AutoIt

Send a Staged Multipart REST Request

Demonstrates Rest.SendReqMultipart, which sends a multipart request using the parts configured on the object, then reads the response in separate steps.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

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Local $bSuccess = False

$oRest = ObjCreate("Chilkat.Rest")
Local $bTls = True
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect("example.com",443,$bTls,$bAutoReconnect)
If ($bSuccess = False) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  Configure one multipart part before sending.
$oRest.PartSelector = "1"
$oRest.AddHeader("Content-Type","text/plain")
$oRest.AddHeader("Content-Disposition","form-data; name=""field1""")
$bSuccess = $oRest.SetMultipartBodyString("value1")
If ($bSuccess = False) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  Send the multipart request using the configured parts.
$bSuccess = $oRest.SendReqMultipart("POST","/api/upload")
If ($bSuccess = False) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  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.
Local $iStatusCode = $oRest.ReadResponseHeader()
If ($iStatusCode < 0) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Response status code: " & $iStatusCode & @CRLF)

;  Read the response body as text.
Local $sResponseBody = $oRest.ReadRespBodyString()
If ($oRest.LastMethodSuccess = False) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($sResponseBody & @CRLF)