(SQL Server) PayPal - Create Direct Credit Card Payment

Creates a direct credit card payment where your application passes the credit card, shipping, and payment information to PayPal.

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

Note: This is an example where you handle the card data directly, and therefore you would need to ensure you are PCI compliant. There are other ways to create a payment where your application does NOT handle the credit card data directly.

Note: This example requires Chilkat v9.5.0.64 or greater.

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- Note: Requires Chilkat v9.5.0.64 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)
    DECLARE @jsonToken int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonToken OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @jsonToken, 'LoadFile', @success OUT, 'qa_data/tokens/paypal.json'

    -- Build the Authorization request header field value.
    DECLARE @sbAuth int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbAuth OUT

    -- token_type should be "Bearer"
    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'token_type'
    EXEC sp_OAMethod @sbAuth, 'Append', @success OUT, @sTmp0
    EXEC sp_OAMethod @sbAuth, 'Append', @success OUT, ' '
    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'access_token'
    EXEC sp_OAMethod @sbAuth, 'Append', @success OUT, @sTmp0

    -- 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.
    DECLARE @rest int
    -- Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT

    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    DECLARE @success int
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'api.sandbox.paypal.com', 443, 1, @bAutoReconnect
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @sbAuth
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- ----------------------------------------------------------------------------------------------
    -- 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 and transaction information.
    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'intent', 'sale'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'payer.payment_method', 'credit_card'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'payer.funding_instruments[0].credit_card.number', '4032031087659974'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'payer.funding_instruments[0].credit_card.type', 'visa'
    -- Do NOT include a leading zero.  For example, do not use "09" for the month.
    EXEC sp_OAMethod @json, 'UpdateNumber', @success OUT, 'payer.funding_instruments[0].credit_card.expire_month', '9'
    EXEC sp_OAMethod @json, 'UpdateNumber', @success OUT, 'payer.funding_instruments[0].credit_card.expire_year', '2021'
    EXEC sp_OAMethod @json, 'UpdateNumber', @success OUT, 'payer.funding_instruments[0].credit_card.cvv2', '111'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'payer.funding_instruments[0].credit_card.first_name', 'Joe'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'payer.funding_instruments[0].credit_card.last_name', 'Buyer'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'transactions[0].amount.total', '7.47'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'transactions[0].amount.currency', 'USD'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'transactions[0].description', 'This is the payment transaction description.'

    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

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

    -- 	{ 
    -- 	  "intent": "sale",
    -- 	  "payer": { 
    -- 	    "payment_method": "credit_card",
    -- 	    "funding_instruments": [
    -- 	      { 
    -- 	        "credit_card": { 
    -- 	          "number": "4032031087659974",
    -- 	          "type": "visa",
    -- 	          "expire_month": 9,
    -- 	          "expire_year": 2021,
    -- 	          "cvv2": 111,
    -- 	          "first_name": "Joe",
    -- 	          "last_name": "Buyer"
    -- 	        }
    -- 	      }
    -- 	    ]
    -- 	  },
    -- 	  "transactions": [
    -- 	    { 
    -- 	      "amount": { 
    -- 	        "total": "7.47",
    -- 	        "currency": "USD"
    -- 	      },
    -- 	      "description": "This is the payment transaction description."
    -- 	    }
    -- 	  ]
    -- 	}

    EXEC sp_OAMethod @sbAuth, 'GetAsString', @sTmp0 OUT
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Authorization', @sTmp0
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Type', 'application/json'

    -- Send the POST request containign the JSON in the request body, and get the JSON response.
    DECLARE @sbJsonRequest int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbJsonRequest OUT

    EXEC sp_OASetProperty @json, 'EmitCompact', 1
    EXEC sp_OAMethod @json, 'EmitSb', @success OUT, @sbJsonRequest
    DECLARE @sbJsonResponse int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbJsonResponse OUT

    EXEC sp_OAMethod @rest, 'FullRequestSb', @success OUT, 'POST', '/v1/payments/payment', @sbJsonRequest, @sbJsonResponse
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @sbAuth
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @sbJsonRequest
        EXEC @hr = sp_OADestroy @sbJsonResponse
        RETURN
      END

    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'LoadSb', @success OUT, @sbJsonResponse


    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    PRINT 'Response Status Code = ' + @iTmp0

    -- Did we get a 201 success response?
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 201
      BEGIN
        EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed.'
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @sbAuth
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @sbJsonRequest
        EXEC @hr = sp_OADestroy @sbJsonResponse
        RETURN
      END

    -- Sample response JSON is shown below.
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    -- Demonstrate how to access a few parts of the JSON response..

    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'payer.funding_instruments[0].credit_card.number'
    PRINT 'cc number: ' + @sTmp0

    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'transactions[0].amount.details.subtotal'
    PRINT 'subtotal: ' + @sTmp0

    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'transactions[0].related_resources[0].sale.links[1].href'
    PRINT 'refund href: ' + @sTmp0

    -- 	{ 
    -- 	  "id": "PAY-66A12106PU3254228LA3BYKI",
    -- 	  "create_time": "2016-11-23T22:46:01Z",
    -- 	  "update_time": "2016-11-23T22:46:07Z",
    -- 	  "state": "approved",
    -- 	  "intent": "sale",
    -- 	  "payer": { 
    -- 	    "payment_method": "credit_card",
    -- 	    "funding_instruments": [
    -- 	      { 
    -- 	        "credit_card": { 
    -- 	          "type": "visa",
    -- 	          "number": "xxxxxxxxxxxx9974",
    -- 	          "expire_month": "9",
    -- 	          "expire_year": "2021",
    -- 	          "first_name": "Joe",
    -- 	          "last_name": "Buyer"
    -- 	        }
    -- 	      }
    -- 	    ]
    -- 	  },
    -- 	  "transactions": [
    -- 	    { 
    -- 	      "amount": { 
    -- 	        "total": "7.47",
    -- 	        "currency": "USD",
    -- 	        "details": { 
    -- 	          "subtotal": "7.47"
    -- 	        }
    -- 	      },
    -- 	      "description": "This is the payment transaction description.",
    -- 	      "related_resources": [
    -- 	        { 
    -- 	          "sale": { 
    -- 	            "id": "70L88278E6781074B",
    -- 	            "create_time": "2016-11-23T22:46:01Z",
    -- 	            "update_time": "2016-11-23T22:46:07Z",
    -- 	            "amount": { 
    -- 	              "total": "7.47",
    -- 	              "currency": "USD"
    -- 	            },
    -- 	            "state": "completed",
    -- 	            "parent_payment": "PAY-66A12106PU3254228LA3BYKI",
    -- 	            "links": [
    -- 	              { 
    -- 	                "href": "https://api.sandbox.paypal.com/v1/payments/sale/70L88278E6781074B",
    -- 	                "rel": "self",
    -- 	                "method": "GET"
    -- 	              },
    -- 	              { 
    -- 	                "href": "https://api.sandbox.paypal.com/v1/payments/sale/70L88278E6781074B/refund",
    -- 	                "rel": "refund",
    -- 	                "method": "POST"
    -- 	              },
    -- 	              { 
    -- 	                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-66A12106PU3254228LA3BYKI",
    -- 	                "rel": "parent_payment",
    -- 	                "method": "GET"
    -- 	              }
    -- 	            ],
    -- 	            "fmf_details": {},
    -- 	            "processor_response": { 
    -- 	              "avs_code": "X",
    -- 	              "cvv_code": "M"
    -- 	            }
    -- 	          }
    -- 	        }
    -- 	      ]
    -- 	    }
    -- 
    -- 	  ],
    -- 	  "links": [
    -- 	    { 
    -- 	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-66A12106PU3254228LA3BYKI",
    -- 	      "rel": "self",
    -- 	      "method": "GET"
    -- 	    }
    -- 	  ]
    -- 	}
    -- 

    EXEC @hr = sp_OADestroy @jsonToken
    EXEC @hr = sp_OADestroy @sbAuth
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @sbJsonRequest
    EXEC @hr = sp_OADestroy @sbJsonResponse


END
GO