Endpoint Service Filters in .NET APIs

Ibrahim Jaber
3 min readNov 29, 2023

Greetings, fellow code enthusiasts! Today, we’re delving into the enchanting world of .NET APIs, and trust me, we’ve got a spell that will level up your coding prowess — Endpoint Service Filters! Imagine these filters as your coding companions, ready to tackle real-world problems with elegance and efficiency.

The Scene: An Educational Business Dilemma

Picture this: You’re in the throes of creating a stellar API for a bustling e-commerce platform. Your endpoints are the gateways to a world of products, transactions, and user experiences. But, ah, there’s a challenge. You want to add a layer of magic to these endpoints — something that can handle common tasks across multiple endpoints, like logging or authentication.

Enter Endpoint Service Filters, your knights in shining armor! These filters allow you to sprinkle that magic consistently across your endpoints, making your codebase cleaner, more maintainable, and downright enchanting.

The Quest Begins: What Are Endpoint Service Filters?

Before we embark on this magical journey, let’s demystify what Endpoint Service Filters actually are. In the realm of .NET APIs, these filters are like trusty assistants that can be applied globally to your endpoints. They help in executing specific logic before or after the endpoint handles the request.

In simpler terms, imagine you have a squad of helpers waiting to assist every traveler at the entrance of your castle. They can check passports, open gates, and ensure a smooth entry — all without bothering the main gatekeeper (your endpoint logic). That’s the power of Endpoint Service Filters!

The Spellbook: Why Use Endpoint Service Filters?

Now, you might wonder, “Why should I bother with these magical filters?”

  1. Consistency Across Endpoints: With Endpoint Service Filters, you can ensure that common functionalities (like logging or authentication) are applied consistently across all your endpoints. No need to repeat the same lines of code over and over.
  2. Cleaner Code: Your endpoint logic remains pristine and focused on its core purpose. Filters handle the…



Ibrahim Jaber

Software developer | Programming and Blockchain enthusiast | If you'd like to buy me coffee: https://ko-fi.com/ibrahimjaber