• ORM --> gorm https://github.com/go-gorm/gorm
• Database --> postgresql https://www.postgresql.org/
• Framework --> gin https://github.com/gin-gonic/gin
• Cache --> redis https://redis.io
• Stucture --> kafka
• Type_api --> resful
• Devops --> dev ( heroku ) --> prod ( aws google-cloud)
• Target --> voucher
• Env manager --> Viper

system/
  cmd/
    server/
      main.go
  internal/
    app/
      app.go
    handler/
      voucher.go
    model/
      voucher.go
    repository/

  util/
    database.go
  vendor/
  .env
  .env.example
  .gitignore
  go.mod
  go.sum
  README.md

Here's what each component of the project structure does:

1. cmd

• cmd/server/main.go: This is the main entry point for the application, and is responsible for starting the Gin web server and handling HTTP requests.

2. Internal

• internal/app/app.go: This file contains the code for initializing the Gin web framework and setting up middleware, such as logging or authentication.

• internal/handler/voucher.go: This file contains the code for handling HTTP requests related to vouchers, such as redeeming a voucher or retrieving information about a voucher.

• internal/model/voucher.go: This file contains the Go struct for representing a voucher, with fields for the voucher code, expiration date, and redemption status.

• internal/repository/voucher.go: This file contains the code for interacting with the PostgreSQL database to retrieve, create, and update vouchers.

• internal/util/database.go: This file contains the code for connecting to the PostgreSQL database and executing SQL queries.

2. Vendor

• vendor/: This directory contains the dependencies for the project, managed using Go's built-in go mod tool.

3. .env: This file contains environment variables for the application, such as the database connection details.

4. .env.example: This file provides an example of the environment variables that should be defined in the .env file.

5. .gitignore: This file specifies files and directories that should be ignored by Git.

6. go.mod and go.sum: These files are generated by Go's go mod tool and manage the dependencies for the project.

7. README.md: This file provides a high-level overview of the project, including instructions for building and running the application.