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

See Also

Reference

HttpClient Class

SendAsync Overload

System.Net.Http Namespace