AutoIt

HTTP POST and Stream Response to File

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Demonstrates how to send an HTTP POST and stream the response body directly to a file. AutoIt

Local $bSuccess = False

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

$oRest = ObjCreate("Chilkat.Rest")

$oUrl = ObjCreate("Chilkat.Url")
; This URL will emit a response that echos the query params (name and age)
$oUrl.ParseUrl("https://www.chilkatsoft.com/readPost.asp")

; Connect to the web server
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect($oUrl.Host,$oUrl.Port,$oUrl.Ssl,$bAutoReconnect)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

$oRest.AddQueryParam("name","John")
$oRest.AddQueryParam("age","33")

;  Send the HTTP POST.
$bSuccess = $oRest.SendReqFormUrlEncoded("POST",$oUrl.Path)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

; Read the response header.
Local $iResponseStatusCode = $oRest.ReadResponseHeader()
If ($iResponseStatusCode < 0) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Response status code = " & $iResponseStatusCode & @CRLF)

; We expect a 200 response status if the file data is coming.
; Otherwise, we'll get a string response body with an error message(or no response body).
If ($iResponseStatusCode = 200) Then

    $oBodyStream = ObjCreate("Chilkat.Stream")

    ; The stream's sink will be a file.
    $oBodyStream.SinkFile = "qa_output/out.txt"

    ; Read the response body to the stream.  Given that we've
    ; set the stream's sink to a file, it will stream directly
    ; to the file.
    $bSuccess = $oRest.ReadRespBodyStream($oBodyStream,True)
    If ($bSuccess <> True) Then
        ConsoleWrite($oRest.LastErrorText & @CRLF)
        Exit
    EndIf

    ConsoleWrite("Successfully streamed the response to a file." & @CRLF)

Else
Local $sErrResponse = $oRest.ReadRespBodyString()
    If ($oRest.LastMethodSuccess <> True) Then
        ConsoleWrite($oRest.LastErrorText & @CRLF)
    Else
        ConsoleWrite($sErrResponse & @CRLF)
    EndIf

EndIf