JetAuth: A Complete Guide to Secure Login, API Calls & Token Management in Jetpack Compose

JetAuth is a modern Android authentication app built using Jetpack Compose and Kotlin.
It provides a secure and scalable login system by following MVVM + Clean Architecture principles.

🚀 Key Technologies Used

• ✅ Jetpack Compose – Modern UI toolkit for building beautiful and reactive UI.
• ✅ Ktor Client – Lightweight and efficient networking for API calls.
• ✅ Jetpack Compose Navigation – Manages screen transitions seamlessly.
• ✅ Kotlin Serialization – Simplifies JSON parsing for API responses.
• ✅ Hilt (Dependency Injection) – Ensures modularity and easy testing.
• ✅ ViewModel + StateFlow – Manages UI state efficiently.
• ✅ DataStore – Stores authentication tokens securely.

📖 About This Tutorial

This Android Login Tutorial will guide you step by step in building a complete authentication system with:

• ✅ Secure API calls using Ktor Client
• ✅ Token storage and automatic refresh logic
• ✅ MVVM + Clean Architecture for better maintainability
• ✅ Dependency Injection with Hilt
• ✅ State management using ViewModel & StateFlow

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Demo

Check it on YouTube

📦 Installation

Requirements

Before you begin, make sure you have the following:

• Android Studio Meerkat | 2024.3.1 or greater.
• AGP (Android Gradle Plugin): Version 8.9.0 or greater.
• Kotlin: Version 2.1.10 or greater.
• SDK Version: Android 5.0 (API level 21) or higher.

Steps to Install

1. Clone the repository:

   git clone https://github.com/probelalkhan/JetAuth.git

2. Open the project in Android Studio.
3. Build and run the project If you want to run the app on an emulator or real device, just click the Run button in Android Studio.

🔌 API Integration

This project uses the mock API service provided by DummyJSON. You can refer to the DummyJSON API documentation for more details on available endpoints and request formats.

Base URL Configuration

The base URL for the API is defined in the app-level build.gradle file. Below is the configuration used for both the debug and release build types:

android {
    buildTypes {
        debug {
            isMinifyEnabled = false
            buildConfigField("String", "BASE_URL", "\"dummyjson.com\"")
        }
        release {
            isMinifyEnabled = true
            proguardFiles(
                getDefaultProguardFile("proguard-android-optimize.txt"),
                "proguard-rules.pro",
            )
            buildConfigField("String", "BASE_URL", "\"dummyjson.com\"")
        }
    }
}

📸 Screenshots

Once logged in, users are taken to the home screen.

📝 License

This project is licensed under the MIT License. You can freely use, modify, and distribute the code. For more details, check the MIT License.

🤝 Help & Support

If you encounter any issues or need help with anything, please check the following:

Issues: Look through the issues section to see if your question has already been answered. Documentation: Make sure to read through the README for detailed instructions on setting up and using the app. Community: Ask questions or share feedback by opening a new issue or participating in the discussion.

🌟 Support the Project

If you find this Android Login Tutorial helpful, please consider starring the repository to show your support! ⭐ It helps others find the project and encourages the community to contribute.