Elegant Global Error Handling Using Middleware In ASP.NET Core

Error handling in APIs is very important. In ASP.NET Core, it is very simple to add global error handling using middleware. In this video, I'll show you how to create a global error handling middleware and it to our Web API.

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Chapters
0:00 What is middleware?
1:20 First approach: With RequestDelegate
3:34 Manipulating the HTTP Response
4:14 Second approach: Convention based
6:55 Configuring the middleware
8:15 Third approach: Factory based
10:00 Improving the global error handler
11:38 Configuring factory-based middleware
12:26 How it works

[Uncle-Dee]

Thank you Milan...
This was a very clear and beautiful explanation.

[pawegruba]

I think it might be worth to mention something about Exception Filters, I know they are a bit different but in general are also used to handle exceptions

[spaces]

Thank you, Milan. I'm using your example in a new project. It's already helpful.

[nikuniku]

how simple and efficient, really good job.

[AmjadKhateeb]

Thanks for the great video.
I think using the status code again in the body of the response is unnecessary duplicate.
I also prefer to add a RefID in the response body which is linked to the error log. So, in case that the client contacted the support team, they can easily find the original error log.

[lazziemunetsi]

Great stuff, thanks very much Milan.👏

[krishanthadharmasiri]

Great video, thanks, is there any particular reason to add the middleware as Transient why not scoped?

[asadnaeem]

Awesome video, highly recomended to others

[abdelrahmananwar]

i liked your way of explanation, thank you.

[yaKaiZen]

The 3rd option was new learning for me and enjoyed the custom JSON response throwing most! Thanks, ​ @Milan Jovanović for your community effort!

[kodindoyannick]

Great Great content! Thank you so much Milan.

[nayanc]

@milan I wish you had explained the sequence of middlewares invocation; how order matters

[zik-]

Like. Unless you need to have additional data from failed request middleware is a good option. In other cases consider exception filters.btw: may be a nice topic middleware vs filter

[ssushovan]

Excellent video!
But, could you tell what's the benefit of using 3rd approach here?

[francoislepron]

Yes, I have learned something new, but I can not tell that I master it. Your audience is not only composed by experts, but also by intermediate developers. I would be really interested in more details explanations or links on the documentations where we can find what you don't explain, because you assume that developers already know these fundamental concepts. It is an hard work, but this is how Brackeys has reached more than one million of followers for Unity3D tutorials.

[coder]

Hey, can you shed some light on use of AddTransient vs AddScoped in this case?

[filthkyory]

Milan... How to configure an inline watch in your visual studio, could you tell us?

[Marcos-XurryPET]

Nice work, Milan Jovanovic!!!

How to use middelware to make filters, orderby and pagination???, Thank u.

Regards.

[sunzhang-dv]

ExceptionHandlingMiddleware switch need to add OrderNotFoundException, Write it every time?

[adilbangush]

Can you make one video about Extending ProblemDetails, using with the above global error handling in which a developer can include the custom payload of an error information.