Node App to test valid credit card number

Project Description: This project contains two folders: UI and server. The UI folder contains a React app, while the server folder contains an Express Node.js app. The purpose of the project is to test valid credit card numbers.

Running the Server

1. Open your terminal and navigate to the server folder using the command: cd server

2. Install the dependencies by running: yarn install

3. Start the Express service by running: node index.js

4. The server will now run on port 3001. If you want to change the port, modify the following line in index.js: const port = 3001;

NOTE: If you change the port, don't forget to update it in UI/src/App.js as well.

Running the UI

1. Open another terminal window and navigate to the UI folder using the command: cd UI

2. Use the same package manager you used for the server (either npm or yarn) and start the development server:

npm start
# or
yarn start

3. The React app will now run on http://localhost:3000 in your browser.

Important Note:

If the UI makes requests to the server running on a different port (e.g., UI on port 3000, server on port 3001), you may need to handle CORS. Consider using the cors package in Express to allow cross-origin requests from the UI.