[handler]
↓↓↓↓
[usecase]
↓↓↓↓
[domain]
↑↑↑↑
[infrastructure]
.
├── api # Configure the api server
├── config
├── domain # Implementation related to business logic
├── handler # Implementations related to Request and Response
│ └── tweet
├── infrastructure # Implementation related to technology
│ ├── elastic
│ ├── mysql
├── usecase # Implementation of usecase involved
├── log # Folder for log output
└── logger # Logging process (global)