FastEndpoints is a free and open-source REST API growth framework for .NET Core that can be utilized to construct light-weight and quick APIs. On this article, we’ll look at this library and learn to use it to construct light-weight APIs in ASP.NET Core functions.

ASP.NET Core helps two built-in approaches to constructing APIs, conventional controllers and minimal APIs. Conventional controllers (i.e., MVC and API controllers in ASP.NET Core) are feature-rich, however they require writing quite a lot of boilerplate code and so they don’t match minimal APIs in efficiency. Minimal APIs are light-weight and quick, however they help solely a minimal set of options.

A 3rd choice is to make use of a third-party library for constructing APIs equivalent to FastEndpoints, which mixes advantages of each controllers and minimal APIs. Whereas minimal APIs are barely sooner than FastEndpoints, FastEndpoints offers a number of options that aren’t supported by minimal APIs together with mannequin binding, price limiting, and caching. Furthermore, for those who use FastEndpoints in lieu of minimal APIs, you’ll be able to make the most of Swagger or OpenAPI to doc your APIs.