Fetch Rewards Mobile Coding Challenge

Overview

This project implements the Fetch Rewards Mobile Coding Challenge, which involves fetching and displaying a list of items from a given API. The app retrieves data, filters out invalid entries, and presents a grouped and sorted list in a user-friendly UI. The requirements are outlined in https://fetch-hiring.s3.amazonaws.com/mobile.html.

This is a multi-module project using Gradle convention plugins that share logic between modules. More can be learned from:

• https://docs.gradle.org/current/samples/sample_convention_plugins.html
• https://developer.squareup.com/blog/herding-elephants/
• https://developer.android.com/topic/modularization

NOTE: This project is overengineered on purpose (multi-modules, Room, etc) just to showcase my expertise in these areas. In a project this small, these technologies are very much overkill.

Features

Required

• Fetch data from the provided API.
• Filter out items with blank or null names.
• Group items by listId.
• Sort items first by listId and then by name.
• Display the processed list in a clean UI.

Extra

• Stores data in Room database
• Search by name in list
• Pull to refresh
• Robust error handling with Snackbars based upon different error scenarios (http errors, storage error, etc.)

Tech Stack

• Kotlin for development.
• Jetpack Compose for UI.
• Hilt for Dependency Injection.
• Retrofit for API calls.
• Room for local caching.
• Navigation for screen routing.
• Multi-Module for separation of concerns
• Coroutines & Flow for asynchronous operations.
• JUnit & Mockito for unit testing.

Screenshots

List

Details

Some Errors

Testing

Many of the classes are united tested including ViewModels, Repositories, and others.

To run unit tests, execute:

./gradlew testDebugUnitTest

Future Improvements

• Implement pagination for large datasets.
• Improve UI/UX with animations and Material Design elements.