Скачать или смотреть Boost Your ASP.NET Core Identity's Performance by Optimizing GetUserAsync Calls

Discover efficient methods to enhance the performance of `GetUserAsync` calls in your ASP.NET Core Identity applications.
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Improving Performance of GetUserAsync Calls in ASP.NET Core Identity

If you're developing an ASP.NET Core MVC project using C# and ASP.NET Core Identity, you may have encountered performance issues related to repeated calls to retrieve the current user information, specifically through methods like GetUserAsync. This repeated querying can slow down your application, leading to inefficiencies and a poor user experience. Luckily, there are strategies to mitigate this problem. In this guide, we'll explore a robust solution that helps streamline user retrieval without compromising application performance.

The Challenge

In a typical controller action where you read or write to a database, you often need to obtain the current user's ApplicationUser.Id. This relies on a method like:

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The issue here is the need to constantly call GetUserAsync, leading to unnecessary overhead and potentially degrading performance.

A Solution: Utilize ApplicationUserAccessor

One effective approach to improve performance is to create a singleton-accessor class, which will execute a user retrieval task just once per request. Here's how you can implement this:

Step 1: Create the ApplicationUserAccessor Class

This class will store the result of the user retrieval so that you don’t have to keep calling the user manager. Below is an implementation of the ApplicationUserAccessor class:

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Step 2: Register the ApplicationUserAccessor Class

Ensure you register this class with the Dependency Injection (DI) container as a scoped service. This is crucial because a new instance will be created for each request, helping manage user state efficiently:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Use ApplicationUserAccessor in Controllers

With the ApplicationUserAccessor in place, you can now retrieve the current user in your controllers without the overhead of repetitive calls to GetUserAsync. Here’s an example of how you might use it:

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Optional: Implement Caching

For further performance enhancements, you could consider caching the retrieved user information. By injecting a longer-lived cache instance into the ApplicationUserAccessor, you can avoid repeated user lookups even further, especially for data that doesn't change often.

Conclusion

By implementing the ApplicationUserAccessor, you can significantly enhance the performance of retrieving user information in your ASP.NET Core Identity applications. This approach minimizes redundant calls and ensures that your application runs more efficiently. Embrace these techniques to provide a smoother experience for users while maintaining clean and readable code in your ASP.NET applications.

Feel free to explore and adapt the solution presented here to better fit your specific use cases. Happy coding!