API Endpoints & Integration

Relevant source files

The following files were used as context for generating this wiki page:

• README.md
• pubspec.yaml
• lib/main.dart
• lib/api/api_service.dart
• lib/models/user_model.dart

The fikak_app utilizes a structured approach to handle network communications and data persistence. The integration layer is primarily built using the Flutter framework, leveraging the http package for RESTful API interactions and standard JSON serialization for data modeling. This system serves as the bridge between the mobile client's user interface and the backend services.

The architecture follows a repository-like pattern where specific service classes encapsulate the logic for HTTP requests, ensuring that the UI components remain decoupled from the underlying network implementation details.

Network Layer Architecture

The application manages network requests through a centralized service structure. This ensures consistent error handling, header management, and base URL configuration across all outgoing requests.

API Service Flow

The communication flow starts from a user action in the UI, which triggers a method in the service layer. The service layer then constructs the request, executes it via the HTTP client, and parses the resulting JSON into strongly-typed models.

The diagram above illustrates the typical data flow from a user interaction to a backend response and back to the display layer.
Sources: lib/api/api_service.dart, lib/main.dart

Data Modeling & Serialization

Data received from API endpoints is converted into Dart objects using the UserModel and other relevant data structures. This process involves factory constructors designed to handle JSON mapping.

Field	Type	Description
id	String	Unique identifier for the user or resource
email	String	User's primary contact email address
name	String	Display name of the user
token	String	Authentication bearer token used for secured requests

Sources: lib/models/user_model.dart

JSON Conversion Example

The following snippet demonstrates how the application handles incoming JSON data to create object instances:

factory UserModel.fromJson(Map<String, dynamic> json) {
  return UserModel(
    id: json['id'],
    email: json['email'],
    name: json['name'],
  );
}

Sources: lib/models/user_model.dart:10-16

API Endpoints Summary

The application interacts with several key functional areas via REST endpoints. Most requests follow the standard POST/GET methodology.

Authentication Endpoints

Securing user sessions involves exchanging credentials for an access token.

• POST /login: Authenticates a user and returns a session token.
• POST /register: Creates a new user profile in the system.

Integration Components

The following table lists the core dependencies used for API integration:

Dependency	Purpose
http	Providing low-level HTTP request capabilities
json_annotation	Facilitating automatic code generation for JSON parsing
provider	Managing state and injecting services into the widget tree

Sources: pubspec.yaml:15-25

Sequence of a Request

When the application performs a data fetch, it undergoes a lifecycle of initialization, request execution, and state update.

Configuration & Environment

The application configuration includes settings for base URLs and timeout durations, typically initialized at the start of the application lifecycle in the main entry point.

Parameter	Default Value	Description
baseUrl	https://api.fikak.example	The root URL for all API communications
timeout	30 seconds	Max duration to wait for a server response

Sources: lib/main.dart:5-15

The integration system in fikak_app is designed for scalability, allowing for the easy addition of new endpoints by extending the api_service.dart and creating corresponding models in the models directory. This modular approach ensures that the application can evolve with backend changes without significant refactoring.