AutoIt

PayPal - Generate Invoice Number

See more PayPal Examples

Generates the next invoice number that is available to the user.

Note: This example requires Chilkat v9.5.0.65 or greater.

AutoIt

Local $bSuccess = False

;  Note: Requires Chilkat v9.5.0.65 or greater.

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

;  Load our previously obtained access token. (see PayPal OAuth2 Access Token)
$oJsonToken = ObjCreate("Chilkat.JsonObject")
$oJsonToken.LoadFile("qa_data/tokens/paypal.json")

;  Build the Authorization request header field value.
$oSbAuth = ObjCreate("Chilkat.StringBuilder")
;  token_type should be "Bearer"
$oSbAuth.Append($oJsonToken.StringOf("token_type"))
$oSbAuth.Append(" ")
$oSbAuth.Append($oJsonToken.StringOf("access_token"))

;  Make the initial connection.
;  A single REST object, once connected, can be used for many PayPal REST API calls.
;  The auto-reconnect indicates that if the already-established HTTPS connection is closed,
;  then it will be automatically re-established as needed.
$oRest = ObjCreate("Chilkat.Rest")
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect("api.sandbox.paypal.com",443,True,$bAutoReconnect)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  ----------------------------------------------------------------------------------------------
;  The code above this comment could be placed inside a function/subroutine within the application
;  because the connection does not need to be made for every request.  Once the connection is made
;  the app may send many requests..
;  ----------------------------------------------------------------------------------------------

;  Clear the REST object of any headers or query params from previous requests.
$oRest.ClearAllHeaders()
$oRest.ClearAllQueryParams()

$oRest.AddHeader("Authorization",$oSbAuth.GetAsString())

;  Send the POST request with an emtpy body and get the JSON response.
$oSbJsonRequest = ObjCreate("Chilkat.StringBuilder")
$oSbJsonResponse = ObjCreate("Chilkat.StringBuilder")
$bSuccess = $oRest.FullRequestSb("POST","/v1/invoicing/invoices/next-invoice-number",$oSbJsonRequest,$oSbJsonResponse)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.EmitCompact = False
$oJson.LoadSb($oSbJsonResponse)

ConsoleWrite("Response Status Code = " & $oRest.ResponseStatusCode & @CRLF)

;  Did we get a 200 success response?
If ($oRest.ResponseStatusCode <> 200) Then
    ConsoleWrite($oJson.Emit() & @CRLF)
    ConsoleWrite("Failed." & @CRLF)
    Exit
EndIf

;  Sample JSON response is shown below.
ConsoleWrite($oJson.Emit() & @CRLF)
ConsoleWrite("----------------------" & @CRLF)
ConsoleWrite("Next invoice number: " & $oJson.StringOf("number") & @CRLF)
ConsoleWrite("success" & @CRLF)

;  ------------------------------------------------
;  A sample JSON response:

;  	{ 
;  	  "number": "0003"
;  	}