/// <summary>
/// This is a custom method to register the HttpClient and typed factory. Needed because we need to access the config name when creating the typed client
/// </summary>
private static IHttpClientBuilder AddGrpcHttpClient <TClient>(this IServiceCollection services, string name)
where TClient : class
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
services
.AddHttpClient(name)
.ConfigurePrimaryHttpMessageHandler(() =>
{
// Set PrimaryHandler to null so we can track whether the user
// set a value or not. If they didn't set their own handler then
// one will be created by PostConfigure.
return(null);
});
services.PostConfigure <HttpClientFactoryOptions>(name, options =>
{
options.HttpMessageHandlerBuilderActions.Add(static builder =>
{
if (builder.PrimaryHandler == null)
{
// This will throw in .NET Standard 2.0 with a prompt that a user must set a handler.
// Because it throws it should only be called in PostConfigure if no handler has been set.
var handler = HttpHandlerFactory.CreatePrimaryHandler();
#if NET5_0
handler = HttpHandlerFactory.EnsureTelemetryHandler(handler);
#endif
builder.PrimaryHandler = handler;
}
});
});
/// <summary>
/// This is a custom method to register the HttpClient and typed factory. Needed because we need to access the config name when creating the typed client
/// </summary>
private static IHttpClientBuilder AddGrpcHttpClient <TClient>(this IServiceCollection services, string name)
where TClient : class
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
services
.AddHttpClient(name)
.ConfigurePrimaryHttpMessageHandler(() =>
{
var handler = HttpHandlerFactory.CreatePrimaryHandler();
#if NET5_0
handler = HttpHandlerFactory.EnsureTelemetryHandler(handler);
#endif
return(handler);
});
var builder = new DefaultHttpClientBuilder(services, name);
builder.Services.AddTransient <TClient>(s =>
{
var clientFactory = s.GetRequiredService <GrpcClientFactory>();
return(clientFactory.CreateClient <TClient>(builder.Name));
});
ReserveClient(builder, typeof(TClient), name);
return(builder);
}
private static HttpMessageInvoker CreateInternalHttpInvoker(HttpMessageHandler?handler)
{
// HttpMessageInvoker should always dispose handler if Disposed is called on it.
// Decision to dispose invoker is controlled by _shouldDisposeHttpClient.
if (handler == null)
{
handler = HttpHandlerFactory.CreatePrimaryHandler();
}
#if NET5_0
handler = HttpHandlerFactory.EnsureTelemetryHandler(handler);
#endif
// Use HttpMessageInvoker instead of HttpClient because it is faster
// and we don't need client's features.
var httpInvoker = new HttpMessageInvoker(handler, disposeHandler: true);
return(httpInvoker);
}
