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
17. 06-03-gin-middlewares - Implementando el middleware de recuperación de errores en Gin
18. 07-01-publishing-domain-events - Publicando eventos de curso creado
19. 07-02-domain-events-subscriber - Implementando nuestro suscriptor de eventos
20. 07-03-event-bus-implementation - Implementando el Event Bus
21. 08-01-reading-env-variables - Leyendo configuración de variables de entorno
22. 08-02-build-and-deploy - Build, despliegue y ¡a producción!
23. 08-03-debugging - Generando la imagen de Docker y depurando errores

Usage

To execute the application from any lesson, just run:

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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:

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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:

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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:

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go test ./... 

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

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