A Comprehensive Guide To Payment Gateway Integration


22 Jan, 2024


What is a payment gateway? What is an eCommerce payment gateway? How does payment gateway integration work for ecommerce? Have you been wanting to enhance your knowledge about eCommerce payment gateway? Well, if you’re seeking answers to these questions, then you have come to the right place!

One of the primary reasons online shopping has grown in popularity is its convenience and security in terms of payment. With payment gateways, the entire online shopping process is seamless and user-friendly. With payment gateway integration, all kinds of transaction types are accepted, and fantastic deals, cashback, and other similar features have made shopping a breeze. But even if you plan to launch an eCommerce website, you can’t move forward without understanding a payment gateway.

You can’t function without a payment gateway when you run an eCommerce website. It is a connection point between e-commerce sites and payment processors and is essential for safe and secure payment authorization. This blog is a complete guide on “What Is A Payment Gateway” and how to integrate it.

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What is a Payment Gateway?

What is a Payment Gateway?

A payment gateway is an online payment service designed to make and receive payments when coupled with an e-commerce platform. To make payments, the consumer must fill in some information, such as credit/debit card number, expiration date, and CVV. The consumer then makes a payment, which is transferred from the buyer’s account to the merchant’s.

With payment gateway integration, the primary function is to approve the transaction process between the merchant and the client. It’s integral to online transactions because it authorizes transactions between merchants and customers. It aids the e-commerce platform’s existence by allowing customers to make payments more easily.

Furthermore, it contributes to the e-commerce platform, developing a reputation for facilitating speedy and safe payments and great convenience and success. 

Once you have the fundamentals of “What Is A Payment Gateway” down, you can look for a payment gateway service provider that best fits your business needs.

A payment service provider authorized by a bank can provide a payment gateway service. Credit cards are processed through a payment gateway in both online and offline establishments. It sends and receives critical data between websites/mobile devices and payment processors/banks. So, payment gateway integration is the perfect tool to handle your online financial operations, enhancing user experience.

How Do You Choose The Right Payment Gateway For Your E-Commerce Website?

 Right Payment Gateway

Every business that collects online payments or takes credit/debit card payments requires an online payment gateway. It’s critical to research extensively and choose the best eCommerce payment gateway per your needs. Here are vital factors to consider when looking for a website payment gateway integration:

  • User experience: The payment gateway integration should offer one-of-a-kind and quick payment processing and customization options. It should be mobile-friendly, secure, support various transaction types, and be easy to use, allowing customers a smooth purchasing experience.
  • Payment Options: Last but not least, a payment gateway should provide a variety of payment methods. A consumer should be able to use whichever payment method they prefer, whether credit/debit cards, net banking, mobile wallets, UPI, or something else.
  • Security: Any firm that accepts payments online must prioritize secure transactions. Customers must have faith in the transaction and be confident that their personal and financial information will be kept safe while transacting online. When opting for payment gateway integration, ensure that the information a customer enters is secure. PCI compliance is required for such a service.
  • Payment Acceptance Across Borders: We live and work in a global market. An eCommerce payment gateway should support multi-currency transactions.
  • Quick onboarding: Online transactions are a fundamental demand in today’s society, so a payment gateway should enable the quickest merchant onboarding possible. The costs and rates for processing and setup should be within the merchant’s budget.

      Payment Gateways Integration – How Does It Function?

      A payment gateway or eCommerce payment gateway can be considered a virtual link between a customer and an online business or eCommerce store. It’s the last step in the selling process. Payment gateways encrypt the data they transfer for security reasons. 

      How Payment Gateways Work

      Now that you know what is a payment gateway let’s uncover how payment gateway integration works.

      Payment gateways perform some of the following actions:

      1. When customers place an order, they enter their credit card/debit card/UPI information and click “pay now” or something similar.
      2. The customer’s web browser uses the Secure Socket Layer (SSL) to encrypt the credit card information for security reasons.
      3. Using SSL, the merchant sends the information to the payment gateway
      4. The information is forwarded to the relevant payment processor by the payment gateway.
      5. The payment processor sends the data to the appropriate credit card association.
      6. The credit card association assesses the request and responds to the payment processor. 
      7. The payment processor sends the response to the payment gateway.
      8. The response is forwarded to the customer and the business through the payment gateway. The customer and the business know whether or not the transaction is approved.
      9. The merchant submits all approvals to the credit card company in the batch form at a later time.
      10. All accepted credit card transactions are sent to the merchant by the credit card company.

      How do you integrate a custom payment gateway into a website or app?

      Payment Gateway Integration connects your store or business to gateway services via an application programming interface (API). Providers, sometimes known as non-hosted payment gateways, accept direct payments through your website. Customers will have a nice payment experience without being redirected outside your store. These kinds of portals are also mobile-friendly. The fact that your website is accountable for a large percentage of the security is a disadvantage. You may be subjected to a security audit if your website is hacked. Your store architecture may need to be tweaked to support certain of the gateway provider’s functionalities.

      The specific methods for integrating a payment gateway will vary depending on the gateway selected. There are, however, a few standard steps. For example, if you use a hosted payment gateway, you must connect your website to the gateway and obtain an SSL certificate. You’ll also need the credentials for the gateway, which include the merchant’s ID, MWS access key, and secret key. To make the payment process seem the way you want it to, you should be able to perform a lot of customizing.

      If you’re going to use an integrated payment gateway, the first thing you’ll want to do is double-check your security precautions. However, you should be able to accomplish this by utilizing some of the numerous APIs and modules available. Otherwise, custom payment gateway development may be required to incorporate the payment gateway into your website. You should also ensure that your payment gateway accepts several payment methods and that mobile phone customers are catered to.

      Best Ecommerce Payment Gateway



      For eCommerce stores, PayPal is the most often utilized payment gateway. It is a payment gateway that is approved in over 203 countries. It accepts Visa, Mastercard, and other major credit cards.

      Apple Pay

      Apple Pay

      Apple Pay is one of the most popular contactless payment systems available. As a result, you can utilize it for your dropshipping store. Customers may pay with only a click of a button with Apple Pay. Visa, Union Pay, QUICPay, Master Card, and American Express are all accepted by the contactless payment gateway.



      Stripe is a payment gateway founded in the United States, available in over 25 countries. All major credit cards are accepted. It also has WooCommerce integration. It’s fantastic to use along with Facebook Marketplace.

      Google Checkout

      Google Checkout

      For e-commerce store operators in the Western region, Google Pay is another excellent choice. Many people in the United States and Europe use Google Wallet to keep track of their finances. They can effortlessly pay with Google checkout because they shop online. This solution is faster than other dropshipping gateways and more dependable since Google checkout deducts the least amount of money.



      Currently, Authorize.net is available in over 33 countries. It is one of the most established and well-known online payment gateways. It also comes with many extensions, making integrating with WooCommerce stores a breeze. For eCommerce and dropshipping stores, Authorize.net provides the lowest transaction.


      1. What is Payment Gateway, and how it works?

      To understand “What Is A Payment Gateway,” all you need to know is a technology that ensures the smooth transfer of payment details from the site to any bank or financial institution. If you have trouble figuring out a payment gateway, you can always rely on JanBask Digital Design’s eCommerce Website Development Services.

      2. What Is Important about Payment Gateway Integration for e-Commerce?

      Payment gateway integration is crucial to e-commerce because it secures online transactions, allowing businesses to transact with customers.

      3. What are some of the popular payment gateways?

      Some famous payment gates include PayPal, Stripe, Square, Authorize.Net, and Braintree, with differing attributes, charges, and integration possibilities that fit particular business requirements.

      4. How do you integrate the payment gateway in the website and payment gateway API integration?

      Integrating a payment gateway involves several steps: this includes picking a suitable payment gateway provider, setting up an account, getting the API keys, integrating the APIs into the site's checkout page, and running tests to ensure successful transactions. Suppose you need help figuring out a payment gateway or which one to add. In that case, you can always rely on JanBask Digital Design's e-commerce website Development Services.

      5. Explain Payment Gateway API Integration.

      Payment gateway API integration involves adding the API to your website or application so that your site can efficiently process credit card information in an encrypted format to secure transmissions of sensitive payment data between your site and the payment gateway provider system.

      6. Is there any third-party payment gateway? 

      Yes, merchants can take advantage of several other third-party payment gateways. They act as independent agents for banks, offering diverse payment options to companies.

      7. How do you identify the best payment gateway for e-commerce websites?

      To find the perfect payment gateway for an e-commerce site, one must consider transaction volume, geographical scope, safety measures, seamless integration with existing infrastructures or software packages, and associated fees. The most popular solutions in this regard are PayPal, Stripe, and Braintree.

      8. What is the best online payment platform?

      Digital platforms that facilitate electronic payments for goods and services purchased online. They have different traits: level of security, transaction charges, and accepted forms of payment.

      9. Can a website development company help me with payment gateway integration?

      Yes, a website development company or any agency with professional web development services can help you with payment gateway integration. They can help with online payment platforms and securing a payment gateway for websites and e-commerce websites. Suppose you are looking for a website development company. In that case, you can also search on the internet using the keywords below:

      • website development companies
      • website development company
      • web development services
      • professional web development services


      If you are considering diving into the eCommerce business, you need to learn what a payment gateway is first since it is one of the most integral aspects of eCommerce. When it comes to deciding how to create a payment gateway for a website or how to go about payment gateway integration, look for a profitable option. Websites using inbuilt payment gateways are more trusted by users. Go for payment gateway integration that:

      • Supports multiple payment methods
      • Fast processing
      • Easy to use
      • No layered charges
      • Is secure. 

      If you are looking for the right partner to develop a complete e-commerce launch and payment gateway integration roadmap, connect with us!

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      avantis direct

      this is a very good blog all doubts clear about payment gateway integration

      Talk to Marketing Expert!