Go hexagonal architecture example

This is an example illustrating how to structure code in go using hexagonal architecture

Reference : https://youtu.be/rQnTtQZGpg8

Here are some articles about hexagonal architecture

• https://blog.ndepend.com/hexagonal-architecture/
• https://en.wikipedia.org/wiki/Hexagonal_architecture_(software)
• https://medium.com/idealo-tech-blog/hexagonal-ports-adapters-architecture-e3617bcf00a0
• https://dzone.com/articles/hexagonal-architecture-what-is-it-and-how-does-it

Folder structure

• api -> contains api handler logic
• repository -> logic to intact with different storage mechanisms (mongo, redis etc)
  • memory -> implementation of repository logic using in-memory store (hashmap)
• serializer -> logic to encode/decode objects to bytes
  • json -> serializer implementation using json
  • msgpack -> serializer implementation using msgpack
• shortner -> app and domain logic for shortner
  • logic.go -> business logic written as a service
  • model.go -> struct
  • repository.go -> interface to deal with repository
  • serializer.go -> interface to encode/decode Redirect struct
  • service.go -> interface for business logic

Build and run

Run the following command to run the app

./run.sh

Run the following to test the app

./scripts/test.sh

The script will create a new short link and print the output