Chilkat Examples

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Lianja Web API Examples

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(Lianja) PayPal - Create Stored Credit Card Payment

Creates a credit card payment using a card ID from a previously stored credit card (where the credit card was stored in PayPal's vault).

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 Lianja Extension Download

Chilkat Lianja Extension

// 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)
loJsonToken = createobject("CkJsonObject")
loJsonToken.LoadFile("qa_data/tokens/paypal.json")

// Build the Authorization request header field value.
loSbAuth = createobject("CkStringBuilder")
// token_type should be "Bearer"
loSbAuth.Append(loJsonToken.StringOf("token_type"))
loSbAuth.Append(" ")
loSbAuth.Append(loJsonToken.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.
loRest = createobject("CkRest")
llBAutoReconnect = .T.
llSuccess = loRest.Connect("api.sandbox.paypal.com",443,.T.,llBAutoReconnect)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loJsonToken
    release loSbAuth
    release loRest
    return
endif

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

// We previously stored the user's credit card data in PayPal's vault.
// See Store Card in PayPal Vault for sample code.

// Build the JSON containing the stored credit card information and transaction information.
loJson = createobject("CkJsonObject")
loJson.EmitCompact = .F.
loJson.UpdateString("intent","sale")
loJson.UpdateString("payer.payment_method","credit_card")
loJson.UpdateString("payer.funding_instruments[0].credit_card_token.credit_card_id","CARD-52W84623JH8043102LA3CLGA")
loJson.UpdateString("payer.funding_instruments[0].credit_card_token.payer_id","user12345")
loJson.UpdateString("transactions[0].amount.total","6.70")
loJson.UpdateString("transactions[0].amount.currency","USD")
loJson.UpdateString("transactions[0].description","This is the payment transaction description.")

? loJson.Emit()

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

// 	{ 
// 	  "intent": "sale",
// 	  "payer": { 
// 	    "payment_method": "credit_card",
// 	    "funding_instruments": [
// 	      { 
// 	        "credit_card_token": { 
// 	          "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
// 	          "payer_id": "user12345"
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "transactions": [
// 	    { 
// 	      "amount": { 
// 	        "total": "6.70",
// 	        "currency": "USD"
// 	      },
// 	      "description": "This is the payment transaction description."
// 	    }
// 	  ]
// 	}

loRest.AddHeader("Authorization",loSbAuth.GetAsString())
loRest.AddHeader("Content-Type","application/json")

// Send the POST request containign the JSON in the request body, and get the JSON response.
loSbJsonRequest = createobject("CkStringBuilder")
loJson.EmitCompact = .T.
loJson.EmitSb(loSbJsonRequest)
loSbJsonResponse = createobject("CkStringBuilder")
llSuccess = loRest.FullRequestSb("POST","/v1/payments/payment",loSbJsonRequest,loSbJsonResponse)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loJsonToken
    release loSbAuth
    release loRest
    release loJson
    release loSbJsonRequest
    release loSbJsonResponse
    return
endif

loJson.EmitCompact = .F.
loJson.LoadSb(loSbJsonResponse)

? "Response Status Code = " + str(loRest.ResponseStatusCode)

// Did we get a 201 success response?
if (loRest.ResponseStatusCode <> 201) then
    ? loJson.Emit()
    ? "Failed."
    release loJsonToken
    release loSbAuth
    release loRest
    release loJson
    release loSbJsonRequest
    release loSbJsonResponse
    return
endif

// Sample JSON response is shown below.
? loJson.Emit()

// Demonstrate how to access a few parts of the JSON response..
? "credit_card_id: " + loJson.StringOf("payer.funding_instruments[0].credit_card_token.credit_card_id")
? "subtotal: " + loJson.StringOf("transactions[0].amount.details.subtotal")
? "refund href: " + loJson.StringOf("transactions[0].related_resources[0].sale.links[1].href")
? "success"

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

// 	{ 
// 	  "id": "PAY-12T35751GS725073SLA3CQNQ",
// 	  "create_time": "2016-11-23T23:37:26Z",
// 	  "update_time": "2016-11-23T23:37:31Z",
// 	  "state": "approved",
// 	  "intent": "sale",
// 	  "payer": { 
// 	    "payment_method": "credit_card",
// 	    "funding_instruments": [
// 	      { 
// 	        "credit_card_token": { 
// 	          "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
// 	          "payer_id": "user12345",
// 	          "last4": "9974",
// 	          "type": "visa",
// 	          "expire_month": "9",
// 	          "expire_year": "2021"
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "transactions": [
// 	    { 
// 	      "amount": { 
// 	        "total": "6.70",
// 	        "currency": "USD",
// 	        "details": { 
// 	          "subtotal": "6.70"
// 	        }
// 	      },
// 	      "description": "This is the payment transaction description.",
// 	      "related_resources": [
// 	        { 
// 	          "sale": { 
// 	            "id": "4F194018A1618453G",
// 	            "create_time": "2016-11-23T23:37:26Z",
// 	            "update_time": "2016-11-23T23:37:31Z",
// 	            "amount": { 
// 	              "total": "6.70",
// 	              "currency": "USD"
// 	            },
// 	            "state": "completed",
// 	            "parent_payment": "PAY-12T35751GS725073SLA3CQNQ",
// 	            "links": [
// 	              { 
// 	                "href": "https://api.sandbox.paypal.com/v1/payments/sale/4F194018A1618453G",
// 	                "rel": "self",
// 	                "method": "GET"
// 	              },
// 	              { 
// 	                "href": "https://api.sandbox.paypal.com/v1/payments/sale/4F194018A1618453G/refund",
// 	                "rel": "refund",
// 	                "method": "POST"
// 	              },
// 	              { 
// 	                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-12T35751GS725073SLA3CQNQ",
// 	                "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-12T35751GS725073SLA3CQNQ",
// 	      "rel": "self",
// 	      "method": "GET"
// 	    }
// 	  ]
// 	}
// 


release loJsonToken
release loSbAuth
release loRest
release loJson
release loSbJsonRequest
release loSbJsonResponse

 

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