API Documentation for [Your Mobile App Name]

This document outlines the API endpoints or services used by [Your Mobile App Name]. Use this as a reference for understanding how the mobile app interacts with backend services.

API Overview

[Provide an overview of your API or backend services. Indicate whether you're using a custom API, Firebase, or other services]

Base URL

Development: http://localhost:8000/api (or your configured endpoint)
Production: [Your production API URL]
Staging: [Your staging API URL] (if applicable)

Authentication

Most endpoints require authentication. Our app uses [Token-based/OAuth/Firebase/etc.] authentication.

Authentication Headers

Include the authentication token in your requests:

Authorization: Bearer [your_token]

Authentication Endpoints

Login

URL: /auth/login
Method: POST

Request Body:

{
  "email": "user@example.com",
  "password": "password123"
}

Success Response:

Code: 200 OK

Content:

{
  "token": "auth-token-here",
  "user": {
    "id": "user-id",
    "name": "User Name",
    "email": "user@example.com",
    "role": "user"
  }
}

Error Response:
- Code: 401 Unauthorized
- Content:
```
{
  "message": "Invalid credentials"
}
```

Register

URL: /auth/register
Method: POST

Request Body:

{
  "name": "User Name",
  "email": "user@example.com",
  "password": "password123"
}

Success Response:

Code: 201 Created

Content:

{
  "message": "User registered successfully",
  "user": {
    "id": "user-id",
    "name": "User Name",
    "email": "user@example.com",
    "role": "user"
  }
}

Error Response:
- Code: 400 Bad Request
- Content:
```
{
  "message": "Email already in use"
}
```

Get User Profile

URL: /auth/me
Method: GET
Authentication Required: Yes

Success Response:

Code: 200 OK

Content:

{
  "user": {
    "id": "user-id",
    "name": "User Name",
    "email": "user@example.com",
    "role": "user"
  }
}

[Resource Name] Endpoints

Get All [Resources]

URL: /[resources]
Method: GET
Authentication Required: Yes
Query Parameters:
- page: Page number (default: 1)
- limit: Items per page (default: 10)
- sort: Field to sort by
- order: Sort order ('asc' or 'desc')
- [Additional parameters]

Success Response:

Code: 200 OK

Content:

{
  "data": [
    {
      "id": "resource-id-1",
      "name": "Resource 1",
      "description": "Description for Resource 1",
      "createdAt": "2023-01-01T00:00:00.000Z",
      "updatedAt": "2023-01-01T00:00:00.000Z"
    },
    {
      "id": "resource-id-2",
      "name": "Resource 2",
      "description": "Description for Resource 2",
      "createdAt": "2023-01-02T00:00:00.000Z",
      "updatedAt": "2023-01-02T00:00:00.000Z"
    }
  ],
  "pagination": {
    "totalItems": 25,
    "totalPages": 3,
    "currentPage": 1,
    "limit": 10
  }
}

Get Single [Resource]

URL: /[resources]/:id
Method: GET
Authentication Required: Yes
URL Parameters:
- id: ID of the resource

Success Response:

Code: 200 OK

Content:

{
  "id": "resource-id",
  "name": "Resource Name",
  "description": "Resource Description",
  "createdAt": "2023-01-01T00:00:00.000Z",
  "updatedAt": "2023-01-01T00:00:00.000Z"
}

Error Response:
- Code: 404 Not Found
- Content:
```
{
  "message": "Resource not found"
}
```

Create [Resource]

URL: /[resources]
Method: POST
Authentication Required: Yes

Request Body:

{
  "name": "New Resource",
  "description": "Description for New Resource",
  "[Additional fields]": "[values]"
}

Success Response:

Code: 201 Created

Content:

{
  "id": "new-resource-id",
  "name": "New Resource",
  "description": "Description for New Resource",
  "createdAt": "2023-01-01T00:00:00.000Z",
  "updatedAt": "2023-01-01T00:00:00.000Z"
}

Error Response:

Code: 400 Bad Request

Content:

{
  "message": "Validation error",
  "errors": [
    {
      "field": "name",
      "message": "Name is required"
    }
  ]
}

Update [Resource]

URL: /[resources]/:id
Method: PUT or PATCH
Authentication Required: Yes
URL Parameters:
- id: ID of the resource

Request Body:

{
  "name": "Updated Resource Name",
  "description": "Updated Description",
  "[Additional fields]": "[values]"
}

Success Response:

Code: 200 OK

Content:

{
  "id": "resource-id",
  "name": "Updated Resource Name",
  "description": "Updated Description",
  "createdAt": "2023-01-01T00:00:00.000Z",
  "updatedAt": "2023-01-02T00:00:00.000Z"
}

Error Response:
- Code: 404 Not Found
- Content:
```
{
  "message": "Resource not found"
}
```

Delete [Resource]

URL: /[resources]/:id
Method: DELETE
Authentication Required: Yes
URL Parameters:
- id: ID of the resource

Success Response:

Code: 200 OK

Content:

{
  "message": "Resource deleted successfully"
}

Error Response:
- Code: 404 Not Found
- Content:
```
{
  "message": "Resource not found"
}
```

Mobile-Specific Endpoints

Device Registration

URL: /devices/register
Method: POST
Authentication Required: Yes

Request Body:

{
  "deviceToken": "fcm-token-for-push-notifications",
  "deviceType": "android | ios",
  "deviceModel": "Device model information"
}

Success Response:

Code: 201 Created

Content:

{
  "message": "Device registered successfully",
  "deviceId": "device-id"
}

App Configuration

URL: /config
Method: GET
Authentication Required: Optional

Success Response:

Code: 200 OK

Content:

{
  "latestVersion": "1.0.1",
  "minimumRequiredVersion": "1.0.0",
  "forceUpdate": false,
  "maintenanceMode": false,
  "features": {
    "featureA": true,
    "featureB": false
  }
}

Error Handling

All endpoints follow a consistent error response format:

{
  "message": "Error message",
  "errors": [
    {
      "field": "field_name",
      "message": "Specific error message for this field"
    }
  ],
  "status": 400,
  "timestamp": "2023-01-01T00:00:00.000Z"
}

Common Status Codes

200 OK: Request succeeded
201 Created: Resource created successfully
400 Bad Request: Invalid request (validation errors, etc.)
401 Unauthorized: Authentication required or failed
403 Forbidden: Not authorized to access the resource
404 Not Found: Resource not found
422 Unprocessable Entity: Request understood but could not be processed
500 Internal Server Error: Server error

Rate Limiting

API calls are limited to [limit] requests per [time period] per device. When the rate limit is exceeded, the API will respond with:

Code: 429 Too Many Requests

Content:

{
  "message": "Rate limit exceeded. Try again after [time]",
  "status": 429,
  "timestamp": "2023-01-01T00:00:00.000Z"
}

Headers:
- X-RateLimit-Limit: [requests per time period]
- X-RateLimit-Remaining: [requests remaining]
- X-RateLimit-Reset: [timestamp when the limit resets]

Data Models

User

{
  "id": "string",
  "name": "string",
  "email": "string",
  "role": "string (user, admin)",
  "createdAt": "ISO date string",
  "updatedAt": "ISO date string"
}

[Resource Model]

{
  "id": "string",
  "name": "string",
  "description": "string",
  "userId": "string (references User)",
  "[Additional fields]": "[types]",
  "createdAt": "ISO date string",
  "updatedAt": "ISO date string"
}

API Versioning

The API is versioned using URL path versioning. The current version is v1:

/api/v1/[resources]

Pagination

Collection endpoints support pagination with the following query parameters:

page: Page number (default: 1)
limit: Items per page (default: 10)

Pagination metadata is included in the response:

{
  "data": [...],
  "pagination": {
    "totalItems": 25,
    "totalPages": 3,
    "currentPage": 1,
    "limit": 10
  }
}

Working with the API in Dart/Flutter

Example API Service Class

import 'dart:convert';
import 'package:http/http.dart' as http;

class ApiService {
  final String baseUrl;
  final String token;
  
  ApiService({required this.baseUrl, this.token = ''});
  
  Future<Map<String, String>> get _headers async {
    return {
      'Content-Type': 'application/json',
      'Authorization': token.isNotEmpty ? 'Bearer $token' : '',
    };
  }
  
  Future<dynamic> get(String endpoint) async {
    final response = await http.get(
      Uri.parse('$baseUrl/$endpoint'),
      headers: await _headers,
    );
    
    return _handleResponse(response);
  }
  
  Future<dynamic> post(String endpoint, Map<String, dynamic> data) async {
    final response = await http.post(
      Uri.parse('$baseUrl/$endpoint'),
      headers: await _headers,
      body: jsonEncode(data),
    );
    
    return _handleResponse(response);
  }
  
  // Add put, delete methods similarly
  
  dynamic _handleResponse(http.Response response) {
    if (response.statusCode >= 200 && response.statusCode < 300) {
      return jsonDecode(response.body);
    } else {
      throw Exception('API Error: ${response.statusCode} - ${response.body}');
    }
  }
}

Using the API in Dart/Flutter

// Example usage in a Flutter app
final apiService = ApiService(
  baseUrl: 'https://api.yourdomain.com',
  token: 'user-auth-token',
);

// Get user profile
Future<void> getUserProfile() async {
  try {
    final userData = await apiService.get('auth/me');
    print('User data: $userData');
  } catch (e) {
    print('Error getting user profile: $e');
  }
}

// Create a resource
Future<void> createResource(Map<String, dynamic> resourceData) async {
  try {
    final newResource = await apiService.post('resources', resourceData);
    print('Created resource: $newResource');
  } catch (e) {
    print('Error creating resource: $e');
  }
}

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API Documentation for [Your Mobile App Name]

API Overview

Base URL

Authentication

Authentication Headers

Authentication Endpoints

Login

Register

Get User Profile

[Resource Name] Endpoints

Get All [Resources]

Get Single [Resource]

Create [Resource]

Update [Resource]

Delete [Resource]

Mobile-Specific Endpoints

Device Registration

App Configuration

Error Handling

Common Status Codes

Rate Limiting

Data Models

User

[Resource Model]

API Versioning

Pagination

Working with the API in Dart/Flutter

Example API Service Class

Using the API in Dart/Flutter

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API Documentation for [Your Mobile App Name]

API Overview

Base URL

Authentication

Authentication Headers

Authentication Endpoints

Login

Register

Get User Profile

[Resource Name] Endpoints

Get All [Resources]

Get Single [Resource]

Create [Resource]

Update [Resource]

Delete [Resource]

Mobile-Specific Endpoints

Device Registration

App Configuration

Error Handling

Common Status Codes

Rate Limiting

Data Models

User

[Resource Model]

API Versioning

Pagination

Working with the API in Dart/Flutter

Example API Service Class

Using the API in Dart/Flutter