Chilkat Examples

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Swift 2 Web API Examples

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(Swift 2) 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 Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

func chilkatTest() {
    // 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)
    let jsonToken = CkoJsonObject()
    jsonToken.LoadFile("qa_data/tokens/paypal.json")

    // Build the Authorization request header field value.
    let sbAuth = CkoStringBuilder()
    // token_type should be "Bearer"
    sbAuth.Append(jsonToken.StringOf("token_type"))
    sbAuth.Append(" ")
    sbAuth.Append(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.
    let rest = CkoRest()
    var bAutoReconnect: Bool = true
    var success: Bool = rest.Connect("api.sandbox.paypal.com", port: 443, tls: true, autoReconnect: bAutoReconnect)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    // ----------------------------------------------------------------------------------------------
    // 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.
    let json = CkoJsonObject()
    json.EmitCompact = false
    json.UpdateString("intent", value: "sale")
    json.UpdateString("payer.payment_method", value: "credit_card")
    json.UpdateString("payer.funding_instruments[0].credit_card.number", value: "4032031087659974")
    json.UpdateString("payer.funding_instruments[0].credit_card.type", value: "visa")
    // Do NOT include a leading zero.  For example, do not use "09" for the month.
    json.UpdateNumber("payer.funding_instruments[0].credit_card.expire_month", numericStr: "9")
    json.UpdateNumber("payer.funding_instruments[0].credit_card.expire_year", numericStr: "2021")
    json.UpdateNumber("payer.funding_instruments[0].credit_card.cvv2", numericStr: "111")
    json.UpdateString("payer.funding_instruments[0].credit_card.first_name", value: "Joe")
    json.UpdateString("payer.funding_instruments[0].credit_card.last_name", value: "Buyer")
    json.UpdateString("transactions[0].amount.total", value: "7.47")
    json.UpdateString("transactions[0].amount.currency", value: "USD")
    json.UpdateString("transactions[0].description", value: "This is the payment transaction description.")

    print("\(json.Emit())")

    // 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."
    // 	    }
    // 	  ]
    // 	}

    rest.AddHeader("Authorization", value: sbAuth.GetAsString())
    rest.AddHeader("Content-Type", value: "application/json")

    // Send the POST request containign the JSON in the request body, and get the JSON response.
    let sbJsonRequest = CkoStringBuilder()
    json.EmitCompact = true
    json.EmitSb(sbJsonRequest)
    let sbJsonResponse = CkoStringBuilder()
    success = rest.FullRequestSb("POST", uriPath: "/v1/payments/payment", requestBody: sbJsonRequest, responseBody: sbJsonResponse)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    json.EmitCompact = false
    json.LoadSb(sbJsonResponse)

    print("Response Status Code = \(rest.ResponseStatusCode.intValue)")

    // Did we get a 201 success response?
    if rest.ResponseStatusCode.intValue != 201 {
        print("\(json.Emit())")
        print("Failed.")
        return
    }

    // Sample response JSON is shown below.
    print("\(json.Emit())")

    // Demonstrate how to access a few parts of the JSON response..
    print("cc number: \(json.StringOf("payer.funding_instruments[0].credit_card.number"))")
    print("subtotal: \(json.StringOf("transactions[0].amount.details.subtotal"))")
    print("refund href: \(json.StringOf("transactions[0].related_resources[0].sale.links[1].href"))")

    // 	{ 
    // 	  "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"
    // 	    }
    // 	  ]
    // 	}
    // 

}

 

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