Accepting online payments is a key functionality in a website, especially on an e-commerce website. Paytm Payment Gateway is preferred by thousands of businesses, including some of India’s leading unicorns. We are known for offering quick integration and safe tailored checkout solutions that enhance the end users’ payment experience.
Paytm Payment Gateway offers robust APIs that allow businesses to easily integrate our payment solutions into their websites. We also let businesses accept online payments via a wide range of payment sources, thereby giving their customers the freedom to choose their preferred payment option.
In this blog, we will explain to you the step-by-step process of integrating Paytm Payment Gateway in your Java-based website. But first things first.
What is Java?
Java is a cross-platform object-oriented programming language. The language was first launched by Sun Microsystems in 1995. Since then, the language is widely used for developing diverse applications, including gaming apps, audio & visual applications, social media applications, and much more.
Payment Gateway Integration in Java-Based Websites: Server SDK Integration
Being a popular programming language, many online businesses use the Java platform to develop their websites. To add the payments functionality Paytm offers a robust server-side kit specifically designed for Java-based websites for major APIs required to integrate Paytm Payment Gateway.
Our kit allows easy integration of Paytm Payment Gateway. With a couple of steps, online businesses can enable customers to pay via 100+ payment options, including Paytm Wallet, Paytm Postpaid, fixed deposit, credit card, debit cards, EMI, netbanking, UPI, and more.
Our kit also enables online businesses to generate the checksum required for authentication. Moreover, they also get access to the following APIs:
- Initiate Transaction API: Returns the transaction token used in other native APIs
- Transaction Status API: Returns the status of a particular transaction
- Refund API: Initiates complete or partial refund against a specific transaction
- Refund Status API: Gets the details of the refund transaction
Steps Involved in Payment Gateway Integration in Java-Based Websites
Step 1: What are the pre-requisites before you get to the actual integration process?
- Make sure your website is built on either Java 1.7 or any of the later versions
- You should have the API Keys with you. If you don’t have the API keys, you can check out the following guides to generate the same:
Step 2: Installing the SDK with Maven
- Add the maven repository to your project’s POM using the code below:
- Add the maven dependency to your project’s POM using the code below:
- Use the code below to build and install locally:
Step 3: Implement the SDK Code
For initialization:
You need to initialize the mandatory parameters such as mid, environment, website, key, etc. so that these parameters can call the SDK methods to call our payment gateway’s APIs directly. You can do this by using the below code:
For payments:
- ‘Create Transaction Token’ – For creating a transaction token, you can implement the code given below:
- ‘GetPaymentStatus’ – For creating the payment status functionality, you can use the code given below:
For refunds:
- ‘InitiateRefund’ – For adding the functionality of initiating refunds, implement the code given below:
- ‘GetRefundStatus’ – For adding the functionality of getting refund status, implement the code below:
SDK method references:
You can refer to the below SDK method references:
| CLASS | METHODS | HTTP REQUEST | DESCRIPTION |
| Payments | createTxnToken | POST/theia/api/v1/initiateTransaction | Returns a token that is to be used in future frontend payment calls |
| getPaymentStatus | POST/merchant-status/api/v1/getPaymentStatus | Returns the status of payments | |
| Refunds | initiateRefund | POST/refund/api/v1/async/refund | Initiates customer refunds |
| getRefundStatus | POST/refund/api/v1/refundStatus | Returns the status of refunds |
On a concluding note
In addition to being easy-to-integrate with ready to use JS Code repository, Paytm Payment Gateway is the only payment gateway that charges 0% MDR on UPI and RuPay debit cards transactions. Paytm PG is known for delivering industry-high success rates and T+1 settlements. It is also capable of powering 2,500 transactions per second.
With so much to offer, Paytm Payment Gateway is a great choice for websites built on the Java platform. So, wait no more.
