🚀 Join the .NET Web Academy with a 30% discount - closing soon! 👉 www.dotnetwebacademy.com/courses/academy?coupon=dnwas23yt

there iis something so special about your videos, i am a .Net developer and i will cherish your videos anytime anyday

13:32 in that case you can simply add .Reverse() and you won't need to write another line

Btw, we can also use this line to map the heroes collection: *return _mapper.Map(heroes);* 🤩

This is the first time I've learnt about AutoMapper and it seems so powerful and useful! This will make it so much easier to convert one class data to another. You are a lifesaver and a gold resource of knowledge. Cheers🎉🎉🎉

i also use mapper in this mode: CreateMap().ReverseMap();

I believe you should also know that auto mapper is easy to be abused and start doing things you probably shouldn’t. That being said, I’m a huge fan of it and use it a lot at production environments!. One big caveat is that auto mapper doesn’t support asynchronous operations, so if you want to do resolve some things asynchronously it won’t help you there. There are things you could do to make that work but beware it’s not intended for that. Another thing also worth mentioning is that auto mapper is slow, I believe it uses reflection, but hasn’t been a problem for me anyways. One more thing, your object will require a parameterless constructor to support automapper. Would be interesting to see a video about alternative approaches to Automapper that make your life as easy as it does

30 degree is freaking hot!!! You should come to Egypt and try the 42 degree

Amazing tutorial, thank you. Oh and nice shirt!!! I love how it looks sandy for a beach shirt.

Thanks for the detailed explaination, I did some google search about automapper for my project but your video made it so clear for me ❤❤

Hey Patrick, love your videos. As a South African, I always laugh at Europeans who call early 30 degrees hot😂 try 40+ celcius, then you can talk😂 I had the privilage of visiting your amazing country this year and I highly reccomend it to any traveler. Thank you for all your great content. Ive learned a lot from you, as have so many others.

Thank you, Patrick! This is right the information that I wanted.

Patrick God -> 0, VS2022 - 5, The Battle xD, Overall awesome introduction to Automapper.

Great topic I am a big fan of you, small note I want to add you dont need to convert to Dto one by one using linq, Automapper support collection

Thanks a lot! Take a vacation in Sweden, it's cooler. 😀

Thanks! Patrick. As always, love your topics and presentation

Thanks, Patrick Always learning great thing from you

Love you so much dude. Keep up the good work

Brilliant video. Thanks a lot.

Thanks!

Thank you.❤

Hi Patrick. Great video. I was wondering if you've ever used Mapster? What are your thoughts if you have and maybe that could be a video for the future?

how to install this package in class library project ??

hahaha "Visual Studio, Jesus Christ... what is going on here?" well said 🤣🤣🤣

What about if the two types are in different assemblies? Isn't that a more realistic usecase?

Nice.

where i live it is 40 C degrees in summer in a usual day

If you use mongodb, you don't need to use an automapper to return. The mongodb driver already have a translator, the extension "As", and you can use the extension "Lookup" to manipulate fields.

Hi Patrick, thanks for the video. My question may sound stupid... Anyway, I would like to know when was the AutoMapperProfile class being call? When was the createMap statement being executed? Appreciate if you could make my mind clear. Last but not least, could please make a video for authentication webAPI.? Thank you very much.

9:17 could you explain why you are using the linq statement? what is the benefit? you could just return _mapper.Map(heroes)

Hi Patrick, we would like to see tutorial video on .Net 6 Azure :)

!completed

Hi Patrick, can there be a reason to use separate DTO's for [1] transferring data from client to server and [2] transferring data from server to client. For all of our models (250+) we have 2 DTO's; so for e.g. model Employee we have EmployeeReadDto and EmployeeEditDto. This also means that we have a lot of mapping configurations; Employee -> EmployeeReadDto, Employee -> EmployeeEditDto and EmployeeReadDto -> EmployeeEditDto. Most of the time the difference between the 2 DTO's is only the Id property (xxxReadDto has an Id and the xxxEditDto has not). Having the distinction brings a lot of extra code and configuration. Is it really necessary to have this distinction or can everything be done with 1 dto, e.g. EmployeeDto?

ty

Brilliant!

Thanks dude , works perfect

Great! Thanks

Automapper = instant technical dept

Hi Patrick. Can you explain how it just works after creating the AutoMapperProfile class? Perhaps I missed it but I didn’t see you initialise or inherit that code anywhere. What am I missing?

Thanks for the video. This is like many I have seen, and all use API with EF. What I like to see is full EF without API, using Class calls to Add,Update,Deleted DTO changes in EF. I have all working, but when I try and do a Update by passing a DTO back in to EF to do a update, I get errors. I will keep looking, but I hope to find a full video solution that show how to use EF with DTO and AutoMapper without using APIs.

Thanks Patrick, You are a God

Thank Patrick for this topic, what if we dont want to map some properties of dto ?

30 degress *freaking hot* 🙂🙂. Europeans don't really use air conditioners, do they? Also really nice video. I previously did a Udemy course which explained everything perfectly but didn't mention *WHY* Mapping profiles were used. So you showed us that here, it's basically like a policy/rule that allows the mapping right? but the real mapping happens with the *_mapper.Map()* method. Thanks a lot for the video.

In profile u can add .ReverseMap(); so u dont copy code

How to handle related data with automapper and DTO:s? Like if there is a table for super powers that every hero may have one or many. How to get a list of super heros including their super powers when using automapper and DTO:s?

13:40 - Instead of two lines, just use .ReverseMap()

Patrick, could you record a video about DDD (Domain Driven Design)?

Hello Patric Hope you doing well, As per your thinking Auto Mapper Map Performance it's slow or not ?

Why not writting a simple explicit typecasting opperator from SuperHero to SuperHeroDto and just do "return Ok(heroes.Select(x => x as SuperHeroDto));" ?

I really like your content so thanks but why would I use this when it can obfuscate the names of properties when transposing them between objects when I can just use Newtonsoft or MS code generators and convert them using JSON property mapping ?

Is it case sensitive. Will it have a problem mapping from Id to id?

Hello @PatrickGod, First of all, I wanted to say that your video was excellent, just like all the others. I was wondering if you could explain to us how to use AutoMapper for entity editing. In the system I'm developing, we use a DTO to add a new entity (for example, SuperHeroDto), and in the Service layer, it is transformed into a "regular" entity (SuperHero). This works well. However, I have some doubts when it comes to editing an existing record. The issue arises because, during the post request, it uses the mapping configuration from when the object was created. As a result, some things that should be preserved are changed (e.g., Id, Creation Date). It might be something simple, and I might be overcomplicating things, but if you could help me understand how AutoMapper works for both adding and editing entities, it would be immensely helpful in advancing my projects at the company where I work. Currently, the mapping between DTO and the "regular" class is done manually. Thank you very much and best regards.

Visual Studio clearly doesnt like the heat either

Is there a place to map also mapping between models and DB entities, in order to hide DB related stuff (special properties for Mongo or EF core)?

Hey Pattrick, im writing a project and i have a class library that has all the repositories and i want to map from the repository itself and then return the value, how i can do it?

Can I create an universal AutoMapperProfile? Like if I got 50 models, do I have to create 50 AutoMapperProfiles?

Great video, if I have multiple entries other then the superhero, I will need to create multiple profiles or I can create it all in the same profile?

Hey Pattrick, the automappers faills only when i try to get the object by id its same error as in the vid its strange becase the getall method work and its same mapping do you know why this pronlem occurs?

I wanna ask if you using Automapper so how you use Entity Framework ? Which differents is between Automapper vs Entity Framework. And if I wanna use Automapper and Entity Framework in one project. So Which one is good use it? Thanks for answer

Tried to AutoMapper.Extensions.Microsoft.Dependen and got error Severity Code Description Project File Line Suppression State Error Package restore failed. Rolling back package changes for 'AutoMapper'.

Hi Patrick, can you please demo a [HttpGet] method for updating existing model with Automapper.

when i trying to install its throwing error cycle detected

.ReverseMap()

i m just watching everyone automapper tutorial everyone just showing how to use automaper to fetch data only one table i don't find any solution.. when it comes to the join table .. How to use join with automapper.. can you make video about this.

Hello sir can u do a .net crud programme with clean Architecture

Sometimes I wonder if all these overhead bulky tools for making SQL queries are even worth it when the raw SQL queries are x10 faster and configurable on the fly.

We want toturial about identity server 4 and than you

33 is nothing in South Africa 🇿🇦🇿🇦we currently on 120degreess

You have any T-shirt I can buy

superheroes? how old are you, 5?

It seems like a lot of work ....

Please stop using Automapper, it looks good at the beginning but it cost us so much more time and nerves in the long run. It's totally not worth it! If I wanted to not have references in my mapping code, I would have used plain JavaScript. 👎

spider man's place should me Brooklyn

You'd better think twice before start using automapper for anything serious. Authors of this library will always say that it is your fault, your problem and you are using it wrong and you will be left alone with this tool and your problems. They also like to do breaking changes without any option for fallback. No library should dictate you what to do in your own code.