Implement Exchange Rate Provider

[jonintdev]

Pull Request: Create Exchange Rate Updater Project and Add Czech National Bank Connector

Overview

My main aim was to build a project that's easy to understand, use, and maintain. This led to the creation of two projects: ExchangeRateUpdater and ExchangeRateUpdater.UnitTests.

Changes Made

General

• Updated to .NET 7.
• Cleaned up the structure and organization of code in Program.cs.
• Added Dependency Injection.
• Moved data to appsettings.json and made it easier to access with a dedicated class.

Architecture

Followed the Clean Architecture approach:

• Application: Contains the abstractions of the project.
• Domain: Holds models, enums, and constants.
• Infrastructure: Implements the features of the project.

Testing

Added the ExchangeRateUpdater.UnitTests project to check some logic of the application.

How to Review

1. Clone this repository.
2. Run the application. Go to the ExchangeRateUpdater folder: use dotnet run.
3. Test the project. Go to the ExchangeRateUpdater folder: use dotnet test.

Development Environment

Created on a Windows 10 computer using Visual Studio 2022 Preview 17.5.0 Preview and .NET 7.

Additional Notes

I aimed to make this solution scalable with the Factory Pattern, but I also tried to keep it as simple as possible (that's why I used folders instead of separate projects, for instance).