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restpaypalasp-classic

Using Paypal REST API with Classic ASP


I am trying to make a simple call to Paypal API with the follow code:

On error resume next

Set objHTTP = CreateObject("Microsoft.XMLHTTP")
objHTTP.open "POST", "https://api.sandbox.paypal.com/v1/oauth2/token", False

objHTTP.setRequestHeader "Accept", "application/json"
objHTTP.setRequestHeader "Accept-Language", "en_US"
objHTTP.setRequestHeader "Authorization", "Basic " & Base64Encode("client-id:secret")
objHTTP.send "grant_type=client_credentials"

Response.Write err.description & " | " & err.number

But its returning the error:

The download of the specified resource has failed

I can do this call with de Postman without problem. I am in localhost and Im not using a SSL on my site (dont know if its affect).


Solution

  • To solve my problem I am using the NVP API and now I am doing something like this

    Set objHTTP = CreateObject("Msxml2.ServerXMLHTTP.6.0")
    objHTTP.open "POST", "https://api-3t.sandbox.paypal.com/nvp", False
    
    Dim data
    data = "USER=" & paypal_user_name &_
    "&PWD=" & paypal_psw &_
    "&SIGNATURE=" & paypal_signature &_
    "&VERSION=204.0" &_
    "&RETURNURL=" & return &_
    "&CANCELURL=" & cancel &_
    "&PAYMENTREQUEST_0_PAYMENTACTION=Sale" &_
    "&PAYMENTREQUEST_0_AMT=" & Request.QueryString("val") &_
    "&PAYMENTREQUEST_0_CURRENCYCODE=BRL" &_
    "&L_PAYMENTREQUEST_0_NAME0=" & Request.QueryString("pac") &_
    "&L_PAYMENTREQUEST_0_AMT0=" & Request.QueryString("val") &_
    "&NOSHIPPING=1" &_
    "&METHOD=SetExpressCheckout"
    
    objHTTP.send data
    

    And its working very fine