Building a MEAN Stack Project with Angular 15, MongoDB, Express.js

Angular 15 is the latest version of the popular front-end framework, and it offers a ton of features and improvements for building modern web applications. In this article, we will look at how to build a MEAN (MongoDB, Express.js, Angular, Node.js) stack project from scratch, including setting up a Restful API using Express.js and MongoDB as the database.

1. Setting up the Environment

First, make sure you have Node.js and npm installed on your machine. You can then install Angular 15 using the following command:

npm install -g @angular/cli@15

2. Creating the Angular Application

Once Angular 15 is installed, you can create a new Angular project using the following command:

ng new mean-stack-project

3. Setting up the Restful API with Express.js

Next, we will set up the back-end of our application using Express.js to create a Restful API. First, create a new directory for the server-side code:

mkdir server

Then, navigate to the new directory and initialize a new Node.js package:

cd server
npm init -y

Now, install the necessary dependencies for the server:

npm install express mongoose body-parser

After installing the dependencies, create a new file called server.js and start building your REST API with Express.js. This will include defining routes, handling requests, and interacting with the MongoDB database using Mongoose.

4. Integrating Angular with the Restful API

With the back-end API in place, you can now integrate it with the Angular front-end. Use Angular services to make HTTP requests to the API and fetch or send data to the server. You can also use Angular forms to submit data to the API and display the results in your application.

5. Connecting to MongoDB

For the database, we will use MongoDB, a popular NoSQL database. You can create a new MongoDB database and connect to it using Mongoose, allowing you to define data models, perform CRUD operations, and handle data persistence for your application.

6. Testing and Deployment

Once your MEAN stack project is complete, you can test it locally and then deploy it to a server or cloud platform. You can use services like Heroku, AWS, or Google Cloud to host your application and make it accessible to users on the web.

Building a MEAN stack project with Angular 15, Restful API, and MongoDB can be a rewarding experience and a great way to learn modern web development. With the power of these technologies, you can create dynamic and responsive web applications that can scale and perform well.