Coding challenge - Weather App

Getting Started

1. Adding the API Key

Before you start, you must obtain an API key from OpenWeatherMap. Once you have the key, add it to the project:

Open the WeatherService.swift file.

Locate the apiKey computed property. Replace the placeholder string with your actual API key.

private var apiKey: String { "YOUR_API_KEY_HERE" }

2. Running the App

Ensure you have the latest version of Xcode installed. Open Klarna_weather_app.xcodeproj and run the app on the desired simulator or device.

Features

• Fetch and display the current weather based on the user's location or a selected city.
• Fetch again by clicking on a button.
• Switch between different temperature units (Kelvin, Celsius, and Fahrenheit) by clicking on the temprature text.
• Search functionality to look up weather by city.
• Support for dark and light theme.

Architecture & Implementation

• The app utilizes the MVVM architecture.
• It employs the Combine framework for reactive programming.
• Networking is handled through a protocol-based approach for easy testing and mocking.
• Error handling is present for both location services and network requests.

Testing

Unit tests can be provided for critical components. Currently due to time constraints, it is only for one case to establish the fact that the code is testable.