azhmif / product-service

ShopeeFun Product Service

This is a simple product service for ShopeeFun sprint project.

Developer Guide

General Rules

• We use conventional commits to deal with git commits: https://www.conventionalcommits.org

  • Use feat: commit message to do git commit related to feature.
  • Use refactor: commit message to do git commit related to code refactorings.
  • Use fix: commit message to do git commit related to bugfix.
  • Use test: commit message to do git commit related to test files.
  • Use docs: commit message to do git commit related to documentations (including README.md files).
  • Use style: commit message to do git commit related to code style.

• Use git-chglog https://github.com/git-chglog/git-chglog to generate changelog (CHANGELOG.md) before merging to release branch.

Branching Strategy

• Keep your branch strategy simple. Build your strategy from these three concepts:
  • Use feature branches for all new features and bug fixes.
  • Merge feature branches into the main branch using pull requests.
  • Keep a high quality, up-to-date main branch.

Use feature branches for your work

Develop your features and fix bugs in feature branches based off your main branch. These branches are also known as topic branches. Feature branches isolate work in progress from the completed work in the main branch. Git branches are inexpensive to create and maintain. Even small fixes and changes should have their own feature branch.

Name your feature branches by convention

• Use a consistent naming convention for your feature branches to identify the work done in the branch. You can also include other information in the branch name, such as who created the branch.

• Some suggestions for naming your feature branches:

  • users/username/description
  • users/username/workitem
  • bugfix/description
  • feature/feature-name
  • feature/feature-area/feature-name
  • hotfix/description

Use release branches

• Create a release branch from the main branch when you get close to your release or other milestone, such as the end of a sprint. Give this branch a clear name associating it with the release, for example release/20.
• Create branches to fix bugs from the release branch and merge them back into the release branch in a pull request

Folder structure explanation

• cmd/bin folder is for storing the main.go file that will run the API server. this main.go file will call the cmd/server package to run the API server or with flag seed to seed the database with dummy data.
• internal folder is for storing the internal packages of the API server.
  • adapter folder is for storing the adapter struct which holds driving adapters and driven adapters.
    • driving adapters are the adapters that will be used in the API handler to interact with the service. e.g. Rest Server, CLI, Admin GUI.
    • driven adapters are the adapters that will be used in the service to interact with the repository.
  • infrastucture folder is for storing the infrastructure packages of the API server.
    • config.go is for storing the configuration the service needs.
    • logging.go is for storing the logger configuration.
  • module folder is for storing the modules of the API server that contains the entity, repository, service, and handler of a module.
    • entity is a package that contains the entity struct of a module.
    • repository is a package that contains the repository struct of a module.
    • service is a package that contains the service struct of a module.
    • handler is a package that contains the handler struct of a module.
  • route folder is for storing the route struct of the API server.
  • logs folder is for storing the log files of the API server.
  • pkg folder is for storing the common functions that will be used in the API server.

How to migrate and seed the database

• please read the db/migrations/readme.md file to know how to migrate the database.
• to seed the database with dummy data, run the command go run cmd/bin/main.go seed -table=product_categories -total=10 to seed the product_categories table with 10 dummy data.

How to create a new module

• there is a folder withing the internal/module folder named z_template.
• Copy the folder z_template and rename it to your module name.
• inside the folder, you will see folders named entity, repository, service, and handler.
  • entity folder is for storing the entity struct of your module. It is a struct that represents the data model (request and response commonly known as DTO and database model commonly known as DAO) of your module.
  • repository folder is for storing the repository struct of your module. It is a struct that contains the database operations of your module.
  • service folder is for storing the service struct of your module. It is a struct that contains the business logic of your module.
  • handler folder is for storing the handler struct of your module. It is a struct that contains the API handler of your module.
  • ports folder is for storing the ports of your module. It is a struct that contains the interfaces of your module.

Write code step by step

1. Read the requirements and create the structs in the entity folder (DTO and DAO).
2. Create contract interfaces in the ports folder.
3. Implement the interfaces in the repository folder.
4. Implement the interfaces in the service folder.
5. Create the handler in the handler/rest if it is a REST API. If it is a CLI, create the handler in the handler/cli folder and so on.
6. Create injection in folder handler/rest if it is a REST API. If it is a CLI, create the injection in the handler/cli folder and so on.