Subscription Management System with NodeJS and ExpressJS

In this article, we’ll walk through the step-by-step process of creating a Subscription Management System with NodeJS and ExpressJS. This application will provide users with the ability to subscribe to various plans, manage their subscriptions, and include features like user authentication and authorization using JWT (JSON Web Tokens). We'll use MongoDB as our database to store user information and subscription plans.

Prerequisites:

• NodeJS
• ExpressJS
• MongoDB

Approach for Creating Subscription Management System with NodeJS and ExpressJS

• Identify key features like user User authentication and authorization, Subscription plan management (CRUD operations), User subscription management, and Secure APIs using JWT (JSON Web Tokens).
• Install Node.js, npm, ExpressJS, and other project dependencies.
• Create a new project directory and initialize it.
• Ensure MongoDB is installed and running locally or use a cloud-based MongoDB instance. Create a database for your Subscription Management System.
• Create Mongoose models to represent User and Subscription Plan entities.
• Implement Authentication, Authorization Middleware, Subscription Plan Management.

Steps to Create the NodeJS App and Installing Module

Step 1: Create a NodeJS project using the following command.

npm init -y

Step 2: Install Express.js and other necessary dependencies.

npm install express mongoose jsonwebtoken bcryptjs dotenv 

Step 3: Create folders for different parts of the application such as models, routes, and middleware. Inside each folder, create corresponding files for different components of the application.

Step 4: Set up a MongoDB database either locally or using a cloud-based service like MongoDB Atlas. Define Mongoose models for the data entities such as User, SubscriptionPlan.

Project Structure:

The updated dependencies in package.json file will look like:

"dependencies": {
 "bcryptjs": "^2.4.3",
 "dotenv": "^16.4.5",
 "express": "^4.19.2",
 "jsonwebtoken": "^9.0.2",
 "mongoose": "^8.3.0"
 }

Example: Below is an example of Travel Planning App with NodeJS and ExpressJS.

Start your server using the following command:

node app.js

Output: