node.js sample application in a Node.js IDE of your choice. For example, Microsoft Visual Studio Code.

Step 3: Configure Settings

After launching the project, locate and open the app-config.json file where you have to change the name of the cache to the cache you created before.

Step 4: Build the Project and Use Sample

After configuring the cache settings, build the sample application for further use.

Step 5: Visualize Output

Play around with the output. You will see that the data is being stored in session according to your given inputs.