Awesone~~ EP07~EP09 is really good for me. Thanks!! I can understand the typical calling http procedures in client with MVVM pattern, dependency injection, Interface and httpclientfactory.
Thanks for watching HongKyu. Yes there's is an easy to call APIs and then there's correct way to call APIs. I tried my best to explain that. You can learn more about them here. docs.microsoft.com/en-us/dotnet/architecture/microservices/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests
Loved the way you explained things, not just for Blazor but also for the OOPs concepts, along with demonstrations. It's really helpful for a beginner like me. 😊
When you do builder.Services.AddHtppClient(...) you mention "typed Client" and "IHttpClientFactory". What do you mean be "typed client"? Isn't just a regular HttpClient hc created for DI? How does it relate to the type parameter of Implementation? Is hc only available for that implementation class? And what role has IHttpClientFactory here? If only an HttpClient is provided, where is the factory class? After all in constructor injection we get an HttpClient and not an IHttpClientFactory. Thank you for your great videos!
I just found that, which answers my question: stackoverflow.com/questions/56390914/when-using-services-addhttpclient-where-is-the-httpclient-created Thanks for reading, though :-)
It's fun reading all these comments. And I am glad you found the answer. Microsoft docs are very helpful. I understood the whole thing pretty quickly and how cool it is. docs.microsoft.com/en-us/dotnet/architecture/microservices/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests
So the constructor with injected fields is still going to be relevant even if the object instance was created using the parameterless constructor, like you did with the implicit operator? How does that work?
That's a really good question. I will have to personally try that scenario but again the idea behind using implicit operator is to convert model to viewmodel and viewmodel to model. Not to use injected httpClients. I hope that makes sense. Really good question though.
Nice tutorial for MVVM, I already use it but I have this problem with routing, how can I use/route to another page using MVVM? Thank you for answer! Have a great day!
Dear Fahad, How are you, I hope you are doing well and you and your family in a good health. We missed you so much, so could you please kindly continue this series if you do not mind. Thank you so much.
Thank you so much for your kind words Tarik. I and my family is doing well. I hope you are doing well too. I know I haven't been uploading videos. There are lot of things going on right now. I and my wife recently moved to a different place and been making videos for telerik too.
Hi, How we manage this view model if my API is returning list object? You have created one method LoadObject to fill all data in "this". How can we use list here?
Hi Fahad. I am working on a Shopping Cart application and I am using the MVVM architecture. I am using the Blazored nuget (LocalStorage) package to persist the cart item. I am getting an exception "Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] Unhandled exception rendering component: Deserialization of interface types is not supported. Type 'ShoppingCartBlazorWasmMVVM.Client.ViewModels.IProductViewModel'". How do I handle this? Thanks Fahad. Other than this the application works fine.
Is this ASP.NET Core hosted Blazor WebAssembly app? Make sure that you are running server as start up project. Please check this issue on GitHub - github.com/dotnet/aspnetcore/issues/22364
Thank you so much for this tutorial! When I replace builder.Services.AddSingleton(); with builder.Services.AddHttpClient ("BlazingChatClient", client => client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress)); it does not work anymore. When I start the Application I get an Error in the Browser. Do you have any idea, what the problem could be?
Check it out - www.blazingchat.com/
Source Code - github.com/CuriousDrive/BlazingChat
Like, Comment and Subscribe!!!
Awesone~~ EP07~EP09 is really good for me. Thanks!! I can understand the typical calling http procedures in client with MVVM pattern, dependency injection, Interface and httpclientfactory.
Thanks for watching HongKyu. Yes there's is an easy to call APIs and then there's correct way to call APIs. I tried my best to explain that. You can learn more about them here.
docs.microsoft.com/en-us/dotnet/architecture/microservices/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests
Loved the way you explained things, not just for Blazor but also for the OOPs concepts, along with demonstrations. It's really helpful for a beginner like me. 😊
Very good explanation of using HttpClient in WebAssembly. Most other videos illustrate using Blazor Server
Thanks for watching Lyndon.
Awesome! You're the man!
Thanks for watching Nemanja. Please share with your friends :)
When you do builder.Services.AddHtppClient(...) you mention "typed Client" and "IHttpClientFactory". What do you mean be "typed client"? Isn't just a regular HttpClient hc created for DI? How does it relate to the type parameter of Implementation? Is hc only available for that implementation class? And what role has IHttpClientFactory here? If only an HttpClient is provided, where is the factory class? After all in constructor injection we get an HttpClient and not an IHttpClientFactory. Thank you for your great videos!
I just found that, which answers my question: stackoverflow.com/questions/56390914/when-using-services-addhttpclient-where-is-the-httpclient-created
Thanks for reading, though :-)
It's fun reading all these comments. And I am glad you found the answer. Microsoft docs are very helpful. I understood the whole thing pretty quickly and how cool it is. docs.microsoft.com/en-us/dotnet/architecture/microservices/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests
So the constructor with injected fields is still going to be relevant even if the object instance was created using the parameterless constructor, like you did with the implicit operator? How does that work?
That's a really good question. I will have to personally try that scenario but again the idea behind using implicit operator is to convert model to viewmodel and viewmodel to model. Not to use injected httpClients. I hope that makes sense. Really good question though.
Nice tutorial for MVVM, I already use it but I have this problem with routing, how can I use/route to another page using MVVM? Thank you for answer! Have a great day!
Hello Rico, thanks!!! Can you please elaborate the question? Not sure why you want to combine MVVM with routing.
So Good
Thank you very much.
Thanks for your feedback for the last video, Tarik. I slowed it down little bit in this demo.
could you teach us how to use repository pattern with HTTP client factory
Dear Fahad,
How are you, I hope you are doing well and you and your family in a good health.
We missed you so much, so could you please kindly continue this series if you do not mind.
Thank you so much.
Thank you so much for your kind words Tarik. I and my family is doing well. I hope you are doing well too.
I know I haven't been uploading videos. There are lot of things going on right now. I and my wife recently moved to a different place and been making videos for telerik too.
I wish you all the best, and a good luck.
Hi, How we manage this view model if my API is returning list object? You have created one method LoadObject to fill all data in "this". How can we use list here?
Hey Arun, I would create a list property in your view-model and use foreach loop in LoadObjects to load that list.
I hope it helps.
Can we use Auto Mapper here?
Thank you.
You are welcome. Please it with your friends.
Hi Fahad. I am working on a Shopping Cart application and I am using the MVVM architecture. I am using the Blazored nuget (LocalStorage) package to persist the cart item. I am getting an exception "Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
Unhandled exception rendering component: Deserialization of interface types is not supported. Type 'ShoppingCartBlazorWasmMVVM.Client.ViewModels.IProductViewModel'". How do I handle this? Thanks Fahad. Other than this the application works fine.
Is this ASP.NET Core hosted Blazor WebAssembly app? Make sure that you are running server as start up project. Please check this issue on GitHub - github.com/dotnet/aspnetcore/issues/22364
@@CuriousDrive Yes it is Blazor WebAssembly and the Server project is the start up project.
Hi Fahad hope all is well? It's been 2 weeks.
Hello Peter, thanks for checking in. I have been making videos for telerik lately. I will be get back in making videos here soon .
Thank you so much for this tutorial!
When I replace builder.Services.AddSingleton(); with builder.Services.AddHttpClient
("BlazingChatClient", client => client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress)); it does not work anymore. When I start the Application I get an Error in the Browser. Do you have any idea, what the problem could be?
Hello Marius, sorry to hear that.
Can you please share your error message here. Maybe I will be able to help you out.
Try this:
cd Client
dotnet add package Microsoft.Extensions.Http
dotnet add package Microsoft.Extensions.Http.Polly
cd Server
dotnet run
I had the same problem, this fixed it for me:
dotnet add package Microsoft.Extensions.Http --version 8.0.0