# The Back End

The back end is the code that runs on a server, keeping the rules of the business and answering the front end through an API, and in this course you'll write it in C# with ASP.NET Core.

![Cheat sheet: The Back End](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/25eb0770962a40af9f0e26da772b8787.webp)

- Category: Software Development
- Level: Novice
- Tags: API, aspnet-core, back-end, Client and Server, Web API, web-development
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/full-stack-the-back-end-cheat-sheet