In the digital age, e-wallets are becoming an essential part of our financial ecosystem. Building a robust e-wallet REST API can help you manage transactions seamlessly. In this guide, we’ll explore how to create an E-Wallet API using Node.js, Express, and MongoDB. Grab your virtual toolbox, and let’s dive in!

Requirements

• Node.js v7.6+
• Docker
• Yarn

Getting Started

Follow these steps to set up your E-Wallet API:

1. Clone the repository:

   git clone https://github.com/mmucito/ewallet-rest-api.git
   cd ewallet-rest-api

2. Install Yarn:

   npm install -g yarn

3. Install dependencies:

   yarn

4. Set environment variables:

   cp .env.example .env

Running Your API

Now that you have set everything up, let’s run your API:

Locally

yarn dev

In Production

yarn start

API Reference

To find more about the API, refer to the API Documentation.

API Endpoints

Access the API at: ewallet-rest-api.herokuapp.com

Testing Your API Locally

Let’s walk through the basic functionalities of your E-Wallet API:

1. Create a Customer

curl -X POST http://localhost:3000/v1/auth/register -H "cache-control: no-cache" -H "content-type: application/x-www-form-urlencoded" -d "email=jhon_doe%40gmail.com&password=123456&name=Jhon%20Doe"

2. Login

curl -X POST http://localhost:3000/v1/auth/login -H "cache-control: no-cache" -H "content-type: application/x-www-form-urlencoded" -d "email=jhon_doe%40gmail.com&password=123456"

3. Get eWallet Balance

curl -X GET http://localhost:3000/v1/ewallet/balance -H "authorization: Bearer YOUR_JWT_TOKEN"

4. Make a Deposit

curl -X POST http://localhost:3000/v1/ewallet/deposit -H "authorization: Bearer YOUR_JWT_TOKEN" -d "amount=10&card=4111111111111111"

5. Get eWallet Transactions

curl -X GET http://localhost:3000/v1/ewallet/transactions -H "authorization: Bearer YOUR_JWT_TOKEN"

Understanding the Code with an Analogy

Imagine you are managing a busy restaurant where customers order meals (transactions). Each meal represents data, such as user profiles, balances, and transaction records that your API needs to handle. Your Node.js application acts as the kitchen staff, taking orders (requests) from waiters (clients), preparing meals (processing data), and serving them back to the waiters (responding to requests). The MongoDB database is akin to the pantry, storing all the ingredients (data) necessary for your kitchen staff to operate efficiently. Just like a well-organized kitchen ensures a smooth dining experience, a well-structured API guarantees seamless transaction handling for your users.

Troubleshooting

If you encounter any issues, here are some troubleshooting ideas:

• Ensure your server is running and accessible on the specified port.
• Double-check the endpoints and parameters for accuracy.
• Make sure your JWT token is valid and not expired.
• Check your .env file for proper configuration.

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Conclusion

You have successfully built an E-Wallet REST API using Node.js, Express, and MongoDB! With the information provided here, you can enhance, debug, and maintain your API efficiently.

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.