Dart
Dart
PayPal - Create Direct Credit Card Payment
See more PayPal Examples
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.
Chilkat Dart Downloads
import 'package:chilkat/chilkat.dart';
void main() {
// 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)
final jsonToken = CkJsonObject();
jsonToken.loadFile('qa_data/tokens/paypal.json');
// Build the Authorization request header field value.
final sbAuth = 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.
final rest = CkRest();
final bAutoReconnect = true;
try {
rest.connect('api.sandbox.paypal.com', 443, true, bAutoReconnect);
} on ChilkatException catch (e) {
print(e.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.
final json = CkJsonObject();
json.emitCompact = false;
json.updateString('intent', 'sale');
json.updateString('payer.payment_method', 'credit_card');
json.updateString('payer.funding_instruments[0].credit_card.number', '4032034813337237');
json.updateString('payer.funding_instruments[0].credit_card.type', 'visa');
json.updateString('payer.funding_instruments[0].credit_card.expire_month', '9');
json.updateString('payer.funding_instruments[0].credit_card.expire_year', '2028');
json.updateString('payer.funding_instruments[0].credit_card.cvv2', '123');
json.updateString('transactions[0].amount.total', '10.00');
json.updateString('transactions[0].amount.currency', 'USD');
json.updateString('transactions[0].payee.email', 'payee@example.com');
// Use a sandbox CC number for testing:
// 
print(json.emit());
// The JSON created by the above code is this:
// -----------------------------------------------------------------
// Ensure that payee@example.com is a valid sandbox business account
// -----------------------------------------------------------------
// {
// "intent": "sale",
// "payer": {
// "payment_method": "credit_card",
// "funding_instruments": [
// {
// "credit_card": {
// "number": "4032034813337237",
// "type": "visa",
// "expire_month": "9",
// "expire_year": "2028",
// "cvv2": "123"
// }
// }
// ]
// },
// "transactions": [
// {
// "amount": {
// "total": "10.00",
// "currency": "USD"
// },
// "payee": {
// "email": "payee@example.com"
// }
// }
// ]
// }
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.
final sbJsonRequest = CkStringBuilder();
json.emitCompact = true;
json.emitSb(sbJsonRequest);
final sbJsonResponse = CkStringBuilder();
try {
rest.fullRequestSb('POST', '/v1/payments/payment', sbJsonRequest, sbJsonResponse);
} on ChilkatException catch (e) {
print(e.lastErrorText);
return;
}
json.emitCompact = false;
json.loadSb(sbJsonResponse);
print('Response Status Code = ${rest.responseStatusCode}');
// Did we get a 201 success response?
if (rest.responseStatusCode != 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"
// }
// ]
// }
//
}