Polly on Blazor

Describe the bug

Using a Polly Policy in blazor on httpclient does not execute policy on a transient failure.

To Reproduce

Steps to reproduce the behavior: Using the code below:

using System;
using System.Collections.Generic;
using System.Net.Http;
using Microsoft.AspNetCore.Components.Builder;
using Microsoft.Extensions.DependencyInjection;
using Polly;

namespace Web.Client
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
             // custom wasm request handler to add a bearer token to each internally matching request
             services.AddSingleton(x => new HttpClient(new TokenWebAssemblyMessageHandler(x.GetService<ITokenService>())));

            // add polly wait and retry policy
            services.AddHttpClient<IMicroServiceClient, SomeMicroserviceClient>()
                .AddTransientHttpErrorPolicy(builder => builder.WaitAndRetryAsync(new[]
                {
                    TimeSpan.FromMilliseconds(300),
                    TimeSpan.FromMilliseconds(600),
                    TimeSpan.FromMilliseconds(900),
                    TimeSpan.FromMilliseconds(1200)
                }));

            services.AddSingleton<AppState>();
        }

        public void Configure(IComponentsApplicationBuilder app)
        {
            app.AddComponent<App>("app");
        }
    }
}

Expected behavior

When the httpclient makes a failed call, i.e. response in the 5xx and 4xx ranges, should retry the request per the orders of policy.

[mkArtakMSFT]

Thanks @pdeveau. We’re wrapping up upcoming releases now and will be able to get to this only after that.

[mkArtakMSFT]

Hi. Thanks for contacting us. We’re closing this issue as there was not much community interest in this ask for quite a while now. You can learn more about our triage process and how we handle issues by reading our Triage Process writeup.