The blazor project(.net standard 2.1)
Microsoft.AspNetCore.Components.WebAssembly 3.2.1
Microsoft.AspNetCore.Components.WebAssembly.Build 3.2.1
Microsoft.AspNetCore.Components.WebAssembly.DevServer 3.2.1
Microsoft.AspNetCore.Http.Connections.Client 3.1.6
Microsoft.AspNetCore.SignalR.Client 3.1.6
Microsoft.AspNetCore.SignalR.Protocols.NewtonsoftJson 3.1.6
System.Net.Http.Json 3.2.1
@code{
private HubConnection HC;
protected override async Task OnInitializedAsync(){
HC = new HubConnectionBuilder().WithUrl("http://localhost:4000/class").Build();
HC.On<string>("TextMessage", Message => Console.WriteLine(Message));
await HC.StartAsync();
await base.OnInitializedAsync();
}
}
Log in chrome console:
asp.net core Server:(.net core 3.1)
public class Startup {
public Startup(IConfiguration configuration) {
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services){
services.AddSingleton<ClassHub>();
services.AddSignalR(o => {
o.MaximumReceiveMessageSize = null;
o.EnableDetailedErrors = true;
});
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env){
app.UseEndpoints(endpoints => {
endpoints.MapHub<ClassHub>("/class", options => {
options.TransportMaxBufferSize = 256000;
options.ApplicationMaxBufferSize = 256000;
});
});
}
}
I had the same error. I was using Blazor WebAssembly and an ASP Api Rest for the chat hub. When I runned Blazor app this crashed. I struggled alote and was googling.
However I fixed it just installing a Nuget. Make sure Microsoft.AspNetCore.Http.Connections.Client
Nuget is installed. Just Installed as a Nuget and that's it.
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