C# / .NET programming

For this project, you will add a database persistence component to the respective UWP client-server application and implement basic CRUD with a persistent database. Your implementation may be in MongoDB, FireBase, SQL, MySQL, Postgres, a file-system based implementation you create on your own, a custom memory management implementation based on ancient Sumerian runes, etc. The only requirement is that when a user adds, updates, or deletes a todo\appointment in the client side app that change is reflected upon closing and relaunching the app even when the API solution or the entire machine hosting the API is rebooted. Additionally, you MUST submit a video demonstrating this functionality. Your video must demonstrate: 1. Adding a todo and an appointment 2. Updating a todo and an appointment 3. Deleting a todo and an appointment Each of your demonstrations should show how you are persisting to a storage location and no longer using in memory storage on the web server.