├── README.md
├── pom.xml
└── src
    ├── main
        ├── java
        │   └── com
        │   │   └── javatechie
        │   │       └── spring
        │   │           └── paytm
        │   │               └── api
        │   │                   ├── PaymentController.java
        │   │                   ├── PaytmDetails.java
        │   │                   └── SpringPaymentPaytmApplication.java
        └── resources
        │   ├── META-INF
        │       └── additional-spring-configuration-metadata.json
        │   ├── application.properties
        │   ├── application.yml
        │   ├── static
        │       └── style.css
        │   └── templates
        │       ├── home.html
        │       └── report.html
    └── test
        └── java
            └── com
                └── javatechie
                    └── spring
                        └── paytm
                            └── api
                                └── SpringPaymentPaytmApplicationTests.java


/README.md:
--------------------------------------------------------------------------------
1 | # spring-boot-paytm-integration
2 | How to do payment integration using paytm with Spring Boot
3 | 
4 | # Testing Integration URL 
5 | https://developer.paytm.com/docs/testing-integration/
6 | 


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/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
 3 | 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 | 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 5 | 	<modelVersion>4.0.0</modelVersion>
 6 | 	<parent>
 7 | 		<groupId>org.springframework.boot</groupId>
 8 | 		<artifactId>spring-boot-starter-parent</artifactId>
 9 | 		<version>2.1.4.RELEASE</version>
10 | 		<relativePath /> <!-- lookup parent from repository -->
11 | 	</parent>
12 | 	<groupId>com.javatechie</groupId>
13 | 	<artifactId>spring-payment-paytm</artifactId>
14 | 	<version>0.0.1-SNAPSHOT</version>
15 | 	<name>spring-payment-paytm</name>
16 | 	<description>payment integration with paytm</description>
17 | 
18 | 	<properties>
19 | 		<java.version>1.8</java.version>
20 | 	</properties>
21 | 
22 | 	<dependencies>
23 | 		<dependency>
24 | 			<groupId>org.springframework.boot</groupId>
25 | 			<artifactId>spring-boot-starter-web</artifactId>
26 | 		</dependency>
27 | 		<dependency>
28 | 			<groupId>org.springframework.boot</groupId>
29 | 			<artifactId>spring-boot-starter-thymeleaf</artifactId>
30 | 		</dependency>
31 | 		<dependency>
32 | 			<groupId>org.springframework.boot</groupId>
33 | 			<artifactId>spring-boot-devtools</artifactId>
34 | 			<scope>runtime</scope>
35 | 			<optional>true</optional>
36 | 		</dependency>
37 | 		<dependency>
38 | 			<groupId>org.projectlombok</groupId>
39 | 			<artifactId>lombok</artifactId>
40 | 			<optional>true</optional>
41 | 		</dependency>
42 | 		<dependency>
43 | 			<groupId>org.springframework.boot</groupId>
44 | 			<artifactId>spring-boot-starter-test</artifactId>
45 | 			<scope>test</scope>
46 | 		</dependency>
47 | 		<dependency>
48 | 			<groupId>org.springframework.boot</groupId>
49 | 			<artifactId>spring-boot-configuration-processor</artifactId>
50 | 			<optional>true</optional>
51 | 		</dependency>
52 | 	</dependencies>
53 | 
54 | 	<build>
55 | 		<plugins>
56 | 			<plugin>
57 | 				<groupId>org.springframework.boot</groupId>
58 | 				<artifactId>spring-boot-maven-plugin</artifactId>
59 | 			</plugin>
60 | 		</plugins>
61 | 	</build>
62 | 
63 | </project>
64 | 


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/src/main/java/com/javatechie/spring/paytm/api/PaymentController.java:
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 1 | package com.javatechie.spring.paytm.api;
 2 | 
 3 | import java.util.Map;
 4 | import java.util.TreeMap;
 5 | 
 6 | import javax.servlet.http.HttpServletRequest;
 7 | 
 8 | import org.springframework.beans.factory.annotation.Autowired;
 9 | import org.springframework.core.env.Environment;
10 | import org.springframework.stereotype.Controller;
11 | import org.springframework.ui.Model;
12 | import org.springframework.web.bind.annotation.GetMapping;
13 | import org.springframework.web.bind.annotation.PostMapping;
14 | import org.springframework.web.bind.annotation.RequestParam;
15 | import org.springframework.web.servlet.ModelAndView;
16 | 
17 | import com.paytm.pg.merchant.CheckSumServiceHelper;
18 | 
19 | @Controller
20 | public class PaymentController {
21 | 	
22 | 	@Autowired
23 | 	private PaytmDetails paytmDetails;
24 | 	@Autowired
25 | 	private Environment env;
26 | 	
27 | 	@GetMapping("/")
28 | 	public String home() {
29 | 		return "home";
30 | 	}
31 | 
32 | 	 @PostMapping(value = "/pgredirect")
33 | 	    public ModelAndView getRedirect(@RequestParam(name = "CUST_ID") String customerId,
34 | 	                                    @RequestParam(name = "TXN_AMOUNT") String transactionAmount,
35 | 	                                    @RequestParam(name = "ORDER_ID") String orderId) throws Exception {
36 | 
37 | 	        ModelAndView modelAndView = new ModelAndView("redirect:" + paytmDetails.getPaytmUrl());
38 | 	        TreeMap<String, String> parameters = new TreeMap<>();
39 | 	        paytmDetails.getDetails().forEach((k, v) -> parameters.put(k, v));
40 | 	        parameters.put("MOBILE_NO", env.getProperty("paytm.mobile"));
41 | 	        parameters.put("EMAIL", env.getProperty("paytm.email"));
42 | 	        parameters.put("ORDER_ID", orderId);
43 | 	        parameters.put("TXN_AMOUNT", transactionAmount);
44 | 	        parameters.put("CUST_ID", customerId);
45 | 	        String checkSum = getCheckSum(parameters);
46 | 	        parameters.put("CHECKSUMHASH", checkSum);
47 | 	        modelAndView.addAllObjects(parameters);
48 | 	        return modelAndView;
49 | 	    }
50 | 	 
51 | 	 
52 | 	 @PostMapping(value = "/pgresponse")
53 | 	    public String getResponseRedirect(HttpServletRequest request, Model model) {
54 | 
55 | 	        Map<String, String[]> mapData = request.getParameterMap();
56 | 	        TreeMap<String, String> parameters = new TreeMap<String, String>();
57 | 	        mapData.forEach((key, val) -> parameters.put(key, val[0]));
58 | 	        String paytmChecksum = "";
59 | 	        if (mapData.containsKey("CHECKSUMHASH")) {
60 | 	            paytmChecksum = mapData.get("CHECKSUMHASH")[0];
61 | 	        }
62 | 	        String result;
63 | 
64 | 	        boolean isValideChecksum = false;
65 | 	        System.out.println("RESULT : "+parameters.toString());
66 | 	        try {
67 | 	            isValideChecksum = validateCheckSum(parameters, paytmChecksum);
68 | 	            if (isValideChecksum && parameters.containsKey("RESPCODE")) {
69 | 	                if (parameters.get("RESPCODE").equals("01")) {
70 | 	                    result = "Payment Successful";
71 | 	                } else {
72 | 	                    result = "Payment Failed";
73 | 	                }
74 | 	            } else {
75 | 	                result = "Checksum mismatched";
76 | 	            }
77 | 	        } catch (Exception e) {
78 | 	            result = e.toString();
79 | 	        }
80 | 	        model.addAttribute("result",result);
81 | 	        parameters.remove("CHECKSUMHASH");
82 | 	        model.addAttribute("parameters",parameters);
83 | 	        return "report";
84 | 	    }
85 | 
86 | 	    private boolean validateCheckSum(TreeMap<String, String> parameters, String paytmChecksum) throws Exception {
87 | 	        return CheckSumServiceHelper.getCheckSumServiceHelper().verifycheckSum(paytmDetails.getMerchantKey(),
88 | 	                parameters, paytmChecksum);
89 | 	    }
90 | 
91 | 
92 | 	private String getCheckSum(TreeMap<String, String> parameters) throws Exception {
93 | 		return CheckSumServiceHelper.getCheckSumServiceHelper().genrateCheckSum(paytmDetails.getMerchantKey(), parameters);
94 | 	}
95 | 	
96 | 	
97 | 	
98 | }
99 | 


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/src/main/java/com/javatechie/spring/paytm/api/PaytmDetails.java:
--------------------------------------------------------------------------------
 1 | package com.javatechie.spring.paytm.api;
 2 | 
 3 | import java.util.Map;
 4 | 
 5 | import org.springframework.boot.context.properties.ConfigurationProperties;
 6 | import org.springframework.stereotype.Component;
 7 | 
 8 | import lombok.AllArgsConstructor;
 9 | import lombok.Data;
10 | import lombok.NoArgsConstructor;
11 | import lombok.ToString;
12 | 
13 | @Data
14 | @AllArgsConstructor
15 | @NoArgsConstructor
16 | @ToString
17 | @Component
18 | @ConfigurationProperties("paytm.payment.sandbox")
19 | 
20 | public class PaytmDetails {
21 | 	
22 | 	private String merchantId;
23 | 
24 |     private String merchantKey;
25 | 
26 |     private String channelId;
27 | 
28 |     private String website;
29 | 
30 |     private String industryTypeId;
31 | 
32 |     private String paytmUrl;
33 | 
34 |     private Map<String, String> details;
35 | 
36 | }
37 | 


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/src/main/java/com/javatechie/spring/paytm/api/SpringPaymentPaytmApplication.java:
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 1 | package com.javatechie.spring.paytm.api;
 2 | 
 3 | import org.springframework.boot.SpringApplication;
 4 | import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 | 
 6 | @SpringBootApplication
 7 | public class SpringPaymentPaytmApplication {
 8 | 
 9 | 	public static void main(String[] args) {
10 | 		SpringApplication.run(SpringPaymentPaytmApplication.class, args);
11 | 	}
12 | 
13 | }
14 | 


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/src/main/resources/META-INF/additional-spring-configuration-metadata.json:
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 1 | {"properties": [
 2 |   {
 3 |     "name": "paytm.payment.sandbox.merchant-id",
 4 |     "type": "java.lang.String",
 5 |     "description": "A description for 'paytm.payment.sandbox.merchant-id'"
 6 |   },
 7 |   {
 8 |     "name": "paytm.payment.sandbox.callback-url",
 9 |     "type": "java.lang.String",
10 |     "description": "A description for 'paytm.payment.sandbox.callback-url'"
11 |   }
12 | ]}


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/src/main/resources/application.properties:
--------------------------------------------------------------------------------
1 | server.port=9090
2 | paytm.email=Enter your Email id
3 | paytm.mobile=Enter your mobile number
4 | 


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/src/main/resources/application.yml:
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 1 | paytm.payment:
 2 |   sandbox:
 3 |     merchantId: {generate your own merchantId}
 4 |     merchantKey: {generate your merchantKey}
 5 |     channelId: WEB
 6 |     website: WEBSTAGING
 7 |     industryTypeId: Retail
 8 |     paytmUrl:  https://securegw-stage.paytm.in/order/process
 9 |     callbackUrl: http://localhost:9090/pgresponse
10 |     details:
11 |       MID: ${paytm.payment.sandbox.merchantid}
12 |       CHANNEL_ID: ${paytm.payment.sandbox.channelid}
13 |       INDUSTRY_TYPE_ID: ${paytm.payment.sandbox.industrytypeid}
14 |       WEBSITE: ${paytm.payment.sandbox.website}
15 |       CALLBACK_URL: ${paytm.payment.sandbox.callbackUrl}
16 | 


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/src/main/resources/static/style.css:
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  1 | .register{
  2 |     background: -webkit-linear-gradient(left, #3931af, #00c6ff);
  3 |     margin-top: 3%;
  4 |     padding: 3%;
  5 | }
  6 | .register-left{
  7 |     text-align: center;
  8 |     color: #fff;
  9 |     margin-top: 4%;
 10 | }
 11 | .register-left input{
 12 |     border: none;
 13 |     border-radius: 1.5rem;
 14 |     padding: 2%;
 15 |     width: 60%;
 16 |     background: #f8f9fa;
 17 |     font-weight: bold;
 18 |     color: #383d41;
 19 |     margin-top: 30%;
 20 |     margin-bottom: 3%;
 21 |     cursor: pointer;
 22 | }
 23 | .register-right{
 24 |     background: #f8f9fa;
 25 |     border-top-left-radius: 10% 50%;
 26 |     border-bottom-left-radius: 10% 50%;
 27 | }
 28 | .register-left img{
 29 |     margin-top: 15%;
 30 |     margin-bottom: 5%;
 31 |     width: 25%;
 32 |     -webkit-animation: mover 2s infinite  alternate;
 33 |     animation: mover 1s infinite  alternate;
 34 | }
 35 | @-webkit-keyframes mover {
 36 |     0% { transform: translateY(0); }
 37 |     100% { transform: translateY(-20px); }
 38 | }
 39 | @keyframes mover {
 40 |     0% { transform: translateY(0); }
 41 |     100% { transform: translateY(-20px); }
 42 | }
 43 | .register-left p{
 44 |     font-weight: lighter;
 45 |     padding: 12%;
 46 |     margin-top: -9%;
 47 | }
 48 | .register .register-form{
 49 |     padding: 10%;
 50 |     margin-top: 10%;
 51 | }
 52 | .btnRegister {
 53 |     border: none;
 54 |     border-radius: 1.5rem;
 55 |     background: #0062cc;
 56 |     color: #fff;
 57 |     font-weight: 600;
 58 |     width: 55%;
 59 |     cursor: pointer;
 60 |     padding: 1%;
 61 |     font-size: xx-large;
 62 |  /*   margin-top: 3px;*/
 63 |  margin:auto;
 64 |   display:block
 65 | }
 66 | .register .nav-tabs{
 67 |     margin-top: 3%;
 68 |     border: none;
 69 |     background: #0062cc;
 70 |     border-radius: 1.5rem;
 71 |     width: 28%;
 72 |     float: right;
 73 | }
 74 | .register .nav-tabs .nav-link{
 75 |     padding: 2%;
 76 |     height: 34px;
 77 |     font-weight: 600;
 78 |     color: #fff;
 79 |     border-top-right-radius: 1.5rem;
 80 |     border-bottom-right-radius: 1.5rem;
 81 | }
 82 | .register .nav-tabs .nav-link:hover{
 83 |     border: none;
 84 | }
 85 | .register .nav-tabs .nav-link.active{
 86 |     width: 100px;
 87 |     color: #0062cc;
 88 |     border: 2px solid #0062cc;
 89 |     border-top-left-radius: 1.5rem;
 90 |     border-bottom-left-radius: 1.5rem;
 91 | }
 92 | 
 93 | .register-heading {
 94 |     /* text-align: center; */
 95 |     /* margin-top: 8%; */
 96 |     margin-bottom: -15%;
 97 |     color: #495057;
 98 |     float: left;
 99 |     /* margin-left: 0px; */
100 |     padding-left: 75px;
101 | }


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/src/main/resources/templates/home.html:
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 1 | <!DOCTYPE html>
 2 | <html lang="en" xmlns:th="http://www.thymeleaf.org">
 3 | <head>
 4 |     <meta charset="UTF-8"/>
 5 |     <title>Title</title>
 6 |     <link rel="stylesheet" th:href="@{/style.css}"/>
 7 |     <link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"/>
 8 |     <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
 9 |     <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
10 | </head>
11 | <body>
12 | <form method="post" action="/pgredirect">
13 |     <div class="container register">
14 |         <div class="row">
15 |             <div class="col-md-3 register-left">
16 |                 <img src="https://image.ibb.co/n7oTvU/logo_white.png" alt=""/>
17 |                 <h3>Welcome</h3>
18 |                 <p>You are 30 seconds away from earning your own money!</p>
19 |             </div>
20 |             <div class="col-md-9 register-right">
21 |                 <div class="tab-content" id="myTabContent">
22 |                     <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">
23 |                         <h3 class="register-heading">Welcome to Paytm Payment</h3>
24 |                         <div class="row register-form">
25 |                             <div class="col-md-10">
26 |                                 <div class="form-group">
27 |                                     <input id="ORDER_ID" tabindex="1" maxlength="20" size="20"
28 |                                            name="ORDER_ID" autocomplete="off" class="form-control" >
29 |                                 </div>
30 |                                 <div class="form-group">
31 |                                     <input type="text" class="form-control" placeholder="Customer ID" value=""
32 |                                            name="CUST_ID"/>
33 |                                 </div>
34 |                                 <div class="form-group">
35 |                                     <input type="text" class="form-control" placeholder="INDUSTRY_TYPE_ID" value=""
36 |                                            name="INDUSTRY_TYPE_ID"/>
37 |                                 </div>
38 |                                 <div class="form-group">
39 |                                     <input type="text" class="form-control" placeholder="Channel" value=""
40 |                                            name="CHANNEL_ID"/>
41 |                                 </div>
42 |                                 <div class="form-group">
43 |                                     <input type="text" class="form-control" placeholder="Amount" value=""
44 |                                            name="TXN_AMOUNT"/>
45 |                                 </div>
46 |                                 <!--  <input type="submit" class="btnRegister"  value="Pay with Paytm"/>   -->
47 |                                 <button type="submit" class="btnRegister" style="align : center">Pay with Paytm</button>
48 |                             </div>
49 |                         </div>
50 |                     </div>
51 |                 </div>
52 | 
53 |             </div>
54 |         </div>
55 |     </div>
56 | </form>
57 | </body>
58 | </html>


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/src/main/resources/templates/report.html:
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 1 | <!DOCTYPE html>
 2 | <html lang="en" xmlns:th="http://www.thymeleaf.org">
 3 | 
 4 | <head>
 5 |     <meta charset="UTF-8"/>
 6 |     <title>Payment Report</title>
 7 |     <link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"/>
 8 |     <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
 9 |     <script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
10 | </head>
11 | <body>
12 | <div class="container">
13 |     <div class="row">
14 |         <div class="well col-xs-10 col-sm-10 col-md-6 col-xs-offset-1 col-sm-offset-1 col-md-offset-3">
15 |             <div class="row">
16 |                 <div class="col-xs-6 col-sm-6 col-md-6">
17 |                     <strong th:text="${result}"></strong>
18 |                     <br>
19 |                 </div>
20 |                 <div class="col-xs-6 col-sm-6 col-md-6 text-right">
21 |                     <p>
22 |                         <em>Receipt #: 34522677W</em>
23 |                     </p>
24 |                 </div>
25 |             </div>
26 |             <div class="row">
27 |                 <div class="text-center">
28 |                     <h1>Receipt</h1>
29 |                 </div>
30 |                
31 |                 <table class="table table-hover">
32 |                     <thead>
33 |                     <tr>
34 |                         <th>Components</th>
35 |                     </tr>
36 |                     </thead>
37 |                     <tbody>
38 | 
39 |                     <tr th:each="entry : ${parameters}">
40 | 
41 |                         <td th:text="${entry.key} + '  : -  ' + ${entry.value}"></td>
42 |                       
43 |                     </tr>
44 |                     </tbody>
45 |                 </table>
46 |             </div>
47 |         </div>
48 |     </div>
49 | </div>
50 | </body>
51 | </html>


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/src/test/java/com/javatechie/spring/paytm/api/SpringPaymentPaytmApplicationTests.java:
--------------------------------------------------------------------------------
 1 | package com.javatechie.spring.paytm.api;
 2 | 
 3 | import org.junit.Test;
 4 | import org.junit.runner.RunWith;
 5 | import org.springframework.boot.test.context.SpringBootTest;
 6 | import org.springframework.test.context.junit4.SpringRunner;
 7 | 
 8 | @RunWith(SpringRunner.class)
 9 | @SpringBootTest
10 | public class SpringPaymentPaytmApplicationTests {
11 | 
12 | 	@Test
13 | 	public void contextLoads() {
14 | 	}
15 | 
16 | }
17 | 


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