How to use Middleware in ASP.NET Core (2 ways of implementing middleware)

Middleware in ASP.Net Core is software components that are assembled into the HTTP pipeline to handle requests and responses. A middleware component can either choose to pass the request to the next component in the pipeline. Or it may choose to end the request. Middleware can perform tasks both before as well as after the next component.
Middleware is nothing but requests delegates which builds the request pipeline. In other words, we can chain requests delegates one after another to build the HTTP pipeline. And each of these requests delegates works with HTTP requests.
In this video, I will walk through how to build middleware to implement custom implementations.
Middleware can be implemented in either of two ways.
The first way is to use one of the existing extension methods:
1. Run
2. Use
3. UseWen
4. Map
5. MapWhen
Or the second way, which is building custom middleware using middleware convention.
The details for implementation of the video is available in my blog here: dotnetcorecent...
The source code for this blog is available in my GitHub repo here: github.com/cho...

[@nickfotopoulos5323]

This is so much easier than I thought it was going to be. Excellent video, thanks!

[@DotNetCoreCentral]

@Nick Fotopoulos, thanks for watching!

[@deepz513]

Excellent you covered the majority of use cases. Thank you

[@DotNetCoreCentral]

Thanks for watching!

[@mohinikadasi5737]

His videos are super fast and practical so that while watching them you don't get chance to break the rhythm. Also they are based on single topics so no 1-2 hrs videos which you feel when it will get over. I liked his style of teaching. Can you please make some quick videos on Angular too?

[@DotNetCoreCentral]

Thanks

[@ramutangudu237]

though it is bit fast the way you are explaining in practical is too good....first time in my life commenting for your comments and want to get habituate with your videos....subscribed :)

[@DotNetCoreCentral]

@Ramu Tangudu, thanks for watching!

[@rochitsen]

Very good and to the point. Found it very helpful in understanding the middleware concept.

[@DotNetCoreCentral]

@Rochit Sen, thanks for watching!

[@SaravanaKumar-bt5xn]

you explained very well. Thank you.

[@DotNetCoreCentral]

@Sarvana Kumar, thanks for watching!

[@eieitheint6519]

Thank you for your excellent explanation.

[@DotNetCoreCentral]

Thanks for watching!

[@tamizhisekar]

You are awesome🙌🏻 Thanks a lot🙏

[@DotNetCoreCentral]

You're welcome 😊

[@Anubis10110]

Thanks for your time and explanation, Excellent

[@DotNetCoreCentral]

@Mohamed Saleh, thanks for watching!

[@ashutoshmishra2170]

Very clear to the topic .thank you so much .

[@DotNetCoreCentral]

@Ashutosh Mishra, thanks for watching!

[@DebasmitSamal294]

hats off... Superb explanation. it made my day

[@DotNetCoreCentral]

Thanks!

[@ve2tax]

Excellent video, thank you!

[@DotNetCoreCentral]

@Stephane Ricard, thanks for watching!

[@AlvaroTorresTatis]

You explained very well. Thank you.

[@DotNetCoreCentral]

Thanks!

[@RAM-ff8dy]

Great topic...is there any chance to make a video on asp net core API project from scratch and use swagger, CRUD, EF core, DTO's, Auto mappers,authentication, authorization,paging, validations, filters, middleware etc...most of my dot net friends also waiting for the same,

[@DotNetCoreCentral]

@RAM I’m planning to do it, though it will be a series of videos, as it needs some serious time commitments. I’ll start this week, thanks for the feedback. I’m sure a series like that will be useful to a lot of people.

[@nickfotopoulos5323]

Anything else...? 😅😂🤣

[@sovannseung6985]

@@DotNetCoreCentral Looking forward to watch these series of videos. Great video and top. Thank you.

[@DotNetCoreCentral]

@@sovannseung6985 thanks!

[@ashutoshmishra2170]

Yes please start . We are really interested.

[@rabbanishaik2363]

Goog one. thank you

[@DotNetCoreCentral]

@Rabbani Shaik
, thanks for watching!

[@ibknl1986]

Thank you. Nice video.

[@DotNetCoreCentral]

Thanks

[@jjnguy13]

This was very good. Thanks!

[@DotNetCoreCentral]

@Justin Nelson, thanks for watching the video!

[@surenrdashrestha2831]

Well explained. Thank you.

[@DotNetCoreCentral]

@Surenrda Shrestha thanks for watching!

[@gastonverelst975]

Nice explanation, thanks!

[@DotNetCoreCentral]

@Gaston Verelst, thanks for watching!

[@nareenderkumar]

What is the difference between UseWhen and MapWhen?

[@jonsnow4335]

very impresive!

[@DotNetCoreCentral]

@Jon Snow, thanks for watching!

[@jonsnow4335]

@@DotNetCoreCentral was middleware introduced in core 3.0?

[@DotNetCoreCentral]

@@jonsnow4335 its from day 1 of .NET Core as far as my knowledge goes.

[@temesegenabuhay9408]

thank u bro ... i have a question how to develop real time fire emergency response system Prototype using middleware???

[@DotNetCoreCentral]

@Temesegen Abuhay, thanks for watching! I am not sure I understood the question completely.

[@temesegenabuhay9408]

@@DotNetCoreCentral how to develop database for a real time fire emergency response system using middleware software

[@DotNetCoreCentral]

@@temesegenabuhay9408 I am not sure why you will develop a database through middleware for application. Middleware is usually used for things like authrntication/authorization/logging etc or some sort of custom filtering you want to do in request/response before it goes to your application.

[@PrinceKumar-mk8be]

not clear on usewhen and mapwhen

[@ashutoshmishra2170]

Now i can gave answers ask in interview on middleware .

[@DotNetCoreCentral]

@Ashutosh Mishra, thanks for watching!

[@ashutoshmishra2170]

Please start a course on dot net core .

[@DotNetCoreCentral]

@Ashutosh Mishra, thanks for the suggestion.

[@SajadJalilian]

Custom Middleware 12:34

[@DotNetCoreCentral]

@Sajad Jalilian, thanks for watching!