Microservices (Explained by Example)

Microservices technology is a new pattern of software engineering that has been popularized recently. In this video we will explain what microservices are, their pros and cons by example. 

A lot of companies have moved in the early 2010 such as twitter and netflex to the microservices architecture. 

Microservices technology is a pattern where you can break down big application into smaller services and what previously is a function call is now a network call GET or POST through HTTP.

In order to explain what microservices are, we need to explain how a traditional classical application looks like. Here is an example ..

Instagram  

View Picture, list comments, likes and Picture and Location. 

Picture

Likes

Comments

Picture API (Thumbnails) 

Likes API 

Comments API Most popular comments

Pros:

Polyglot architecture 

Easy scaling for microservices that needs scaling. 

Better Team management, each microservice is a team

Easier to innovate certain areas.

Each microservice can pick their own database 

Scale busy services instead of entire system 

Cons:

Very complicated to implement, network call, service discovery 

Very Difficult to debug

Hard to find where the fault is 

Network calls fails adds complexity.

5:00

6:50 proxy vs reverse