dotnet-httpclient

来源： https://stackoverflow.com/questions/29224734/how-to-read-cookies-from-httpresponsemessage

问题 Is there a way to add a handler to all clients created by the IHttpClientFactory? I know you can do the following on named clients: services.AddHttpClient("named", c => { c.BaseAddress = new Uri("TODO"); c.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); c.DefaultRequestHeaders.CacheControl = new CacheControlHeaderValue { NoCache = true, NoStore = true, MaxAge = new TimeSpan(0), MustRevalidate = true }; }).ConfigurePrimaryHttpMessageHandler(() => new

问题 Is there a way to add a handler to all clients created by the IHttpClientFactory? I know you can do the following on named clients: services.AddHttpClient("named", c => { c.BaseAddress = new Uri("TODO"); c.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); c.DefaultRequestHeaders.CacheControl = new CacheControlHeaderValue { NoCache = true, NoStore = true, MaxAge = new TimeSpan(0), MustRevalidate = true }; }).ConfigurePrimaryHttpMessageHandler(() => new

问题 Everywhere I can see three main approaches to create clients (basic, named, typed) in DI, but I have found nowhere if to inject IHttpClientFactory or HttpClient (both possible). Q1 : What is the difference between injecting IHttpClientFactory or HttpClient please? Q2 : And if IHttpClientFactory is injected, should I use factory.CreateClient() for each call? 回答1: Summary HttpClient can only be injected inside Typed clients for other usages, you need IHttpClientFactory In both scenarios, the

问题 Everywhere I can see three main approaches to create clients (basic, named, typed) in DI, but I have found nowhere if to inject IHttpClientFactory or HttpClient (both possible). Q1 : What is the difference between injecting IHttpClientFactory or HttpClient please? Q2 : And if IHttpClientFactory is injected, should I use factory.CreateClient() for each call? 回答1: Summary HttpClient can only be injected inside Typed clients for other usages, you need IHttpClientFactory In both scenarios, the

问题 I've created a custom library which automatically sets up Polly policies for specific services which depend on HttpClient . This is done using the IServiceCollection extension methods and the typed client approach. A simplified example: public static IHttpClientBuilder SetUpFooServiceHttpClient(this IServiceCollection services) { return services .AddHttpClient<FooService>() .AddPolicyHandler(GetRetryPolicy()); } The example service: public class FooService { private readonly HttpClient

问题 I am calling a webapi from a blazor 3.2.0 client: protected override async Task OnParametersSetAsync() { if (SelectedComplexId != Guid.Empty) { residents = await HttpClient.GetFromJsonAsync<List<ResidentDTO>>($"api/complex/residents/{SelectedComplexId.ToString()}"); } } An exception is being thrown because the GetFromJsonAsync expects a content-type header of application/json in response. This is the api action method: [HttpGet("/residents/{complexId}")] public async Task<IActionResult>

问题 This question already has an answer here : adding a handler to all clients created via IHttpClientFactory? (1 answer) Closed 4 days ago . Is there a way to add handlers to the default HTTP client in ASP.NET Core? Something like this? .AddHttpClient() .AddHttpMessageHandler<Handler1>() .AddHttpMessageHandler<Handler2>(); 回答1: Documentation states that you can only add handlers or configure the inner most handler to named or typed clients. Reference Configure the HttpMessageHandler It may be

问题 I'm trying to implement a rest client in c# .net core that needs to first do Basic Authentication, then leverage a Bearer token in subsequent requests. When I try to do Basic Authentication in combination with client.PostAsync with a FormUrlEncodedContent object, I'm getting an exception: System.InvalidOperationException occurred in System.Net.Http.dll: 'Misused header name. Make sure request headers are used with HttpRequestMessage, response headers with HttpResponseMessage, and content

问题 I'm trying to implement a rest client in c# .net core that needs to first do Basic Authentication, then leverage a Bearer token in subsequent requests. When I try to do Basic Authentication in combination with client.PostAsync with a FormUrlEncodedContent object, I'm getting an exception: System.InvalidOperationException occurred in System.Net.Http.dll: 'Misused header name. Make sure request headers are used with HttpRequestMessage, response headers with HttpResponseMessage, and content