HttpClient.SendAsync Method (HttpRequestMessage, HttpCompletionOption, CancellationToken)
Sends an HTTP request with an HTTP completion option and cancellation token as an asynchronous operation.
Namespace: System.Net.Http
Assembly: System.Net.Http (in System.Net.Http.dll)
Syntax
'Declaration
Public Function SendAsync ( _
request As HttpRequestMessage, _
completionOption As HttpCompletionOption, _
cancellationToken As CancellationToken _
) As Task(Of HttpResponseMessage)
'Usage
Dim instance As HttpClient
Dim request As HttpRequestMessage
Dim completionOption As HttpCompletionOption
Dim cancellationToken As CancellationToken
Dim returnValue As Task(Of HttpResponseMessage)
returnValue = instance.SendAsync(request, _
completionOption, cancellationToken)
public Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,
HttpCompletionOption completionOption,
CancellationToken cancellationToken
)
public:
Task<HttpResponseMessage^>^ SendAsync(
HttpRequestMessage^ request,
HttpCompletionOption completionOption,
CancellationToken cancellationToken
)
member SendAsync :
request:HttpRequestMessage *
completionOption:HttpCompletionOption *
cancellationToken:CancellationToken -> Task<HttpResponseMessage>
public function SendAsync(
request : HttpRequestMessage,
completionOption : HttpCompletionOption,
cancellationToken : CancellationToken
) : Task<HttpResponseMessage>
Parameters
- request
Type: System.Net.Http.HttpRequestMessage
The HTTP request message to send.
- completionOption
Type: System.Net.Http.HttpCompletionOption
An HTTP completion option value that indicates when the operation should be considered completed.
- cancellationToken
Type: System.Threading.CancellationToken
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
Return Value
Type: System.Threading.Tasks.Task<HttpResponseMessage>
The task object representing the asynchronous operation.
Remarks
This operation will not block. The returned task object will complete once the entire response including content is read.
For a complete example of using the HttpClient class, see Calling a Web API From a .NET Client