Movies App

A SwiftUI app that fetches and displays top-rated movies and movies by genre using the TMDB API. The app leverages Swift Concurrency (async/await and MainActor) and follows the MVVM architecture for clean code structure.

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Features

• Discover Top-Rated Movies: View a list of the highest-rated movies from TMDB.
• Browse by Genre: Explore movies categorized by genres like Action, Comedy, Drama, and more.
• Swift Concurrency: Smooth and efficient data fetching using async/await.
• Responsive UI: Built with SwiftUI for seamless and adaptive user experience.
• Modern Architecture: Implements the MVVM pattern for scalability and maintainability.

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Screenshots

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Requirements

• iOS 16.0+
• Xcode 14.0+
• TMDB API Key (Sign up at TMDB API to get your API key.)

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Installation

1. Clone the Repository:

   git clone https://github.com/yourusername/swiftui-movies-app.git
   cd swiftui-movies-app

2. Install Dependencies:

   • Open the project in Xcode, and it will automatically fetch dependencies via Swift Package Manager.

3. Set up TMDB API Key:

   • Add your API key to Constants.swift:

     struct Constants {
         static let apiKey = "YOUR_API_KEY_HERE"
         static let baseURL = "https://api.themoviedb.org/3"
     }

4. Run the App:

   • Select your target device in Xcode and press Run (⌘R).

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Architecture Overview

This app follows the MVVM (Model-View-ViewModel) architecture:

Model

• Represents movie-related data structures (Movie, Genre, etc.).
• Handles decoding of JSON responses from the TMDB API.

ViewModel

• Acts as the intermediary between Views and Models.
• Manages state, processes data, and fetches information using async/await.

View

• SwiftUI-based components for rendering the UI.
• Reactive UI updates with @State and @Published properties.

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Key Files

• APIManager.swift: Handles network requests to the TMDB API using URLSession and async/await.
• MovieViewModel.swift: Business logic and state management for movies.
• GenreViewModel.swift: Fetches and filters movies based on genre.
• Constants.swift: Holds API keys and base URLs.
• Movie.swift: Model for movie data from TMDB.
• Genre.swift: Model for genres.

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Swift Concurrency

The app utilizes Swift Concurrency for efficient data fetching:

• async/await:
  • Used in API calls for cleaner, asynchronous code.

  func fetchMovies() async throws -> [Movie] {
      let url = URL(string: "\(Constants.baseURL)/movie/top_rated?api_key=\(Constants.apiKey)")!
      let (data, _) = try await URLSession.shared.data(from: url)
      return try JSONDecoder().decode(MovieResponse.self, from: data).results
  }