Rate limiting middleware

in ASP.NET Core using .NET 8.0

It is a concept commonly associated with an API, where it states (a rate limiter in a web API) is a mechanism used to control the number of requests that a client can make to an API within a certain time frame. It helps prevent API misuse or abuse by limiting the number of requests from a particular client or IP address, ensuring fair usage and protecting server resources from being overwhelmed.

Note: This concept has been integrated as a middleware with .NET 7 and later .

In the .Net environment, we have 4 types of algorithms that we can use in this regard:

-Fixed window limiter
-Sliding window limiter
-Token bucket limiter
-Concurrency limiter

in the end
These rate-limiting algorithms can also be fine-tuned using additional parameters, such as client IP addresses or user authorization, to impose more detailed limits tailored to specific user profiles. By implementing rate limiting with precise parameters, API providers can ensure optimal performance, fair resource allocation, and protection against abuse across all user interactions with the API.

More resources 😎👨‍💻

• https://www.youtube.com/watch?v=bOfOo3Zsfx0
• https://learn.microsoft.com/en-us/aspnet/core/performance/rate-limit?view=aspnetcore-8.0