Node.Js Learning Koa.Js By Building REST APIs

Bo0mB0oma · March 8, 2019

Node.Js: Learning Koa.Js By Building REST APIs

MP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration: 3.5 Hours | Lec: 59 | 523 MB

Genre: eLearning | Language: English

The complete guide to build REST APISs with Koa.Js, Sequelize And Mysql

What is Koa.js?

Koa is a new web framework designed by the team behind Express, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. Through leveraging generators Koa allows you to ditch callbacks and greatly increase error-handling. Koa does not bundle any middleware within core, and provides an elegant suite of methods that make writing servers fast and enjoyable.

Does Koa replace Express?

Koa is more like Connect, but a lot of the Express goodies were moved to the middleware level in Koa to help form a stronger foundation. Koa makes middleware more enjoyable and less error-prone to write, for the entire stack, not just the end application code.

Typically many middleware would re-implement similar features, or even worse incorrectly implement them, when features like signed cookie secrets among others are typically application-specific, not middleware specific.

Why is not Koa Express4.0?

Koa is a pretty large departure from what people know about Express, the design is fundamentally much different, so the migration from Express 3.0 to this Express 4.0 would effectively mean rewriting the entire application, so we thought it would be more appropriate to create a new library.

Why you should learn Koa?

Promise based flow in Koa

No Callbacke hell in Koa

Better error handling through try/catch in Koa

Koa is more modular

Better user experience in Koa

Proper stream handling in Koa

What you will learn in this course

Fundamentals of Koa

Building API from scratch in Koa

Integrating Koa with Sequelize

How to use Mysql with Koa