| API | Description | Request body | Response body |
|---|---|---|---|
| GET /api/todo | Get all to-do items | None | Array of to-do items |
| GET /api/todo/{id} | Get an item by ID | None | To-do item |
| POST /api/todo | Add a new item | To-do item | To-do item |
| PUT /api/todo/{id} | Update an existing item | To-do item | None |
| PATCH /api/todo/{id} | Update an existing item | To-do item | None |
| DELETE /api/todo/{id} | Delete an item. | None | None |
The following diagram show the basic design of the app. 