Why to use DTO (Data Transfer Objects)

At present we are Exposing database entities to the client, but that is not always a good idea. Sometimes you want to change the shape of the data that you send to client. For example, you might want to:
- Remove circular references (see previous section).
- Hide particular properties that clients are not supposed to view.
- Omit some properties in order to reduce payload size.
- Flatten object graphs that contain nested objects, to make them more convenient for clients.
- Avoid "over-posting" vulnerabilities. (See Model Validation for a discussion of over-posting.)
- Decouple your service layer from your database layer.
DTO will help us to resolve all the above issues. In this video we will understand it in details. .
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Thanks
Studymash

[@FisayoOluwayemi]

please when is this course going to end ? like when are you going to deploy the back end code to Azure?

[@StudyMash]

I think 5 more videos to go before releasing this on azure.

[@iancarr3923]

This is an excellent video - the best I have seen on DTO's so far. Video is also excellent.

[@dalilapramenkovic8597]

I just wanted to THANK YOU for this series of tutorials. You have helped me sooo much! You have such a good way of explaining things at easy way.
I really appreciate this course and I really appreciate you have posted this for free at YT.

[@harisharis-jw8ff]

i have not seen a teacher like u thank u

[@StudyMash]

Thanks buddy

[@josbexerra8115]

Muy bien explicado mister Mash....gracias

[@sajad5644]

i found great tutorials in your channel , tanx sir

[@harisharis-jw8ff]

thanks a lot you are the best teacher

[@noobtube5555]

Keep up the good work

[@ReyAlexam]

great and detailed explanation , thnx

[@odoolabs1366]

Best portion of WebAPI with repository pattern and Unit of work implementation , I feel you should extract the WebAPI portion of this tutorial and combine it in a single video and upload it , so that if some one search web api with repo pattern and unit of work he can find easily your tutorial .

[@aviadlampert5956]

Thank you for this video, made things more clear for me. I still have a question, where should the controller objects be instantiated? In a class as a field? in other places?

[@abdchuhan]

what is the difference between DTO and ViewModel

[@tunaalkan5407]

Hi Sandeep, thanks for the video. Can we copy data annotations (such as [Key] and [Column()] ) of the City model when moving some of its properties to the CityDto? Should CityDto have these annotations? Thanks.

[@StudyMash]

Yes, that is absolutely okay to add data annotation on DTO.

[@tunaalkan5407]

@@StudyMash Thank you!

[@raman.thatikunta]

Hey Sandeep, I'm now able to debug WebAPI project. I tried to attach to "Launch Chrome against localhost", but that didn't work. What steps do I need to take to debug front end app? Thanks.

[@StudyMash]

Why you are attaching it to Chrome, you need to attach the .exe of your application executing your application as suggested in this video.

[@lcantillo84]

Do you have any github repo with this project?

[@StudyMash]

github.com/webtrainer-in/HSPA