Use 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 HTTP 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 a 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.
To further learn about how to use Node.js Sessions, refer here.
Before getting started with NCache in Node.js, take the following prerequisites under consideration:
- Node.js version 14.15.3 or above is installed with Chocolatey.
- JDK 9 is installed.
- Environment Variable for Java 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 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 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 cacheName to the cache you created before.
Step 4: Build Project and Use Sample
After configuring the cache settings, build the sample application for further use.
Step 3: Visualize Output
Play around with the output being shown. You will see that the data is being stored in session according to your given inputs.