Using this with clientside blazor

[americanslon]

Do you know how this can be setup in the client side blazor to deserialized based on the descriminator.

The serialization on the net.core web api side works great, _t gets added but the blazor side is not aware of _t and doesn't deserialize into derived types.

[mcatanzariti]

@americanslon Are you referring to this technologie?
https://dotnet.microsoft.com/apps/aspnet/web-apps/blazor

Could you provide the client sample code that fails, please?

[americanslon]

Yep that's the one.
Nothing fails, I don't even understand how to bootstrap/initialize it with blazor.
Judging by your question you probably don't know either. It might be something worthwhile to look at to make sure this library works with it

[mcatanzariti]

Please let me help you by providing a code sample!

[americanslon]

There is nothing to provide....I don't understand how to set this up.
For example there are not controllers in blazor so there is no JsonSerializerOptions that I can find too attach Dahomey.Json to. Nothing to call SetupExtensions on.

[mcatanzariti]

What I am expecting is the code where you call GetJsonAsync or something similar to be sure I'm looking at the right API

Anyway, by digging into this technology, I noticed that there is no way to provide a JsonSerializerOptions instance to their HttpClient extension.

You need to call Dahomey.Json extension method SetupExtension on JsonSerializerOptions in order to let polymorphism work.

the issue corresponding to this problem is here:
dotnet/aspnetcore#19368

and the task to implement a better HttpClientExtensions is
dotnet/runtime#32937

However, you could implement it yourself, starting from
https://github.com/dotnet/aspnetcore/blob/master/src/Components/Blazor/Http/src/HttpClientJsonExtensions.cs

for instance

public static async Task<T> GetJsonAsync<T>(this HttpClient httpClient, string requestUri)
{
    var stringContent = await httpClient.GetStringAsync(requestUri);
    return JsonSerializer.Deserialize<T>(stringContent, JsonSerializerOptionsProvider.Options);
}

would be modified into

public static async Task<T> GetJsonAsync<T>(this HttpClient httpClient, string requestUri, JsonSerializerOptions options)
{
    var stringContent = await httpClient.GetStringAsync(requestUri);
    return JsonSerializer.Deserialize<T>(stringContent, options);
}

Hope it helps