How to integrate Payment Gateway

https://www.quora.com/How-do-payment-gateways-work-technically

http://stackoverflow.com/questions/3090907/how-to-create-payment-gateway-for-an-online-transaction

http://stackoverflow.com/questions/2294798/payment-gateway-for-java

https://www.bttpay.com/payment-gateway-integration-in-java/

https://www.quora.com/How-can-I-create-a-payment-gateway-application-in-Java


https://github.com/maxipago/sdk-java

https://www.quora.com/How-does-the-payment-gateway-application-work

https://www.quora.com/How-can-I-create-a-payment-gateway-application-in-Java


https://www.quora.com/I-want-to-create-online-payment-gateway-application-but-I-dont-knw-anything-about-coding-how-shall-I-work-on-it

u can mail me your exact problem statement at ahmad(dot)nazeeb(at)gmail(dot)com


https://www.quora.com/How-do-I-create-a-payment-gateway

https://www.quora.com/I-want-to-create-a-payment-gateway-What-are-the-technical-skills-needed-for-that-What-are-the-processes-of-creating-a-payment-gateway

https://www.quora.com/How-does-one-start-a-payment-gateway

https://www.bttpay.com/payment-gateway-integration-in-java/

http://www.wikihow.com/Integrate-a-Payment-Gateway-Into-a-Website

https://www.lynda.com/Business-Catalyst-tutorials/Establishing-payment-gateway/68388/78123-4.html

http://activemerchant.org/

http://stackoverflow.com/questions/2294798/payment-gateway-for-java


https://developer.paypal.com/docs/

http://designertuts.com/paypal-ipn-receiving-instant-payments-in-your-web-application.php

https://www.quora.com/How-is-Instamojo-able-to-charge-the-lowest-transaction-fee
http://www.opennovasoftware.com/solutions/psp

https://www.simicart.com/blog/6-must-have-payment-gateways-for-mobile-apps/ https://www.instamojo.com/

https://www.ccavenue.com/ccavenue_index.jsp

https://www.konakart.com/docs/CreatingAPaymentModule.html

https://www.braintreepayments.com/

https://www.quora.com/How-is-Instamojo-able-to-charge-the-lowest-transaction-fee

http://paywithpaytm.com/developer/paytm_sdk_doc?target=how-paytm-sdk-works
https://www.shopify.in/payment-gateways/india

http://ecommerce-platforms.com/ecommerce-selling-advice/choose-payment-gateway-ecommerce-store