Boosting Your ASP.NET Core App with Multi-Layer Caching: A Comprehensive Guide

Caching is a powerful tool for enhancing the performance of web applications. By storing frequently accessed data closer to your application, you can reduce the load on your database and improve response times. In this article, we’ll dive into how to implement multi-layer caching in an ASP.NET Core application, utilizing both in-memory caching and Redis.

Understanding the Need for Multi-Layer Caching

Before we jump into the code, let’s explore why you might need a multi-layer caching strategy. Imagine your application relies on data that rarely changes but is accessed frequently. Fetching this data from the database every time can be costly in terms of time and resources.

By implementing a multi-layer cache:

• In-Memory Cache (fastest): Store data locally in the server’s memory for ultra-fast access.
• Redis Cache (distributed): Store data in a distributed cache like Redis, which is shared across different instances of your application.

This layered approach allows your application to first attempt to retrieve data from the fastest layer (in-memory). If the data isn’t found there, it moves to the next layer (Redis), and finally, if necessary, it retrieves the…