go-hexagonal_http_api-course

CodelyTV - Go HTTP API - Hexagonal Architecture

This repository contains the code examples used on the CodelyTV course.

Requirements

• Go v1.15+
• MySQL (see below).

Contents

This project has been designed as a single Go module with multiple applications. Each folder contains a completely functional application (binary) that can be executed isolated.

Each folder corresponds to one of the course lessons / videos:

1. 01-01-your-first-http-endpoint - Nuestro primer endpoint HTTP en Go
2. 01-02-using-gin - Usando Gin: nuestro primer framework
3. 01-03-architectured-healthcheck - Arquitecturando nuestro health check
4. 02-01-post-course-endpoint - Implementando el endpoint de creación de curso
5. 02-02-repository-injection - Inyectando nuestro repositorio
6. 02-03-controller-test - Testeando nuestro endpoint
7. 02-04-domain-validations - Añadiendo validaciones a nuestro dominio
8. 03-01-mysql-repository-implementation - Implementando nuestro repositorio para MySQL
9. 03-02-repository-test - Testeando nuestro repositorio
10. 04-01-application-service - Refactorizando el endpoint para extraer el Application Service
11. 04-02-application-service-test - Testeando el Application Service
12. 04-03-command-bus - Unificando nuestros casos de uso: Command Bus
13. 05-01-graceful-shutdown - Graceful shutdown
14. 05-02-timeouts - Timeouts en operaciones asíncronas: repositorio
15. 06-01-http-middlewares - Usando middlewares HTTP en Go
16. 06-02-time-parse-in-go - El secreto mejor guardado de Go y sus fechas

Usage

To execute the application from any lesson, just run:

export COURSE_LESSON=02-04-domain-validations; go run $COURSE_LESSON/cmd/api/main.go 

Replacing COURSE_LESSON value by any of the available ones.

Simple examples

Some lessons only contain a single main.go file with a few lines of code. To run one of those lessons, just run:

export COURSE_LESSON=01-01-your-first-http-endpoint; go run $COURSE_LESSON/main.go 

MySQL & Docker

From 02-01-post-course-endpoint on, the application on each directory relies on a MySQL database. So, to simplify its execution, we've added a docker-compose.yaml file with a MySQL container already set up.

To run it, just execute:

docker-compose up -d 

You can also use your own MySQL instance. Note that those applications expects a MySQL instance to be available on localhost:3306, identified by codely:codely and with a codely database.

To set up your database, you can execute the schema.sql file present on the sql directory. It's automatically loaded if you use the provided docker-compose.yaml file.

Tests

To execute all tests, just run:

go test ./... 

To execute only the tests present in one of the lessons, run:

go test ./02-04-domain-validations/...