HttpClient.SendAsync Method (HttpRequestMessage)
.NET Framework (current version)
Send an HTTP request as an asynchronous operation.
Assembly: System.Net.Http (in System.Net.Http.dll)
Parameters
- request
-
Type:
System.Net.Http.HttpRequestMessage
The HTTP request message to send.
Return Value
Type: System.Threading.Tasks.Task<HttpResponseMessage>The task object representing the asynchronous operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | The request was null. |
| InvalidOperationException | The request message was already sent by the HttpClient instance. |
| HttpRequestException | The request failed due to an underlying issue such as network connectivity, DNS failure, server certificate validation or timeout. |
This operation will not block. The returned Task<TResult> object will complete once the entire response including content is read.
Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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