What is MEAN Stack? All you need to know [ OverView ]

Last updated on 09th Dec 2021, Blog, General

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The MEAN stack is JavaScript-based framework for developing web applications. MEAN is named after MongoDB, Express, Angular, and Node.

• Introduction of Mean stack
• How Does the MEAN Stack Work?
• MEAN Stack Components
• Advantages of the MEAN Stack
• Disadvantages of the MEAN Stack
• When Can the MEAN Stack be Used?
• Using MEAN Stack with MongoDB Atlas
• How Secure is the MEAN Stack?
• MEAN Stack and Its Applications
• Conclusion

Introduction of Mean stack:-

The MEAN stack is JavaScript-primarily based totally framework for growing net applications:-

• MongoDB – file database
• Express(.js) – Node.js net framework
• Angular(.js) – a client-aspect JavaScript framework
• Node(.js) – the most excellent JavaScript net server
• There are versions to the MEAN stack which include MERN (changing Angular.js with React.js) and MEVN (the use of Vue.js). The MEAN stack is one of the maximum famous era ideas for constructing net applications.

How Does the MEAN Stack Work?

The MEAN structure is designed to make constructing internet packages in JavaScript and dealing with JSON noticeably easy.

MEAN Stack Components:-

Angular.js Front End:

• At the very pinnacle of the MEAN stack is Angular.js, the self-styled “A JavaScript MVW Framework” (MVW stands for “Model View and Whatever”).
• Angular.js lets in you to increase your HTML tags with metadata so as to create dynamic, interactive net studies tons greater powerfully than, say, constructing them your self with static HTML and JavaScript (or jQuery).
• Angular has all the bells and whistles you’d count on from a the front-quit JavaScript framework, along with shape validation, localization, and communique together along with your back-quit service.

Express.js and Node.js Server Tier:

• The subsequent degree down is Express.js, jogging on a Node.js server. Express.js calls itself a “fast, unopinionated, minimalist net framework for Node.js,” and this is certainly precisely what it is.
• Express.js has effective fashions for URL routing (matching an incoming URL with a server function), and managing HTTP requests and responses. By making XML HTTP requests (XHRs),r GETs, or POSTs out of your Angular.js the front quit, you could connect with Express.js features that strength your utility.
• Those features in flip use MongoDB’s Node.js drivers, both through callbacks or the usage of Promises, to get admission to and replace information for your MongoDB database.

MongoDB Database Tier:

• If your utility shops any information (person profiles, content, comments, uploads, events, etc.), then you’re going to need a database that’s simply as smooth to paintings with as Angular, Express, and Node.
• That’s in which MongoDB comes in: JSON files created for your Angular.js the front quit may be despatched to the Express.js server, in which they may be processed and (assuming they’re valid) saved without delay in MongoDB for later retrieval.
• Again, in case you need to without problems get the great of MongoDB, you’ll need to examine MongoDB Atlas. This will permit you integrated complete database protection and cross-cloud scalability with the pressing of a button. More on that later in this page.

Advantages of the MEAN Stack

MEAN programs may be used in lots of approaches with a pass platform write as soon as approach. While MEAN is mainly applicable to real-time programs, mainly the ones going for walks natively withinside the cloud and single-page (dynamic) net programs constructed in Angular.js, it may be used for different use instances such as:-

• Workflow control tools.
• News aggregation sites.
• Todo and calendar programs.
• Interactive forums.
• Since all of the additives are primarily based totally on JavaScript and JSON, the combination among the additives of the stack is intuitive and straightforward.
• Additionally, the E and A of MEAN (Express and Angular) are of the maximum famous and well-supported JavaScript frameworks for back-stop and front-stop development, respectively. Express makes routing and handling HTTP requests and responses first-rate easy, and consists of outstanding aid for middleware to deal with JSON endpoints and shape posts. Angular is a effective device for constructing dynamic HTML pages that talk with a back-stop server.
• Whether you’re constructing a high-throughput API, a easy net application, or a microservice, MEAN is the perfect stack for constructing Node.js programs.
• All of the MEAN stack additives are open supply in nature and consequently permit a generous, free-of-fee possibility for developers.

Disadvantages of the MEAN Stack

1.JavaScript is a splendid contemporary-day language, however it wasn’t to start with designed to construct back-give up servers. Since the muse of the MEAN stack is JavaScript, which includes the back-give up server, it would include concurrency and overall performance issues at scale because of JavaScript nature.

2.Additionally, for the reason that improvement possibility is so rapid, enterprise and server common sense would possibly be afflicted by negative isolation, making capacity spaghetti code and terrible practices a fact alongside the way.

3.Finally, even though there are numerous courses and tutorials out there, they commonly will now no longer consist of concrete JS coding hints suitable for this stack. Therefore, some thing that labored genuinely properly for one utility would possibly floor troubles for another.

When Can the MEAN Stack be Used?

• MEAN follows the conventional three-tier stack pattern, which includes the show tier (Angular.js), utility tier (Express.js and Node.js), and database tier (MongoDB).
• If you’re constructing a JavaScript utility, specially in Node.js, then you definitely must supply MEAN a severe look.
• MongoDB shops statistics in a JSON-like format (BSON, a binary JSON extension), the MongoDB Query Language (MQL) is described in JSON, and its command line interface (CLI) is a JavaScript interpreter. Not best is MongoDB basically a JavaScript/JSON statistics store, however it’s complete of superior capabilities like indexing and querying deep into JSON documents, has effective local Node.js drivers, and is designed for horizontal scale-out. It’s even less complicated to expand apps withinside the cloud the usage of MongoDB Atlas, the cloud-local Database-as-a-Service from the creators of MongoDB.
• Whether you’re constructing a high-throughput API, a easy net utility, or a microservice, MEAN is the precise stack for constructing Node.js applications.

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Using MEAN Stack with MongoDB Atlas

• The MongoDB Node.js motive force makes operating with MongoDB from internal a Node.js script easy and intuitive for builders—saving builders time and growing their productivity.
• Next, you will want a MongoDB database. The simplest manner to get began out with MongoDB is to create a loose cluster in MongoDB Atlas, MongoDB’s fully-managed, multi-cloud file Database-as-a-Service.
• Atlas databases are without difficulty deployed and scaled, supplying you with a constant URI to connect. See the legit MongoDB documentation on connecting to a cluster.
• Along the manner, Atlas connections include integrated username/password and TLS stop-to-stop encryption through default. Additionally, it lets in you to make use of superior MongoDB safety capabilities together with certificate/IAM authentication, LDAP, Encryption-at-rest, and Auditing with the pressing of a button.
• Moreover, an Atlas undertaking can make use of the MongoDB Realm programs platform to without difficulty combine many authentication companies together with Google, Facebook, JWT, and custom authentication.
• Scaling and Managing Atlas may be very easy; its largest advantage is that it helps and secures the MEAN stack’s maximum precious layer: the facts layer.

How Secure is the MEAN Stack?

• We advocate the usage of the MEAN stack with MongoDB Atlas, in view that Atlas has integrated credentials, a firewall, and stop-to-stop encryption that’s the nice basis for securing your MongoDB.
• The commercial enterprise common sense and furthermore on your database layer. Therefore, your software is via way of means of default designed to keep away from malicious consumer interplay from setting your software at risk (Query injection, code manipulation, port spoofing etc.).

How Secure is the MEAN Stack?

• We advocate the usage of the MEAN stack with MongoDB Atlas, in view that Atlas has integrated credentials, a firewall, and stop-to-stop encryption that’s the nice basis for securing your MongoDB.
• The commercial enterprise common sense and furthermore on your database layer. Therefore, your software is via way of means of default designed to keep away from malicious consumer interplay from setting your software at risk (Query injection, code manipulation, port spoofing etc.).

MEAN Stack and Its Applications

PayPal:

• PayPal is a clever cash switch utility. It makes use of each AngularJS and NodeJS for smoother functioning and less complicated transactions.
• PayPal has extra than 325 million lively customers. PayPal closely makes use of AngularJS for styling the additives and dealing with the go with the drift of payment.
• It makes use of AngularJS to create instructions and particular HTML factors for secure transactions.
• It turned into at the beginning advanced with HTML, CSS, and Javascript for the consumer and server-side. Now, PayPal makes use of each the front-stop and back-stop builders to paintings with each AngularJS and NodeJS.
• It unifies our engineering specialties into one crew which lets in us to apprehend and react to our customers’ desires at any stage withinside the generation stack.”
• Both MEAN Stack additives have furnished PayPal with green improvement, excessive speed, consumer convenience, and beautify overall performance.



Netflix:

• Netflix is a famous streaming carrier platform that relies upon on MEAN additives. AngularJS allows the streaming platform create quite a few animations.
• Netflix turned into constructed on Java at the back-stop and JS at the the front-stop. But it appeared tough to manipulate distinct programming languages.
• So, to save you postpone withinside the improvement manner they opted for the popular language, JavaScript. This blended the the front and back-stop below one programming language that complements overall performance and speed.
• Netflix makes use of AngularJS to create numerous topics for its dynamic consumer base, because it makes maximum of its sales the use of paid customers.
• Node.js has allowed the streaming carrier to undergo huge information masses and helped enhance consumer experience.
• With MEAN additives, Netflix has advanced a huge set of customers and allowed its builders to effortlessly make essential modifications at the net utility. As each AngularJS and Node.JS are open-sourced the manner will become less complicated.

The Weather Channel:

• The Weather Channel is strolling its operations on climate.com as well. It closely relies upon on MEAN additives to run the internet site and alertness smoothly.
• Earlier they have been the use of the RDBMS database however confronted numerous troubles with important clients. That is while MongoDB stepped in and the troubles that could have taken weeks to clear up have been effects solved inside hours.
• Here, MongoDB helped construct its cell utility that serves over forty million customers. The Weather Channel additionally makes use of MonogoDB’s schema and MapReduce for stay analytics and forecast primarily based totally at the information.
• MongoDB helped The WeatherChannel advantage a bonus over its competitors.
• The Weather Channel additionally relies upon on AngularJS for easy climate forecasts and overall performance. As it offers worldwide forecasts via the site, it makes use of AngularJS for numerous topics that extrade consistent with the regions and regions.

Gmail:

• Google backs AngularJS as an closing method to constructing rapid and scalable internet apps. Google encourages builders to make use of the Angular framework for growing person interfaces.
• In fact, Gmail become constructed with AngularJS and is a conventional SPA. Gmail hundreds the browser for a unmarried HTML web page and uniquely updates the web page.
• The MEAN issue makes it simpler for the mail utility customers to study and compose emails. The capabilities are all without difficulty handy on a unmarried internet web page with the assist of AngularJS.

YouTube:

• In 2012, YouTube’s app become to be had to be downloaded on PS3. This paved the manner for customers to remotely manipulate YouTube on PS3 the usage of their smartphones.
• YouTube relied on Angular’s platform to make use of the HTML records effectively. Angular allowed YouTube builders to use dynamic codes to execute the person interface.
• Angular allowed YouTube motion pictures to flow harmoniously on PS3 preserving the best and speed.

Conclusion

• MEAN Stack is a brand new and cutting-edge generation withinside the net utility industry. Companies use MEAN Stack in instances of growing authentic and reducing part applications.
• Although it’s a growing generation, MEAN Stack additives as visible were utilized by businesses like Netflix, YouTube, JetBlue, The Guardian, etc.