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Heard of any design patterns before? Even if not, we can provide you with some insights on it.

What are Design Patterns?

Design patterns are a part of the software engineering and software development procedure. They are used to design the structure and layout before the software is built.

Design Pattern: Classification

Ideally, Design patterns in software development are broadly classified into three categories. Software developers tend to work according to categorized patterns.

The classification is as given below:

Creational Pattern:- 

They are specific design patterns that are designed for a particular situation. They tend to deal with the object creation and the problems encountered during its process.

Structural Pattern:- 

They pave a way to make the software designing process easier. They identify a way of defining relationships among entities and their structure in software. Inheritance plays a major role in it.

Behavioral Pattern:- 

They help to identify the pattern followed during the communication process. They are focused on increasing the communication and flexibility between entities in a system. Your focus should be on avoiding any type of dependencies between the software and the user.

These 3 categories are further divided into 23 types. Want to learn what those categories are? Let’s have a look at those types!

In all, there are around 23 types of design patterns that can be used to address the issues that are encountered in a particular type of software. You know design patterns aren't final designs, right? They aren't directly transformed into codes. 

They are just templates that give you a brief about how to address an issue when you come across one.

Design Pattern: Benefits

Using design patterns for developing your software sure has some benefits. Some of them are as mentioned below:

  • They speed up the development process.
  • They offer well tested and trustworthy development structures.
  • They offer the reusability of design structures for different scenarios. This can help to avoid any errors that may occur while designing the patterns again. 
  • They are cost and time efficient as they offer reusability of the designed patterns.
  • They provide general solutions to most of the designing problems.
  • As they are not the final designs, there is always room for improvisation and changes.

What is a Model View Controller?

As we have discussed design patterns, let's learn something about it being put to use practically. 

MVC, short for Model View Controller, is a design pattern that is usually used in web applications and their development process. The said pattern consists of three objects:

  • Model, 
  • View, and
  • Controller

So let us see what each of the three objects are responsible for.

Model:- 

It is responsible for storing data. It consists of classes that can help you to define separate sections of your website or web application.

View:- 

It is what the users see and interact with. The data stored in the model is displayed to the user at the view level. You can use any of the front end languages like HTML, CSS, JavaScript to develop this. 

Controller:- 

As the word suggests, this section is responsible for controlling the interactions between the previous two sections. It acts as a link between the stored data and its display.

Node JS and MVC

We know that Node JS is one of the most efficient platforms used for developing applications. It uses JavaScript to build applications. 

The relation between Node JS and MVC is an important one from the application development perspective. As we know, MVC defines the structure of an application. What would be the benefit of using Node JS along with MVC? The answer to it is quite simple.

  • VC and Node JS are both used to build efficient web applications. 
  • When used together, the chances of successfully building that application increase.

You can easily build an MVC for your Node JS application by following certain steps. Let's take a look at what those steps are.

Steps for building an MVC Architecture in Node JS

You can use any Node JS framework, as per your suitability. Building an MVC Architecture for your application can help you to separate all the necessary sections of your website and work on them accordingly.

Now, the steps for the same are as given below;

  • Build your Node JS server first.
  • Then build the router and controllers. 
  • Obtain data from the model.
  • Make use of the view section of the MVC to create a UI/website for users to interact with.
  • Create a 404 error page for if a requested URL path is not recognized by the server.

Communication between the server and the router is crucial as it will guide the setup of the MVC. Controllers are responsible for performing the requests received, the view is for interaction with the end-user, and the model provides data to this setup.

The source codes as well as tutorials and videos for carrying out these steps are easily available on the Internet. You can just refer to them and successfully create MVC Architecture for your Node JS applications.

We have discussed all the basics, MVC, and its inclusion in Node JS applications. The main reason why you should implement the MVC architecture in your applications is because of the advantages it offers. To name a few, it can allow multiple views to be generated and can help you to save time and resources.

Besides that, it is also SEO friendly and we all know how important SEO has become in the present time. By rendering an MVC Architecture in your app you can be sure that any modification in particular sections will not affect your application’s overall model. 

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