Instructions
- Create a new ASP page.
- Copy the entire code below and paste the code there.
- Replace MyUsername and MyPassword with your PostalMethods user details.
- Replace ID with the LetterID you would like to cancel.
- Start your application. If the response is -3000, PostalMethods is trying to cancel your letter. You should query its status. If the response is any other number, check the Web Service Status Codes section.
<%
'
' This asp script demonstrates how to cancel a delivery of a Letter, using MS SOAP 3.0
' and the CancelDelivery method within PostalMethods.
'
Option Explicit
Const MyUsername = "MyUsername"
Const MyPassword = "MyPassword"
' Replace with the LetterID of the Letter, as returned by the sending method, such as SendLetter()
Const LetterID="ID"
Dim objSoap, lngResult
'
'Create the SoapClient object 'MS SOAP v3.0
'
Set objSoap = Server.CreateObject("MSSOAP.SOAPClient30")
'
'Set to True when an Active Server Pages (ASP) application or an ISAPI DLL uses the SoapClient object.
'
objSoap.ClientProperty("ServerHTTPRequest") = True
'
'Initializes the SoapClient object. ASP initializes the WSDL on each call.
'For better performance, you may download the WSDL locally as an XML and refer to the local file.
'
objSoap.mssoapinit("http://api.postalmethods.com/PostalWS.asmx?WSDL")
'
'Set to True when a proxy server is to be detected automatically
'
objSoap.ConnectorProperty("EnableAutoProxy") = True
'
' Invoke the SendLetter method
'
lngResult = objSoap.CancelDelivery( _
MyUsername, _
MyPassword, _
LetterID)
If CLng(lngResult) = -3000 Then
'
' -3000 means the request was successfully marked for cancellation.
'
Response.Write "Letter was requested to be canceled"
Else
'
' A value less than -3000 means an error occurred.
' See the PostalMethods Status Codes: http://www.postalmethods.com/statuscodes.
'
Response.Write "Error is:" & lngResult
End If
%>
