(PowerBuilder) PayPal - Store Credit Card in Vault

Saves the buyer's credit card information to PayPal's vault. This avoids storing credit card details on your server and thus PCI compliance is no longer an issue.

Note: For sandbox calls, you can use the credit card numbers provided in your sandbox test accounts.

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_JsonToken
oleobject loo_SbAuth
oleobject loo_Rest
integer li_BAutoReconnect
integer li_Success
oleobject loo_Json
oleobject loo_SbJsonRequest
oleobject loo_SbJsonResponse

// 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)
loo_JsonToken = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_JsonToken.LoadFile("qa_data/tokens/paypal.json")

// Build the Authorization request header field value.
loo_SbAuth = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbAuth.ConnectToNewObject("Chilkat.StringBuilder")

// token_type should be "Bearer"
loo_SbAuth.Append(loo_JsonToken.StringOf("token_type"))
loo_SbAuth.Append(" ")
loo_SbAuth.Append(loo_JsonToken.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.
loo_Rest = create oleobject
// Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")

li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("api.sandbox.paypal.com",443,1,li_BAutoReconnect)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_JsonToken
    destroy loo_SbAuth
    destroy loo_Rest
    return
end if

// ----------------------------------------------------------------------------------------------
// 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..
// ----------------------------------------------------------------------------------------------

// Build the JSON containing the credit card data.
loo_Json = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.EmitCompact = 0
loo_Json.UpdateString("payer_id","user12345")
loo_Json.UpdateString("type","visa")
loo_Json.UpdateString("number","4032031087659974")
loo_Json.UpdateString("expire_month","9")
loo_Json.UpdateString("expire_year","2021")
loo_Json.UpdateString("first_name","Joe")
loo_Json.UpdateString("last_name","Shopper")

Write-Debug loo_Json.Emit()

// The JSON created by the above code is this:

// 	{ 
// 	  "payer_id": "user12345",
// 	  "type": "visa",
// 	  "number": "4032031087659974",
// 	  "expire_month": "9",
// 	  "expire_year": "2021",
// 	  "first_name": "Joe",
// 	  "last_name": "Shopper"
// 	}

loo_Rest.AddHeader("Authorization",loo_SbAuth.GetAsString())
loo_Rest.AddHeader("Content-Type","application/json")

// Send the POST request containign the JSON in the request body, and get the JSON response.
loo_SbJsonRequest = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbJsonRequest.ConnectToNewObject("Chilkat.StringBuilder")

loo_Json.EmitCompact = 1
loo_Json.EmitSb(loo_SbJsonRequest)
loo_SbJsonResponse = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbJsonResponse.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Rest.FullRequestSb("POST","/v1/vault/credit-card",loo_SbJsonRequest,loo_SbJsonResponse)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_JsonToken
    destroy loo_SbAuth
    destroy loo_Rest
    destroy loo_Json
    destroy loo_SbJsonRequest
    destroy loo_SbJsonResponse
    return
end if

loo_Json.EmitCompact = 0
loo_Json.LoadSb(loo_SbJsonResponse)

Write-Debug "Response Status Code = " + string(loo_Rest.ResponseStatusCode)

// Did we get a 201 success response?
if loo_Rest.ResponseStatusCode <> 201 then
    Write-Debug loo_Json.Emit()
    Write-Debug "Failed."
    destroy loo_JsonToken
    destroy loo_SbAuth
    destroy loo_Rest
    destroy loo_Json
    destroy loo_SbJsonRequest
    destroy loo_SbJsonResponse
    return
end if

// a sample JSON response is shown below.
Write-Debug loo_Json.Emit()

// // The "id" is what will be used to create a payment with the stored credit card.
Write-Debug "card ID: " + loo_Json.StringOf("id")
Write-Debug "success."

// ---------------------------------------------------------
// A sample JSON response:

// 	{ 
// 	  "id": "CARD-52W84623JH8043102LA3CLGA",
// 	  "state": "ok",
// 	  "payer_id": "user12345",
// 	  "type": "visa",
// 	  "number": "xxxxxxxxxxxx9974",
// 	  "expire_month": "9",
// 	  "expire_year": "2021",
// 	  "first_name": "Joe",
// 	  "last_name": "Shopper",
// 	  "valid_until": "2019-11-23T00:00:00Z",
// 	  "create_time": "2016-11-23T23:26:16Z",
// 	  "update_time": "2016-11-23T23:26:16Z",
// 	  "links": [
// 	    { 
// 	      "href": "https://api.sandbox.paypal.com/v1/vault/credit-card/CARD-52W84623JH8043102LA3CLGA",
// 	      "rel": "self",
// 	      "method": "GET"
// 	    },
// 	    { 
// 	      "href": "https://api.sandbox.paypal.com/v1/vault/credit-card/CARD-52W84623JH8043102LA3CLGA",
// 	      "rel": "delete",
// 	      "method": "DELETE"
// 	    },
// 	    { 
// 	      "href": "https://api.sandbox.paypal.com/v1/vault/credit-card/CARD-52W84623JH8043102LA3CLGA",
// 	      "rel": "patch",
// 	      "method": "PATCH"
// 	    }
// 	  ]
// 	


destroy loo_JsonToken
destroy loo_SbAuth
destroy loo_Rest
destroy loo_Json
destroy loo_SbJsonRequest
destroy loo_SbJsonResponse