Java

PayPal - Create a PayPal Payment

See more PayPal Examples

Creates a payment to be paid from a PayPal account (as opposed to being funded by a credit card).

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // 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)
        JsonObject jsonToken = new JsonObject();
        jsonToken.loadFile("qa_data/tokens/paypal.json");

        // Build the Authorization request header field value.
        StringBuilder sbAuth = new StringBuilder();
        // 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 rest = new Rest();
        boolean bAutoReconnect = true;
        try {
            rest.connect("api.sandbox.paypal.com", 443, true, bAutoReconnect);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            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 transaction information.
        JsonObject json = new JsonObject();
        json.setEmitCompact(false);
        json.updateString("intent", "sale");
        json.updateString("redirect_urls.return_url", "http://www.example.com/return_url");
        json.updateString("redirect_urls.cancel_url", "http://www.example.com/cancel_url");
        json.updateString("payer.payment_method", "paypal");
        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.");

        System.out.println(json.emit());

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

        //     {
        //       "intent": "sale",
        //       "redirect_urls": {
        //         "return_url": "http://www.example.com/return_url",
        //         "cancel_url": "http://www.example.com/cancel_url"
        //       },
        //       "payer": {
        //         "payment_method": "paypal"
        //       },
        //       "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.
        StringBuilder sbJsonRequest = new StringBuilder();
        json.setEmitCompact(true);
        json.emitSb(sbJsonRequest);
        StringBuilder sbJsonResponse = new StringBuilder();
        try {
            rest.fullRequestSb("POST", "/v1/payments/payment", sbJsonRequest, sbJsonResponse);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        json.setEmitCompact(false);
        json.loadSb(sbJsonResponse);

        System.out.println("Response Status Code = " + rest.getResponseStatusCode());

        // Did we get a 201 success response?
        if (rest.getResponseStatusCode() != 201) {
            System.out.println(json.emit());
            System.out.println("Failed.");
            return;
        }

        // Sample JSON response is shown below.
        System.out.println(json.emit());
        System.out.println("success");

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

        //     {
        //       "id": "PAY-1XK50350XV338620BLA3CZGI",
        //       "intent": "sale",
        //       "state": "created",
        //       "payer": {
        //         "payment_method": "paypal",
        //         "use_vendor_currency_conversion": false
        //       },
        //       "transactions": [
        //         {
        //           "amount": {
        //             "total": "7.47",
        //             "currency": "USD"
        //           },
        //           "description": "This is the payment transaction description.",
        //           "related_resources": [
        //           ]
        //         }
        //       ],
        //       "create_time": "2016-11-23T23:56:09Z",
        //       "links": [
        //         {
        //           "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-1XK50350XV338620BLA3CZGI",
        //           "rel": "self",
        //           "method": "GET"
        //         },
        //         {
        //           "href": "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-0BG932459F977083J",
        //           "rel": "approval_url",
        //           "method": "REDIRECT"
        //         },
        //         {
        //           "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-1XK50350XV338620BLA3CZGI/execute",
        //           "rel": "execute",
        //           "method": "POST"
        //         }
        //       ]
        //     }
    }
}