├── .classpath
├── .gitignore
├── .project
├── README.md
├── pom.xml
└── src
    └── main
        ├── java
            └── com
            │   └── masasdani
            │       └── paypal
            │           ├── Application.java
            │           ├── config
            │               ├── PaypalConfig.java
            │               ├── PaypalPaymentIntent.java
            │               └── PaypalPaymentMethod.java
            │           ├── controller
            │               └── PaymentController.java
            │           ├── service
            │               └── PaypalService.java
            │           └── util
            │               └── URLUtils.java
        └── resources
            ├── application.properties
            └── templates
                ├── cancel.html
                ├── index.html
                └── success.html


/.classpath:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <classpath>
 3 | 	<classpathentry kind="src" output="target/classes" path="src/main/java">
 4 | 		<attributes>
 5 | 			<attribute name="optional" value="true"/>
 6 | 			<attribute name="maven.pomderived" value="true"/>
 7 | 		</attributes>
 8 | 	</classpathentry>
 9 | 	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
10 | 		<attributes>
11 | 			<attribute name="maven.pomderived" value="true"/>
12 | 		</attributes>
13 | 	</classpathentry>
14 | 	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
15 | 		<attributes>
16 | 			<attribute name="optional" value="true"/>
17 | 			<attribute name="maven.pomderived" value="true"/>
18 | 		</attributes>
19 | 	</classpathentry>
20 | 	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
21 | 		<attributes>
22 | 			<attribute name="maven.pomderived" value="true"/>
23 | 		</attributes>
24 | 	</classpathentry>
25 | 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
26 | 		<attributes>
27 | 			<attribute name="maven.pomderived" value="true"/>
28 | 		</attributes>
29 | 	</classpathentry>
30 | 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
31 | 		<attributes>
32 | 			<attribute name="maven.pomderived" value="true"/>
33 | 		</attributes>
34 | 	</classpathentry>
35 | 	<classpathentry kind="output" path="target/classes"/>
36 | </classpath>
37 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | .idea
2 | .DS_Store
3 | .settings
4 | target
5 | 


--------------------------------------------------------------------------------
/.project:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <projectDescription>
 3 | 	<name>paypal-springboot</name>
 4 | 	<comment></comment>
 5 | 	<projects>
 6 | 	</projects>
 7 | 	<buildSpec>
 8 | 		<buildCommand>
 9 | 			<name>org.eclipse.wst.common.project.facet.core.builder</name>
10 | 			<arguments>
11 | 			</arguments>
12 | 		</buildCommand>
13 | 		<buildCommand>
14 | 			<name>org.eclipse.jdt.core.javabuilder</name>
15 | 			<arguments>
16 | 			</arguments>
17 | 		</buildCommand>
18 | 		<buildCommand>
19 | 			<name>org.eclipse.m2e.core.maven2Builder</name>
20 | 			<arguments>
21 | 			</arguments>
22 | 		</buildCommand>
23 | 		<buildCommand>
24 | 			<name>org.springframework.ide.eclipse.core.springbuilder</name>
25 | 			<arguments>
26 | 			</arguments>
27 | 		</buildCommand>
28 | 	</buildSpec>
29 | 	<natures>
30 | 		<nature>org.springframework.ide.eclipse.core.springnature</nature>
31 | 		<nature>org.eclipse.jdt.core.javanature</nature>
32 | 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
33 | 		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
34 | 	</natures>
35 | </projectDescription>
36 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | Paypal REST API Payment using Spring Boot
 2 | =========================================
 3 | This is sample project how to implement paypal rest api to spring boot web application,
 4 | if you see pom.xml it will show you that it's using spring boot 1.3.0 starter web, using thymeleaf as template engine, and Paypal Java SDK.
 5 | 
 6 | Prerequisites:
 7 | ==============
 8 | *	Java JDK-1.7 or higher
 9 | *	Apache Maven 3 or higher
10 | *	Please refer http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html for any help in Maven.
11 | 
12 | Usage
13 | =====
14 | to run this sample, please at first crete paypal account and register your apps to http://developer.paypal.com, get your app configuration and then change paypal configuration in src/main/resource/application.properties of your project
15 | 
16 | 		
17 | 		paypal.mode=sandbox
18 | 		paypal.client.app=xxxxxxxxxxxxxxxxxxYOUR_CLIENT_IDxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
19 | 		paypal.client.secret=xxxxxxxxxxxxxxxxxxYOUR_CLIENT_SECRETxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
20 | 		
21 | 
22 | Then run it using maven :
23 | 
24 | 		
25 | 		mvn spring-boot:run
26 | 		
27 | 
28 | Test in your browser : 
29 | 
30 | 		
31 | 		http://localhost:8080
32 | 		
33 | 
34 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
 1 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 2 |   <modelVersion>4.0.0</modelVersion>
 3 |   <groupId>com.masasdani</groupId>
 4 |   <artifactId>paypal-springboot</artifactId>
 5 |   <version>0.0.1-SNAPSHOT</version>
 6 |   <name>paypal-springboot</name>
 7 |   
 8 |   <repositories>
 9 | 		<repository>
10 | 			<id>spring-milestones</id>
11 | 			<name>Spring Milestones</name>
12 | 			<url>http://repo.spring.io/libs-milestone</url>
13 | 		</repository>
14 | 		<repository>
15 | 			<id>jcenter-snapshots</id>
16 | 			<name>jcenter</name>
17 | 			<url>https://jcenter.bintray.com/</url>
18 | 		</repository>
19 | 	</repositories>
20 | 
21 | 	<pluginRepositories>
22 | 		<pluginRepository>
23 | 			<id>spring-milestones</id>
24 | 			<name>Spring Milestones</name>
25 | 			<url>http://repo.spring.io/libs-milestone</url>
26 | 		</pluginRepository>
27 | 	</pluginRepositories>
28 | 
29 | 	<parent>
30 | 		<groupId>org.springframework.boot</groupId>
31 | 		<artifactId>spring-boot-starter-parent</artifactId>
32 | 		<version>1.3.0.RELEASE</version>
33 | 	</parent>
34 | 
35 | 	<properties>
36 | 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
37 | 		<java.version>1.8</java.version>
38 | 	</properties>
39 | 
40 | 	<dependencies>
41 | 		<dependency>
42 | 			<groupId>org.springframework.boot</groupId>
43 | 			<artifactId>spring-boot-starter-web</artifactId>
44 | 		</dependency>
45 | 		<dependency>
46 | 			<groupId>org.springframework.boot</groupId>
47 | 			<artifactId>spring-boot-starter-thymeleaf</artifactId>
48 | 		</dependency>
49 | 		<dependency>
50 | 			<groupId>com.paypal.sdk</groupId>
51 | 			<artifactId>rest-api-sdk</artifactId>
52 | 			<version>1.4.2</version>
53 | 		</dependency>
54 | 	</dependencies>
55 | 
56 | 	<build>
57 | 		<plugins>
58 | 			<plugin>
59 | 				<groupId>org.apache.maven.plugins</groupId>
60 | 				<artifactId>maven-compiler-plugin</artifactId>
61 | 				<configuration>
62 | 					<source>${java.version}</source>
63 | 					<target>${java.version}</target>
64 | 				</configuration>
65 | 			</plugin>
66 | 		</plugins>
67 | 	</build>
68 | </project>


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/src/main/java/com/masasdani/paypal/Application.java:
--------------------------------------------------------------------------------
 1 | package com.masasdani.paypal;
 2 | 
 3 | import org.springframework.boot.SpringApplication;
 4 | import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 5 | import org.springframework.context.annotation.ComponentScan;
 6 | import org.springframework.context.annotation.Configuration;
 7 | 
 8 | @EnableAutoConfiguration
 9 | @Configuration
10 | @ComponentScan
11 | public class Application {
12 | 
13 | 	public static void main(String[] args) {
14 | 		SpringApplication.run(Application.class, args);
15 | 	}
16 | }


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/src/main/java/com/masasdani/paypal/config/PaypalConfig.java:
--------------------------------------------------------------------------------
 1 | package com.masasdani.paypal.config;
 2 | 
 3 | import java.util.HashMap;
 4 | import java.util.Map;
 5 | 
 6 | import org.springframework.beans.factory.annotation.Value;
 7 | import org.springframework.context.annotation.Bean;
 8 | import org.springframework.context.annotation.Configuration;
 9 | 
10 | import com.paypal.base.rest.APIContext;
11 | import com.paypal.base.rest.OAuthTokenCredential;
12 | import com.paypal.base.rest.PayPalRESTException;
13 | 
14 | @Configuration
15 | public class PaypalConfig {
16 | 
17 | 	@Value("${paypal.client.app}")
18 |     private String clientId;
19 | 	@Value("${paypal.client.secret}")
20 |     private String clientSecret;
21 | 	@Value("${paypal.mode}")
22 |     private String mode;
23 |     
24 | 	@Bean
25 | 	public Map<String, String> paypalSdkConfig(){
26 | 		Map<String, String> sdkConfig = new HashMap<>();
27 | 		sdkConfig.put("mode", mode);
28 | 		return sdkConfig;
29 | 	}
30 | 	
31 | 	@Bean
32 | 	public OAuthTokenCredential authTokenCredential(){
33 | 		return new OAuthTokenCredential(clientId, clientSecret, paypalSdkConfig());
34 | 	}
35 | 	
36 | 	@Bean
37 | 	public APIContext apiContext() throws PayPalRESTException{
38 | 		APIContext apiContext = new APIContext(authTokenCredential().getAccessToken());
39 | 		apiContext.setConfigurationMap(paypalSdkConfig());
40 | 		return apiContext;
41 | 	}
42 | }
43 | 


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/src/main/java/com/masasdani/paypal/config/PaypalPaymentIntent.java:
--------------------------------------------------------------------------------
1 | package com.masasdani.paypal.config;
2 | 
3 | public enum PaypalPaymentIntent {
4 | 
5 | 	sale, authorize, order
6 | 	
7 | }
8 | 


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/src/main/java/com/masasdani/paypal/config/PaypalPaymentMethod.java:
--------------------------------------------------------------------------------
1 | package com.masasdani.paypal.config;
2 | 
3 | public enum PaypalPaymentMethod {
4 | 
5 | 	credit_card, paypal
6 | 	
7 | }
8 | 


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/src/main/java/com/masasdani/paypal/controller/PaymentController.java:
--------------------------------------------------------------------------------
 1 | package com.masasdani.paypal.controller;
 2 | 
 3 | import javax.servlet.http.HttpServletRequest;
 4 | 
 5 | import org.slf4j.Logger;
 6 | import org.slf4j.LoggerFactory;
 7 | import org.springframework.beans.factory.annotation.Autowired;
 8 | import org.springframework.stereotype.Controller;
 9 | import org.springframework.web.bind.annotation.RequestMapping;
10 | import org.springframework.web.bind.annotation.RequestMethod;
11 | import org.springframework.web.bind.annotation.RequestParam;
12 | 
13 | import com.masasdani.paypal.config.PaypalPaymentIntent;
14 | import com.masasdani.paypal.config.PaypalPaymentMethod;
15 | import com.masasdani.paypal.service.PaypalService;
16 | import com.masasdani.paypal.util.URLUtils;
17 | import com.paypal.api.payments.Links;
18 | import com.paypal.api.payments.Payment;
19 | import com.paypal.base.rest.PayPalRESTException;
20 | 
21 | @Controller
22 | @RequestMapping("/")
23 | public class PaymentController {
24 | 	
25 | 	public static final String PAYPAL_SUCCESS_URL = "pay/success";
26 | 	public static final String PAYPAL_CANCEL_URL = "pay/cancel";
27 | 	
28 | 	private Logger log = LoggerFactory.getLogger(getClass());
29 | 	
30 | 	@Autowired
31 | 	private PaypalService paypalService;
32 | 	
33 | 	@RequestMapping(method = RequestMethod.GET)
34 | 	public String index(){
35 | 		return "index";
36 | 	}
37 | 	
38 | 	@RequestMapping(method = RequestMethod.POST, value = "pay")
39 | 	public String pay(HttpServletRequest request){
40 | 		String cancelUrl = URLUtils.getBaseURl(request) + "/" + PAYPAL_CANCEL_URL;
41 | 		String successUrl = URLUtils.getBaseURl(request) + "/" + PAYPAL_SUCCESS_URL;
42 | 		try {
43 | 			Payment payment = paypalService.createPayment(
44 | 					4.00, 
45 | 					"USD", 
46 | 					PaypalPaymentMethod.paypal, 
47 | 					PaypalPaymentIntent.sale,
48 | 					"payment description", 
49 | 					cancelUrl, 
50 | 					successUrl);
51 | 			for(Links links : payment.getLinks()){
52 | 				if(links.getRel().equals("approval_url")){
53 | 					return "redirect:" + links.getHref();
54 | 				}
55 | 			}
56 | 		} catch (PayPalRESTException e) {
57 | 			log.error(e.getMessage());
58 | 		}
59 | 		return "redirect:/";
60 | 	}
61 | 
62 | 	@RequestMapping(method = RequestMethod.GET, value = PAYPAL_CANCEL_URL)
63 | 	public String cancelPay(){
64 | 		return "cancel";
65 | 	}
66 | 
67 | 	@RequestMapping(method = RequestMethod.GET, value = PAYPAL_SUCCESS_URL)
68 | 	public String successPay(@RequestParam("paymentId") String paymentId, @RequestParam("PayerID") String payerId){
69 | 		try {
70 | 			Payment payment = paypalService.executePayment(paymentId, payerId);
71 | 			if(payment.getState().equals("approved")){
72 | 				return "success";
73 | 			}
74 | 		} catch (PayPalRESTException e) {
75 | 			log.error(e.getMessage());
76 | 		}
77 | 		return "redirect:/";
78 | 	}
79 | 	
80 | }
81 | 


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/src/main/java/com/masasdani/paypal/service/PaypalService.java:
--------------------------------------------------------------------------------
 1 | package com.masasdani.paypal.service;
 2 | 
 3 | import java.math.BigDecimal;
 4 | import java.math.RoundingMode;
 5 | import java.util.ArrayList;
 6 | import java.util.List;
 7 | 
 8 | import org.springframework.beans.factory.annotation.Autowired;
 9 | import org.springframework.stereotype.Service;
10 | 
11 | import com.masasdani.paypal.config.PaypalPaymentIntent;
12 | import com.masasdani.paypal.config.PaypalPaymentMethod;
13 | import com.paypal.api.payments.Amount;
14 | import com.paypal.api.payments.Payer;
15 | import com.paypal.api.payments.Payment;
16 | import com.paypal.api.payments.PaymentExecution;
17 | import com.paypal.api.payments.RedirectUrls;
18 | import com.paypal.api.payments.Transaction;
19 | import com.paypal.base.rest.APIContext;
20 | import com.paypal.base.rest.PayPalRESTException;
21 | 
22 | @Service
23 | public class PaypalService {
24 | 
25 | 	@Autowired
26 | 	private APIContext apiContext;
27 | 	
28 | 	public Payment createPayment(
29 | 			Double total, 
30 | 			String currency, 
31 | 			PaypalPaymentMethod method, 
32 | 			PaypalPaymentIntent intent, 
33 | 			String description, 
34 | 			String cancelUrl, 
35 | 			String successUrl) throws PayPalRESTException{
36 | 		Amount amount = new Amount();
37 | 		amount.setCurrency(currency);
38 | 		total = new BigDecimal(total).setScale(2, RoundingMode.HALF_UP).doubleValue();
39 | 		amount.setTotal(String.format("%.2f", total));
40 | 
41 | 		Transaction transaction = new Transaction();
42 | 		transaction.setDescription(description);
43 | 		transaction.setAmount(amount);
44 | 
45 | 		List<Transaction> transactions = new ArrayList<>();
46 | 		transactions.add(transaction);
47 | 
48 | 		Payer payer = new Payer();
49 | 		payer.setPaymentMethod(method.toString());
50 | 
51 | 		Payment payment = new Payment();
52 | 		payment.setIntent(intent.toString());
53 | 		payment.setPayer(payer);
54 | 		payment.setTransactions(transactions);
55 | 		RedirectUrls redirectUrls = new RedirectUrls();
56 | 		redirectUrls.setCancelUrl(cancelUrl);
57 | 		redirectUrls.setReturnUrl(successUrl);
58 | 		payment.setRedirectUrls(redirectUrls);
59 | 
60 | 		return payment.create(apiContext);
61 | 	}
62 | 	
63 | 	public Payment executePayment(String paymentId, String payerId) throws PayPalRESTException{
64 | 		Payment payment = new Payment();
65 | 		payment.setId(paymentId);
66 | 		PaymentExecution paymentExecute = new PaymentExecution();
67 | 		paymentExecute.setPayerId(payerId);
68 | 		return payment.execute(apiContext, paymentExecute);
69 | 	}
70 | }
71 | 


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/src/main/java/com/masasdani/paypal/util/URLUtils.java:
--------------------------------------------------------------------------------
 1 | package com.masasdani.paypal.util;
 2 | 
 3 | import javax.servlet.http.HttpServletRequest;
 4 | 
 5 | public class URLUtils {
 6 | 
 7 | 	public static String getBaseURl(HttpServletRequest request) {
 8 | 	    String scheme = request.getScheme();
 9 | 	    String serverName = request.getServerName();
10 | 	    int serverPort = request.getServerPort();
11 | 	    String contextPath = request.getContextPath();
12 | 	    StringBuffer url =  new StringBuffer();
13 | 	    url.append(scheme).append("://").append(serverName);
14 | 	    if ((serverPort != 80) && (serverPort != 443)) {
15 | 	        url.append(":").append(serverPort);
16 | 	    }
17 | 	    url.append(contextPath);
18 | 	    if(url.toString().endsWith("/")){
19 | 	    	url.append("/");
20 | 	    }
21 | 	    return url.toString();
22 | 	}
23 | 	
24 | }
25 | 


--------------------------------------------------------------------------------
/src/main/resources/application.properties:
--------------------------------------------------------------------------------
1 | server.port: 8080
2 | spring.thymeleaf.cache=false
3 | 
4 | paypal.mode=sandbox
5 | paypal.client.app=xxxxxxxxxxxxxxxxxxYOUR_CLIENT_IDxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
6 | paypal.client.secret=xxxxxxxxxxxxxxxxxxYOUR_CLIENT_SECRETxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


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/src/main/resources/templates/cancel.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html>
 3 | <head>
 4 | <meta charset="UTF-8" />
 5 | <title>Insert title here</title>
 6 | </head>
 7 | <body>
 8 | 	<h1>Canceled by user</h1>
 9 | </body>
10 | </html>


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/src/main/resources/templates/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html>
 3 | <head>
 4 | <meta charset="UTF-8" />
 5 | <title>Insert title here</title>
 6 | </head>
 7 | <body>
 8 | <form method="post" th:action="@{/pay}">
 9 | 	<button type="submit"> Process Payment </button>
10 | </form>
11 | </body>
12 | </html>


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/src/main/resources/templates/success.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html>
 3 | <head>
 4 | <meta charset="UTF-8" />
 5 | <title>Insert title here</title>
 6 | </head>
 7 | <body>
 8 | 	<h1>Payment Success</h1>
 9 | </body>
10 | </html>


--------------------------------------------------------------------------------