Last updated on January 3rd, 2024 at 11:20 am
What is MEAN Stack?
- MongoDB: A NoSQL database that stores data in JSON-like documents.
- Express.js: A lightweight web framework for Node.js.
- AngularJS: A front-end web application framework.
How Does the MEAN Stack Work?
MongoDB: A NoSQL database that stores data in a flexible, document-oriented format, using JSON-like documents.
Express.js: A web application framework for Node.js that simplifies the process of building server-side applications and APIs. It handles routing, middleware, and HTTP requests.
AngularJS (now known as Angular): A powerful front-end framework that enables the creation of dynamic and interactive web applications. It handles the presentation layer and provides features like data binding and dependency injection.
Let’s discuss how the MEAN Stack works in simple way:
Angular.js front end
Express.js and Node.js server tier
The next element comes after Angular.js is Express.js. It runs on a Node.js server. It has powerful models for URL routing and handle the HTTP responses and requests.
By developing the XML HTTP requests, POSTs or GETs from your Angular.js, you can link the Express.js function to power your app. This function uses MongoDB’s Node.js drivers. Either it deals using promises or call-back to access and update the information within the MongoDB database.
MongoDB database tier
If your app saves any data, you’ll need a database that’s user-friendly to deal as Angular, Express, and Node. MongoDB can help with this case since JSON documents generated in your Angular.js front end may be transmitted to the Express.js server, where they can be processed and (if they are valid) immediately saved in MongoDB for subsequent retrieval.
Advantages of Using MEAN Stack
The MERN stacks have several advantages that make it a popular choice for building web applications. Here are some of the benefits of using the MEAN stack, Which are:-
The MEAN Stack is scalable, which implies it can be easily adapted to meet growing apps’ requirements. MongoDB is considered a NoSQL database that implies the conventional relational database constraints regarding tables and rows do not limit it. It makes it possible to store and retrieve the data flexibly, which is significant for scalable apps.
The MEAN Stack is an open-source that indicates it is free to use, and a more extensive set of developers can assist you. It can be a significant advantage for businesses because it can save money on development costs and ensure that a developer who will assist in troubleshooting is always available.
The MEAN stack is fast as it is significant for real-time data processing or user interaction apps. Node.js is a non-blocking event-driven architecture that can handle multiple requests simultaneously without slowing down.
The MEAN Stack is highly secure and significant for apps to handle sensitive data. MongoDB uses the document-oriented storage model, making it complex for hackers to steal data. AngularJS uses several security features like data encryption and input validation to protect the data from unauthorized access.
Simple to Learn
Since the MEAN Stack is flexible, it can be used to make a wider range of web apps. It can help businesses because they can use the same technology stack for all of their apps.
As a MEAN Stack Developer, I can say that MEAN stack is a flexible and powerful technology stack that can be used to make a wider range of web apps. It is easy to learn, fast, scalable, and adjustable. Because of these benefits, it is a good option for businesses of all kinds.
Disadvantages of MEAN Stack
The MEAN stack is a popular choice for building web applications, but it also has some disadvantages. Here are some of the drawbacks of using the MEAN stack:
While the MEAN stack is scalable and can handle large amounts of traffic and data, it may not be the best choice for applications that require high performance. MongoDB, in particular, can be slow when dealing with complex queries and large datasets.
The MEAN stack is not inherently secure, and developers need to take extra precautions to ensure that their applications are protected against common security threats such as SQL injection and cross-site scripting (XSS).
While the MEAN stack has a large and active community of developers, it may not have the same level of support as other web development stacks. This can make it difficult to find help and resources when you need them.
Overview of MongoDB, Express.js, Angular, and Node.js
Let’s look at MongoDB, Express.js, Angular, and Node.js in more detail:
MongoDB: A NoSQL Database for MEAN Stack
MongoDB is a highly recognized NoSQL database broadly applied in MEAN (MongoDB, Express.js, AngularJS, and Node.js) stack development. It is also a document-oriented database that facilitates higher performance, scalability, and flexibility.
MongoDB may store the data in a resilient JSON format known as BSON (Binary JSON), allowing users to manage the challenging data structure.
MongoDB is a NoSQL database that is based on documents and doesn’t use a model. It makes it easy to store and find information in different ways. MongoDB is a popular way for web apps to store data because it can grow to meet the needs of growing apps.
Key Features and Advantages of MongoDB
MongoDB is a schema-less that shows data structure can be easily transformed without influencing the current information. Such flexibility is advantageous during development, while requirements may change frequently.
MongoDB facilitates horizontal scalability by sharding that lets distributing data across multiple servers. It enables handling a more considerable extent of data and higher traffic loads.
MongoDB provides higher performance of data retrieval and storage operations because of its capability for storing data together and assists in indexing faster problem resolution.
Querying and Aggregation
MongoDB facilitates a robust language that assists expressive and rich queries like filtering, sorting, and field projections. It also provides aggregation pipelines to perform complex data transformations and aggregations.
Replication and Fault Tolerance
MongoDB assists in a set of replicas that are different copies of your data distributed across multiple servers. Replica sets may offer data redundancy, fault tolerance, and automatic failover and ensure the higher accessibility of the database.
MongoDB considers the geospatial indexing and querying competencies, making it suitable for apps that deal with location-based records like geolocation and mapping services.
Integrating MongoDB with MEAN Stack
Integrating MongoDB with the MEAN Stack considers as the database for retrieving and storing the data for the app. It can be accessed from the back-end (Node.js) using the MongoDB Node.js driver or an ODM (Object-Document Mapper) such as Mongoose.
For integrating MongoDB with the MEAN Stack, you will commonly develop a connection to the MongoDB server from your Node.js back-end, defining database models or schemas via Mongoose and then conduct CRUD (Create, Read, Update, and Delete) operations for your data.
You may consult with mean stack development company to integrate the MongoDB with MEAN Stack effectively.
Performing CRUD Operations with MongoDB
CRUD operations are fundamental to working with any database such as MongoDB. Here is a brief overview of how CRUD operations can perform with MongoDB:
To create a new document in a MongoDB set, consider the insertOne() or insertMany() techniques, offering the data you want to insert.
MongoDB facilitates different techniques to retrieve and query the data. The uses of find() method is to retrieve documents that match specific criteria. Moreover, you can specify query conditions, sorting, and projection of fields to include or exclude.
MongoDB provides different techniques to update documents. The updateOne() and updateMany() techniques permit modifying particular fields or replacing the whole paper according to specific criteria.
MongoDB facilitates the deleteOne() and deleteMany() approaches to remove the documents from a collection similar to certain conditions.
These operations can perform using MongoDB Node.js driver or with the support of an ODM such as Mongoose that offers a higher extent of abstraction to interact with the MongoDB.
It considers the topics associated with MongoDB in Mean Stack Development. Let’s move further on to the next issue, i.e. Express.js.
Express.js: Streamlining Back-End Development in MEAN Stack
Express.js is a flexible and minimal Node.js web app framework that facilitates a robust set of features for web and mobile apps. A broader category of developers uses it, from beginners to experienced developers. And it is recognized for its power, performance, and simplicity.
Express.js apps can deploy to any server that assists Node.js. This makes it a highly adaptable platform for building web apps. Express.js is a platform for building web applications. Based on Node.js, you can create web apps using middleware, routes, and themes.
As well as being easy to learn and use, it is also a popular choice for building web apps. Additionally, it facilitates the creation of dynamic and interactive apps because of its various features.
Setting Up Express.js in MEAN Stack
Setting up Express.js in a MEAN (MongoDB, Express.js, Angular, Node.js) stack involves installing and configuring Express.js as the back-end framework. Here’s a step-by-step guide to help you get started:
1. Install Node.js and npm:
Download and install Node.js from the official website (https://nodejs.org).
npm (Node Package Manager) is bundled with Node.js, so you don’t need to install it separately.
2. Create a New Project:
Create a new directory for your MEAN stack project.
Open a command prompt or terminal and navigate to the project directory.
3. Initialize a new npm project:
Run the following command to initialize a new npm project:
npm init -y
Naveen Khanna is the CEO of eBizneeds, a company renowned for its bespoke web and mobile app development. By delivering high-end modern solutions all over the globe, Naveen takes pleasure in sharing his rich experiences and views on emerging technological trends. He has worked in many domains, from education, entertainment, banking, manufacturing, healthcare, and real estate, sharing rich experience in delivering innovative solutions.