mail-server

An event-driven microservices social application has been written in Golang

Technical stack

• Infrastructure
  • PostgreSQL
  • RabbitMQ
  • Docker and Docker-compose
  • Redis

Design

Services

No.	Service	URL
1	gRPC Gateway	http://localhost:5000
2	Mail Service	http://localhost:5001
3	Web	loading...

Clean Architecture

Explain Clean Architecture

• Clean Architecture is a multi-layered architecture.
• Isolate Business Rules. Similar to Hexagonal and Onion architecture.
• The concentric circles represent layers, the closer to the center the more abstract (high level), and the further out the more detailed (low level).
• Dependency Inversion (DI) in SOLID High level will not depend on low level, both depend on abstraction/interface. Abstraction does not depend on details but vice versa.

Note

• ---> In Clean Architecture arrows is Dependency Direction , not call direction.

Clean Domain-driven Design

Development

Install tools

Docker Desktop for Mac
TablePlus or pgAdmin4
Golang
Migrate

• Mac OS

brew install golang-migrate

• Linux

curl -L https://packagecloud.io/golang-migrate/migrate/gpgkey | apt-key add -
echo "deb https://packagecloud.io/golang-migrate/migrate/ubuntu/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/migrate.list
apt-get update
apt-get install -y migrate

DB Docs

npm install -g dbdocs
dbdocs login

DBML CLI

npm install -g @dbml/cli
dbml2sql --version
# or if you're using yarn
yarn global add @dbml/cli
dbml2sql --version

SQLC

• Mac OS

brew install sqlc

• Linux

sudo snap install sqlc

Go mock

go install github.com/golang/mock/mockgen@v1.6.0

How to generate code

Generate dependency injection instances with wire

make wire

Generate code with sqlc

make sqlc

Generate proto using protobuf

make proto

Documentation

Generate DB documentation

make db_docs

Access the DB Documentation at db go-microservice.Password: 123456789

How to run

Run using Docker

Start docker core include (postgres , redis, rabbitmq, etc)

make docker-core

Start docker multi-service (group,post,like, etc)

make docker

Run

make run

Run test

make test

Step By Step Create Service

• Documents