KimpTracker

Get cryptocurrency prices of Upbit & Binance and Kimchi Premium between them.

Kimp.Tracker.Demo.video.1.mp4

Architecture

Overview

Technology	Usage
Retrofit	Handles network tasks
Room	Manages local database operations
Coroutine	Manages background tasks and makes the app more responsive
Hilt	Manages dependency injection
SharedFlow	Handles data sharing among multiple collectors
Widget	Widget that displays prices right on the home screen
MVVM (Model-View-ViewModel)	Separates the user interface logic from business logic
AWS Lambda	Handles serverless back-end processes
MongoDB Cloud	Used for cloud-based database management

What I learned

• Navigation between fragments without registering icons in the NavBottomBar, achieved through the use of LiveData. This expanded my understanding of Android navigation components.
• The correct use of SharedFlow to periodically update data via the REST API within the application. This allowed me to efficiently handle data sharing among multiple collectors in a reactive programming paradigm, improving the app's responsiveness and performance.
• What I need to do to make a widget in Android. I need to create AppWidgetProvider class and metadata xml for it.
• Using MongoDB Cloud for backend cloud-based database management. This gave me hands-on experience of setting up and managing a cloud-based MongoDB database.

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