README.md

go-coffeeshop

An event-driven microservices coffee shop application has been written in Golang and deployed using Nomad, Consul Connect, Vault, and Terraform.

Other versions in .NET/C# can be found at:

• .NET CoffeeShop with Microservices approach
• .NET CoffeeShop with Modular Monolith approach

Technical stack

• Backend building blocks
  • grpc-ecosystem/grpc-gateway/v2
  • labstack/echo/v4
  • rabbitmq/amqp091-go
  • kyleconroy/sqlc
    • pq
  • golang-migrate/migrate/v4
  • Utils
    • google/wire
    • ilyakaznacheev/cleanenv
    • golang.org/x/exp/slog
      • sirupsen/logrus
    • samber/lo
    • automaxprocs/maxprocs
    • stretchr/testify
    • golang/glog
    • google/uuid
    • google.golang.org/genproto
    • google.golang.org/grpc
    • google.golang.org/protobuf
• Infrastructure
  • Postgres, RabbitMQ
  • Hashicorp Nomad, Consul (Connect), Vault, Terraform
  • docker and docker-compose
  • devcontainer for reproducible development environment

CoffeeShop - Choreography Saga

Services

No.	Service	URI
1	grpc-gateway	http://localhost:5000
2	product service	http://localhost:5001
3	counter service	http://localhost:5002
4	barista service	worker only
5	kitchen service	worker only
6	web	http://localhost:8888

Starting project

Jump into .devcontainer, then

> make docker-compose

From vscode => Press F1 => Type Simple Browser View => Choose it and enter http://localhost:8888. Enjoy!!!

Screenshots

Home screen

Payment screen

Order list screen

HashiCorp stack deployment

The details of how to run it can be find at deployment with Nomad, Consult Connect and Vault.

Development

Clean Domain-driven Design

Generate dependency injection instances with wire

> make wire

Generate code with sqlc

> make sqlc

Debug Apps

Debug golang app in monorepo

Trouble shooting

Development project trouble shooting

Roadmap

• ✅ Enhance project structure with DDD patterns
• Add testing
• Add and integrate with observability libs and tools
• Add user identity management (authentication and authorization)
• Add resiliency

Credits

• project-layout
• repository-structure
• go-build-template
• go-clean-template
• emsifa/tailwind-pos