Container Pattern

Overview

This application implements the Container Pattern.

A Container is an object created to hold other objects that are accessed, this way injecting a dependency is very easy.

The repositories receive the database, and this database is injected as a dependency in each repository.

The services receive the repositories and these repositories are injected as a dependency on each service.

The handlers/controllers receive these services and each handler/controller is given the necessary service.

This pattern helps a lot, in addition to maintaining an organization, it guarantees a very high consistency in your codebase.

$ go mod tidy

Fill the .env file with the correct values to connect to the Postgresql database.

$ cp .env.example .env

$ go run cmd/api/main.go

Now send a POST request to verify that the body data has been saved:

http://localhost:3333/installment

{
  "id": "1",
  "value": 10.1,
  "due_day": 30
}