SaaS: “Test” connection string returns 415 Unsupported Media Type in WebAssembly mode #10934

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  maliming created 12 days ago

  Support Team Fullstack Developer

  Hi,

  In WebAssembly mode the request goes through your Blazor project, and that forwarding endpoint loses the connection string, so the HttpApi.Host returns 415.

  You can fix it in your Blazor project for now. Add this class:

  using System.Linq;
  using Microsoft.AspNetCore.Mvc;
  using Microsoft.AspNetCore.Mvc.ApplicationModels;
  using Microsoft.AspNetCore.Mvc.ModelBinding;
  using Microsoft.Extensions.Options;
  using Volo.Abp.AspNetCore.Mvc;
  using Volo.Abp.AspNetCore.Mvc.Conventions;
  using Volo.Abp.DependencyInjection;
  using Volo.Abp.Http.Client.ClientProxying;
  using Volo.Abp.Http.Client.StaticProxying;
  using Volo.Abp.Http.Client.Web.Conventions;
  using Volo.Abp.Http.ProxyScripting.Generators;
  
  [DisableConventionalRegistration]
  public class MyHttpClientProxyServiceConvention : AbpHttpClientProxyServiceConvention
  {
      public MyHttpClientProxyServiceConvention(
          IOptions<AbpAspNetCoreMvcOptions> options,
          IConventionalRouteBuilder conventionalRouteBuilder,
          IClientProxyApiDescriptionFinder clientProxyApiDescriptionFinder,
          IOptions<AbpHttpClientStaticProxyingOptions> staticProxyingOptions)
          : base(options, conventionalRouteBuilder, clientProxyApiDescriptionFinder, staticProxyingOptions)
      {
      }
  
      protected override void ConfigureParameters(ControllerModel controller)
      {
          if (AbpHttpClientProxyHelper.IsClientProxyService(controller.ControllerType))
          {
              foreach (var action in controller.Actions)
              {
                  var actionApiDescription = FindActionApiDescriptionModel(controller, action);
                  if (actionApiDescription == null)
                  {
                      continue;
                  }
  
                  foreach (var parameter in action.Parameters.Where(p => p.BindingInfo == null))
                  {
                      if (actionApiDescription.Parameters.Any(p =>
                              p.NameOnMethod == parameter.ParameterName &&
                              p.BindingSourceId == ParameterBindingSources.Body))
                      {
                          parameter.BindingInfo = BindingInfo.GetBindingInfo(new[] { new FromBodyAttribute() });
                      }
                  }
              }
          }
  
          base.ConfigureParameters(controller);
      }
  }
  

  Then register it in ConfigureServices of your ...BlazorModule:

  context.Services.Replace(ServiceDescriptor.Transient<IAbpServiceConvention, MyHttpClientProxyServiceConvention>());
  

  This needs using Microsoft.Extensions.DependencyInjection.Extensions; and using Volo.Abp.AspNetCore.Mvc.Conventions;.

  We'll fix this in the next patch version. Your ticket has been refunded.

  Thanks

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