# API Service Documentation

## Architecture
- **HTTP Client**: Axios with custom wrapper
- **Modular Structure**: Feature-based organization
- **Type Safety**: TypeScript interfaces

## Auth Module

### Methods
- `login(data)`: User authentication
  - Parameters: `{username, password}`
  - Returns: `{access_token}`
  - Content-Type: `application/json`

- `register(formData)`: User registration
  - Parameters: FormData
  - Returns: `{user_id}`
  - Content-Type: `multipart/form-data`

- `getPublicKey()`: Gets RSA public key
  - Returns: Public key string
  - Error Handling: Custom error messages

- `refreshToken()`: Refreshes access token
  - Returns: New `{access_token}`

## Request Wrapper
Located in `axios/service.ts`:
- Base URL configuration
- Request/response interceptors
- Error handling
- Type definitions

## Type Definitions
Each module has corresponding type definitions:
```typescript
// Example from auth/types.ts
interface LoginParams {
  username: string
  password: string
}
```

## Error Handling
- Custom error messages
- Type-safe error responses
- Console logging for debugging