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CkPython Web API Examples

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(CkPython) 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 Python Downloads

Python Module for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

import sys
import chilkat

# 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)
jsonToken = chilkat.CkJsonObject()
jsonToken.LoadFile("qa_data/tokens/paypal.json")

# Build the Authorization request header field value.
sbAuth = chilkat.CkStringBuilder()
# 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.
rest = chilkat.CkRest()
bAutoReconnect = True
success = rest.Connect("api.sandbox.paypal.com",443,True,bAutoReconnect)
if (success != True):
    print(rest.lastErrorText())
    sys.exit()

# ----------------------------------------------------------------------------------------------
# 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.
json = chilkat.CkJsonObject()
json.put_EmitCompact(False)
json.UpdateString("intent","sale")
json.UpdateString("payer.payment_method","credit_card")
json.UpdateString("payer.funding_instruments[0].credit_card.number","4032031087659974")
json.UpdateString("payer.funding_instruments[0].credit_card.type","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","9")
json.UpdateNumber("payer.funding_instruments[0].credit_card.expire_year","2021")
json.UpdateNumber("payer.funding_instruments[0].credit_card.cvv2","111")
json.UpdateString("payer.funding_instruments[0].credit_card.first_name","Joe")
json.UpdateString("payer.funding_instruments[0].credit_card.last_name","Buyer")
json.UpdateString("transactions[0].amount.total","7.47")
json.UpdateString("transactions[0].amount.currency","USD")
json.UpdateString("transactions[0].description","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",sbAuth.getAsString())
rest.AddHeader("Content-Type","application/json")

# Send the POST request containign the JSON in the request body, and get the JSON response.
sbJsonRequest = chilkat.CkStringBuilder()
json.put_EmitCompact(True)
json.EmitSb(sbJsonRequest)
sbJsonResponse = chilkat.CkStringBuilder()
success = rest.FullRequestSb("POST","/v1/payments/payment",sbJsonRequest,sbJsonResponse)
if (success != True):
    print(rest.lastErrorText())
    sys.exit()

json.put_EmitCompact(False)
json.LoadSb(sbJsonResponse)

print("Response Status Code = " + str(rest.get_ResponseStatusCode()))

# Did we get a 201 success response?
if (rest.get_ResponseStatusCode() != 201):
    print(json.emit())
    print("Failed.")
    sys.exit()

# 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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