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Read the REST Response Header and Status Code

Demonstrates Rest.ReadResponseHeader, which reads the HTTP response status line and header fields after a staged send. The returned integer is the HTTP status code, or -1 if no response was received.

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

$bSuccess = $oRest.SendReqNoBody("GET","/api/items/123")
If ($bSuccess = False) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  Read the HTTP response status line and header fields.  The returned integer is the HTTP status
;  code (such as 200, 404, or 500), 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)