# Backend API Requirements

This folder contains specifications for backend changes needed to support the frontend features.

## Quick Summary

| Feature | Status | Priority | Files to Create/Modify |
|---------|--------|----------|----------------------|
| Specimen Delete | Missing | High | Routes.php, SpecimenController.php |
| User CRUD | Not Implemented | High | UserController.php, UserModel.php, Routes.php |

## Directory Structure to Create

```
app/
├── Config/
│   └── Routes.php                    # MODIFY - Add new routes
├── Controllers/
│   └── Specimen/
│       └── SpecimenController.php    # MODIFY - Add delete method
│   └── User/                         # CREATE
│       └── UserController.php        # CREATE - Full CRUD
├── Models/
│   └── User/                         # CREATE
│       └── UserModel.php             # CREATE - User database model
```

## Files

1. **specimen-delete.md** - Specimen delete endpoint specification
2. **user-api.md** - Complete User CRUD API specification
3. **code-templates/** - Ready-to-use code templates
   - UserController.php
   - UserModel.php
   - Routes-additions.php

## Testing Checklist

After implementation, verify these endpoints work:

```bash
# Specimen Delete
curl -X DELETE http://localhost:8000/api/specimen/123

# User CRUD
curl http://localhost:8000/api/users
curl http://localhost:8000/api/users/1
curl -X POST http://localhost:8000/api/users -H "Content-Type: application/json" -d '{"username":"test","email":"test@test.com"}'
curl -X PATCH http://localhost:8000/api/users -H "Content-Type: application/json" -d '{"UserID":1,"username":"updated"}'
curl -X DELETE http://localhost:8000/api/users/1
```

## Questions?

Contact the frontend team if you need clarification on data structures or expected responses.