ecommerce

E-commerce Flutter Project

This project implements an e-commerce application using Flutter and adheres to Clean Architecture principles for better separation of concerns, maintainability, and testability.

Architecture Overview

The project is structured around the principles of Clean Architecture, dividing the application into distinct layers:

• Presentation Layer: Handles the UI and user interactions. (Not yet fully implemented in this initial setup)

• Domain Layer: Contains the business logic and entities, independent of any framework. This includes:

  • lib/features/product/domain/entities: Defines core business objects like Product.

  • lib/features/product/domain/repositories: Abstract definitions of data contracts (e.g., ProductRepository).

  • lib/features/product/domain/usecases: Encapsulates specific business rules and operations (e.g., CreateProduct, GetAllProducts).

• Data Layer: Implements the contracts defined in the Domain Layer, handling data sources (e.g., APIs, databases).

  • lib/features/product/data/models: Data models (e.g., ProductModel) for serialization/deserialization.

Project Structure

• lib/core: Contains shared core components, error handling logic, and common utilities.
• lib/features: Houses feature-specific modules. Each feature (e.g., product) has its own dedicated directory.
  • lib/features/product:
    • data: Data-related implementations for the product feature.
      • models: Data models for product entities.
• test: Contains all unit and widget tests, mirroring the lib directory structure.

Data Flow

1. UI Interaction: User interacts with the UI (Presentation Layer).
2. Usecase Execution: The UI dispatches an action that triggers a usecase (Domain Layer).
3. Repository Call: The usecase calls an abstract method on a repository interface (Domain Layer).
4. Data Retrieval/Manipulation: The concrete implementation of the repository (Data Layer) interacts with data sources (e.g., network, local database) to retrieve or manipulate data.
5. Data Conversion: Data models from the Data Layer are converted into domain entities before being passed back to the Domain Layer.
6. Result to UI: The usecase returns the result (either success or failure) to the Presentation Layer, which then updates the UI accordingly.

Getting Started

This project is a starting point for a Flutter application.

To run this project:

1. Clone the repository.
2. Navigate to the project directory.
3. Run flutter pub get to install dependencies.
4. Run flutter run to launch the application.

Testing

Unit tests are located in the test directory. To run all tests, execute:

flutter test

Resources

• Lab: Write your first Flutter app
• Cookbook: Useful Flutter samples

For help getting started with Flutter development, view the online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.