(VB.NET UWP/WinRT) HTTP POST JSON (application/json)

Demonstrates how to send a JSON POST using the application/json content-type.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim req As New Chilkat.HttpRequest
Dim http As New Chilkat.Http

' If any custom headers need to be included with the POST, add them
' by calling SetRequestHeader

' Note: An application should never explicitly set the Content-Length header.
' The Content-Length is automatically computed and added by Chilkat.

' Here are some examples of custom headers.  

' Perhaps your particular app needs some sort of custom-computed Authorization header...
http.SetRequestHeader("Authorization","my-custom-computed-auth-value")

' Another custom header for some hypothetical app:
http.SetRequestHeader("X-Pass-Timestamp","my-custom-computed-timestamp-value")

' We don't need to set the Content-Type header, becaue it is automatically set by Chilkat
' in the PostJson2 call below.

' The following "Accept" header may be set, but it really isn't necessary:
http.SetRequestHeader("Accept","application/json")


Dim jsonText As String = "{ some JSON text ... }"

' To use SSL/TLS, simply use "https://" in the URL.

Dim resp As Chilkat.HttpResponse
resp = Await http.PostJson2Async("http://www.someserver.com/someJsonEndpoint","application/json",jsonText)
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
Else
    ' Display the JSON response.
    Debug.WriteLine(resp.BodyStr)

End If