PowerBuilder

PayPal - Create a PayPal Payment

See more PayPal Examples

Creates a payment to be paid from a PayPal account (as opposed to being funded by a credit card).

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

PowerBuilder

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

li_Success = 0

//  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
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
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
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 transaction information.
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.EmitCompact = 0
loo_Json.UpdateString("intent","sale")
loo_Json.UpdateString("redirect_urls.return_url","http://www.example.com/return_url")
loo_Json.UpdateString("redirect_urls.cancel_url","http://www.example.com/cancel_url")
loo_Json.UpdateString("payer.payment_method","paypal")
loo_Json.UpdateString("transactions[0].amount.total","7.47")
loo_Json.UpdateString("transactions[0].amount.currency","USD")
loo_Json.UpdateString("transactions[0].description","This is the payment transaction description.")

Write-Debug loo_Json.Emit()

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

//  	{ 
//  	  "intent": "sale",
//  	  "redirect_urls": { 
//  	    "return_url": "http://www.example.com/return_url",
//  	    "cancel_url": "http://www.example.com/cancel_url"
//  	  },
//  	  "payer": { 
//  	    "payment_method": "paypal"
//  	  },
//  	  "transactions": [
//  	    { 
//  	      "amount": { 
//  	        "total": "7.47",
//  	        "currency": "USD"
//  	      },
//  	      "description": "This is the payment transaction description."
//  	    }
//  	  ]
//  	}

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
li_rc = loo_SbJsonRequest.ConnectToNewObject("Chilkat.StringBuilder")

loo_Json.EmitCompact = 1
loo_Json.EmitSb(loo_SbJsonRequest)
loo_SbJsonResponse = create oleobject
li_rc = loo_SbJsonResponse.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Rest.FullRequestSb("POST","/v1/payments/payment",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

//  Sample JSON response is shown below.
Write-Debug loo_Json.Emit()
Write-Debug "success"

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

//  	{ 
//  	  "id": "PAY-1XK50350XV338620BLA3CZGI",
//  	  "intent": "sale",
//  	  "state": "created",
//  	  "payer": { 
//  	    "payment_method": "paypal",
//  	    "use_vendor_currency_conversion": false
//  	  },
//  	  "transactions": [
//  	    { 
//  	      "amount": { 
//  	        "total": "7.47",
//  	        "currency": "USD"
//  	      },
//  	      "description": "This is the payment transaction description.",
//  	      "related_resources": [
//  	      ]
//  	    }
//  	  ],
//  	  "create_time": "2016-11-23T23:56:09Z",
//  	  "links": [
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-1XK50350XV338620BLA3CZGI",
//  	      "rel": "self",
//  	      "method": "GET"
//  	    },
//  	    { 
//  	      "href": "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-0BG932459F977083J",
//  	      "rel": "approval_url",
//  	      "method": "REDIRECT"
//  	    },
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-1XK50350XV338620BLA3CZGI/execute",
//  	      "rel": "execute",
//  	      "method": "POST"
//  	    }
//  	  ]
//  	}


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