Send a Staged REST Request with a Streamed Body

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Demonstrates Rest.SendReqStreamBody, which sends a request whose body is read from a Stream, then reads the response in separate steps.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Dim success As Boolean = False

Dim rest As New Chilkat.Rest
Dim bTls As Boolean = True
Dim bAutoReconnect As Boolean = True
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


'  The file paths are relative to the application's current working directory.  Absolute paths
'  may also be used.  Supply the paths appropriate to your own environment.

'  The request body is read from a Stream whose source is a local file.
Dim bodyStream As New Chilkat.Stream
bodyStream.SourceFile = "qa_data/upload.json"

rest.AddHeader("Content-Type","application/json")

'  Send the request, reading the body from the stream.  The 3rd argument is the Stream.
success = rest.SendReqStreamBody("POST","/api/upload",bodyStream)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


'  After sending, read the response status line and header fields.  The return value is the HTTP
'  status code, or -1 if no response was received.
Dim statusCode As Integer = rest.ReadResponseHeader()
If (statusCode < 0) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Debug.WriteLine("Response status code: " & statusCode)

'  Read the response body as text.
Dim responseBody As String = rest.ReadRespBodyString()
If (rest.LastMethodSuccess = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(responseBody)