Global Error Handling and Logging in ASP.NET Core 7 MVC: A Comprehensive Guide for Optimizing Your Web Application
Furkan G?zükara
PhD. Computer Engineer. Produces Content For FLUX, LoRA, Fine Tuning, Stable Diffusion, SDXL, Training, DreamBooth Training, Deep Fake, Voice Cloning, Text To Speech, Text To Image, Text To Video, Generative AI, LLMs
ASP.NET Core 7 MVC is a powerful framework for building web applications, and one important aspect of any application is proper error handling and logging. In this article, we will explore how to implement global error handling and logging in ASP.NET Core 7 MVC.
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First, let's discuss error handling. In ASP.NET Core 7 MVC, the exception handling middleware is responsible for catching any unhandled exceptions that occur during the processing of a request. To implement global error handling, we can create a custom middleware that will catch any unhandled exceptions and redirect the user to an error page or return an appropriate error code.
To create a custom middleware, we can create a new class that inherits from the IMiddleware interface and implements the InvokeAsync method. In this method, we can catch any unhandled exceptions and redirect the user to an error page or return an appropriate error code.
For example:
Once we have created our custom middleware, we need to register it as a service in the Program class. This can be done by adding the following line to the builder.Services method:
Then in the Main method, you can use the app.UseMiddleware<ErrorHandlingMiddleware>() method to add the custom middleware to the request pipeline.
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Now that we have global error handling in place, let's move on to logging. In ASP.NET Core 7 MVC, logging is implemented using the ILogger<T> interface from the Microsoft.Extensions.Logging namespace. Then in the Program.cs file, you can configure the logging service in the builder.Services inject it into any class you want to use it.
After that, in any class where you want to use logging, you can inject the ILogger<T> interface, where T is the type of the class. Then you can use the ILogger object to log messages at different levels such as Information, Warning, Error and so on.
In summary, to implement global error handling and logging in ASP.NET Core 7 MVC, we can create a custom middleware and use the built-in logging functionality provided by the ILogger<T>
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.NET Developer la Empact
2 年Very interesting and well explained article. I have some questions : 1. Why is it necessary to register the custom error handling middleware as transient in services? 2. What is your recomandation for an API in which we created our own global error handling piece of middleware . Should we have the middlewares registered in the following order: If we are running in dev Use developer exception page Use our custom error handling middleware Else when we are in prod Use our custom error handlingmiddleware UseExceptionHandler /Error/ Use htst UseStatusCodePagesWithReexecute /error
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2 年Love this
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2 年Great post! Furkan G?zükara
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2 年May I ask why did you registered ErrorHandlingMiddleware as Transient and not as Scoped?