PayPal Checkout Java SDK v2

Welcome to PayPal Checkout. This repository contains PayPal's Java SDK for Checkout and samples for v2/checkout/orders and v2/payments APIs.

This is a part of the next major PayPal SDK. It includes a simplified interface to only provide simple model objects and blueprints for HTTP calls. This repo currently contains functionality for PayPal Checkout APIs which includes Orders V2 and Payments V2.

Please refer to the PayPal Checkout Integration Guide for more information. Also refer to Setup your SDK for additional information about setting up the SDK's.

Prerequisites

Java JDK 8 or higher

An environment which supports TLS 1.2 (see the TLS-update site for more information)

Usage

Binaries

It is not mandatory to fork this repository for using the PayPal SDK. You can refer PayPal Checkout Server SDK for configuring and working with SDK without forking this code.

For contirbuting or referrring the samples, You can fork/refer this repository.

Setting up credentials

Get client ID and client secret by going to https://developer.paypal.com/developer/applications and generating a REST API app. Get Client ID and Secret from there.

package com.paypal;
import com.paypal.core.PayPalEnvironment;
import com.paypal.core.PayPalHttpClient;
public class Credentials {
    static String clientId = "CLIENT-ID";
    static String secret = "CLIENT-SECRET";
    
    // Creating a sandbox environment
    private static PayPalEnvironment environment = new PayPalEnvironment.Sandbox(clientId, secret);
    
    // Creating a client for the environment
    static PayPalHttpClient client = new PayPalHttpClient(environment);
}

Examples

Creating an Order

This will create an order and print order id for the created order

package com.paypal;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.braintreepayments.http.HttpResponse;
import com.braintreepayments.http.exceptions.HttpException;
import com.paypal.orders.*;

public class CreateOrderExample {
	public static void main(String[] args) {

		Order order = null;
		// Construct a request object and set desired parameters
		// Here, OrdersCreateRequest() creates a POST request to /v2/checkout/orders
		OrderRequest orderRequest = new OrderRequest();
		orderRequest.intent("CAPTURE");
		List<PurchaseUnitRequest> purchaseUnits = new ArrayList<>();
		purchaseUnits
				.add(new PurchaseUnitRequest().amount(new AmountWithBreakdown().currencyCode("USD").value("100.00")));
		orderRequest.purchaseUnits(purchaseUnits);
		OrdersCreateRequest request = new OrdersCreateRequest().requestBody(orderRequest);

		try {
			// Call API with your client and get a response for your call
			HttpResponse<Order> response = Credentials.client.execute(request);

			// If call returns body in response, you can get the de-serialized version by
			// calling result() on the response
			order = response.result();
			System.out.println("Order ID: " + order.id());
			order.links().forEach(link -> System.out.println(link.rel() + " => " + link.method() + ":" + link.href()));
		} catch (IOException ioe) {
			if (ioe instanceof HttpException) {
				// Something went wrong server-side
				HttpException he = (HttpException) ioe;
				System.out.println(he.getMessage());
				he.headers().forEach(x -> System.out.println(x + " :" + he.headers().header(x)));
			} else {
				// Something went wrong client-side
			}
		}
	}
}

Capturing an Order

This will capture an order

package com.paypal;

import java.io.IOException;

import com.braintreepayments.http.HttpResponse;
import com.braintreepayments.http.exceptions.HttpException;
import com.paypal.orders.*;

public class CaptureOrderExample {
	public static void main(String[] args) {
		Order order = null;
		OrdersCaptureRequest request = new OrdersCaptureRequest("APPROVED-ORDER-ID");

		try {
			// Call API with your client and get a response for your call
			HttpResponse<Order> response = Credentials.client.execute(request);

			// If call returns body in response, you can get the de-serialized version by
			// calling result() on the response
			order = response.result();
			System.out.println("Capture ID: " + order.purchaseUnits().get(0).payments().captures().get(0).id());
			order.purchaseUnits().get(0).payments().captures().get(0).links()
					.forEach(link -> System.out.println(link.rel() + " => " + link.method() + ":" + link.href()));
		} catch (IOException ioe) {
			if (ioe instanceof HttpException) {
				// Something went wrong server-side
				HttpException he = (HttpException) ioe;
				System.out.println(he.getMessage());
				he.headers().forEach(x -> System.out.println(x + " :" + he.headers().header(x)));
			} else {
				// Something went wrong client-side
			}
		}
	}
}

Running tests

To run integration tests using your client id and secret, run the test gradle command with the -Pintegration flag

$ PAYPAL_CLIENT_ID=your_client_id PAYPAL_CLIENT_SECRET=your_client_secret ./gradlew clean test -Pintegration

You may use the client id and secret above for demonstration purposes.

Samples

You can start off by trying out creating and capturing an order.

To try out different samples for both create and authorize intent head to this link.

Note: Update the PayPalClient.java with your sandbox client credentials or pass your client credentials as environment variable whie executing the samples.

License

Code released under SDK LICENSE