NestJS Basics#2 - Building Interfaces with Controllers

Building our application from scratch

Welcome to the Part 2 of NestJS Basics.

We completed the first stage of our NestJS learning journey. Some of the things we covered in the previous post:

• Bootstrap a NestJS project using Nest CLI

• Understanding the role of main.ts

• Making the right platform choice

It is time to take the next step.

The Plan

In this post, we are going to look at building interfaces using controllers in NestJS.

As you can see in the below illustration, controllers help us group together route handlers based on functionality. In my view, they are one of the most important concepts in NestJS.

Here’s the plan for the post:

• Creating a simple NestJS Controller

• Introduction to classes and decorators

• Understanding the Request & Response objects

• Seeing the @Param() & @Body() decorators in action

• What’s next?

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