go-gorm-db-transactions

DB Transaction Implementation for multi-layered (Controller, Service, Repository layers) Golang project.

Uses :-

• GORM (As ORM library for the DB interactions)
• Go Fiber (As REST Framework)
• MySQL Driver (MySQL as Relational DB choosen for the Demo)

This repository showcases the implementation of the database transactions in a multi-layered project having Controller, Service, Repository, etc. layers. DBTransactionMiddleware is the middleware which takes care of DB transaction functionality.

How to Run :-

• In Terminal, Run go run main.go
• Hit the endpoints through the REST client of your choice (e.g. Postman)
• e.g. To create new users

  // Create first user
  POST localhost:3000/users
  {
    "email": "test@mail.com",
    "wallet": 1000
  }
  
  // Creates 2nd user
  POST localhost:3000/users
  {
    "email": "testnew@mail.com",
    "wallet": 2000
  }
  

• e.g. To carry money transfer between 2 users

  POST localhost:3000/transfer-money
  {
    "receiver": 1,
    "giver": 2,
    "amount": 500
  }
  

Note :-

• By Default, the transaction should fail in decrementing the money from Giver's account
• To make it working, Go to user_repository.go and uncomment the last line by first commenting the error line above it.