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1. Mern stack architecture diagram update#
2. Mern stack architecture diagram full#
3. Mern stack architecture diagram code#

Mern stack architecture diagram code#

Express code is much more cleaner to read as well as write. This was just an example, quite a simple one too. Here's an example to make it clear what I'm talking about: We can create different routes for each endpoint which the user accesses. In simpler terms, Express is used to listen to a particular port of our server for requests from the user or frontend. In MERN stack applications, the role of Express is to manage our backend API server, the one from which we will be fetching data from database via our React frontend. Express is the most popular web application framework which uses NodeJS. Moving on to ExpressJS, let's first try to understand what it exactly is, why do we use it and do we actually need it (spoiler alert, it's not!). Understanding mongoose pre and post hooks.

Mern stack architecture diagram update#

Perform CRUD (Create, Read, Update & Delete) operations on the database.Setting up local MongoDB or cloud MongoDB Atlas database.

Mern stack architecture diagram full#

If I were to prepare a checklist of stuff you learn regarding MongoDB for building full stack web applications, it would consist of: Ability to store geospatial data through GeoJSONĪlright, but how exactly shall we use MongoDB to store our data in a MERN stack web application? While we can use the mongodb npm package, it is more convenient to use an ODM or Object Data Modelling library such as mongoose.High scalability through distributing data on multiple servers.MongoDB is great in so many aspects, which makes it an awesome choice for your upcoming projects. Here's how the data stored in MongoDB looks like:Įnter fullscreen mode Exit fullscreen mode Tables are just a collection of data in tabular form through rows and columns.

In SQL databases, data is stored in tables. Woah woah, too much jargon? Don't worry! Let's break the above sentence into smaller chunks.īeginning with SQL vs NoSQL. MongoDB is a NoSQL database in which data is stored in the form of documents which comprises of key-value pairs, sharing a lot of resemblance to JSON or JavaScript Object Notation. Now that we have a basic understanding of what the MERN stack is, let's dive deeper into the technologies that it consists of, starting off with MongoDB. You can use your proficiency in a single language to manage both the frontend and the backend of your web application. Some developers consider this to one of key reasons why the MERN stack is so popular. The MERN stack is web development tech stack which consists of MongoDB, ExpressJS, ReactJS and NodeJS, that enables you to build feature rich single page web applications using a single programming language, JavaScript. Excited? Let's dive right into it and begin with understanding the core concepts. What is it, what does it stand for, how can you become a MERN stack developer? I'm here to demystify it and introduce you to one of the trendiest web development tech stacks, while providing you a proper roadmap as well as resources alongside. If you've ever wanted to become a full stack web developer, chances are that you came across the term MERN Stack. Today, we're able to build websites that fetches the code files from server once and never reload again even while visiting other pages. From that point onward, web technologies have made major strides, owing to JavaScript frameworks which made single page applications or SPAs a thing. Then came in JavaScript and revolutionised the way the web works. We started with plain HTML and CSS websites. Websites have come a long way from what they used to be a decade ago.