Understanding payments
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- The document discusses the key entities involved in an online payment process including the merchant, customer, payment instruments, payment gateway, bank payment gateway, and how they interact. - It explains the integration process for payment gateways including getting payment instruments, integrating the client or server side, and the payment process of form submission, bank processing, redirection, and verification. - It provides examples of encryption logic and slangs used in payments.
Understanding payments
- 1. - - Explained by OmVikramThapa
- 3. DISCLAIMER THIS SESSION IS NOT ABOUT HOW TO BUILD A PG BUT ABOUT HOW THE PG & ITS SURROUNDING SYSTEM WORKS!!
- 4. CLIENT == MERCHANT PAYMENT INSTRUMENTS DIRECT PG == BANK PG PG AGGREGATOR CARD PROCESSOR PAYMENT PROCESSOR ISSUER BANK -------------------------------- SEAMLESS/NON-SEAMLESS INLINE/EXPRESS PAYMENT SUCCESS RATE SLANGS
- 5. MERCHANT ID SALT OR CHECKSUM ENCRYPTION LOGIC REDIRECT URL SURL FURL CURL PAYMENT STATUS API REFUND API CALLBACK API WHITELISTING SANDBOX
- 6. WHAT ARE THE MOST IMPORTANT THINGS A PAYMENT GATEWAY REQUIRES TO COMPLETE A PAYMENT FOR A PRODUCT? PAYMENT PAGE QUERY
- 7. THE ANSWER IS ROTI == ORDER OBJECT KAPDA == CUSTOMER OBJECT MAKAAN == PAYMENT OBJECT
- 8. CC DC NB WALLET UPI PAY LATER - PRE-DECIDED PG IN BAKGROUND - SERVES BANK CODE FOR NB - SERVES BANK DOWNTIME NOTIFN. - CHECKS USER SAVED CARD INFO - CHECKS ELIGIBILITY CRITERIA 1 GET PAYMENT INSTRUMENTS
- 9. CLIENT SIDE JUSPAY, BRAINTREE SERVER SIDE PAYU, CCAVENUE, BILLDESK 2 INTEGRATE
- 12. EXAMPLES SHA(order_id|order_amount|customer_email|custome r_phone|.......|SALT) ==> HASH MD5(order_id~order_amount~customer_email~custo mer_phone~SALT~customer_phone~customer_email ~order_amount~order_id) ==> HASH OUTPUT = UNIQUETARGET URL
- 13. 3 PAYMENT GATEWAY CLIENT SIDE - FORM SUBMITTOTARGET URL (MERCHANT LOOSE CONTROL HERE) SERVER SIDE - FORM SUBMIT FROM SERVER SIDE - AUTH & CAPTURE APIs (MERCHANT HAS SOME CONTROL HERE)
- 16. 5 REVERSE U-TURN MERCHANT ORDER ID PGTXN ID BANK REFERENCE NO BANK REFERENCE NO PGTXN ID MERCHANT ORDER ID
- 17. 6 REDIRECTION
- 18. 7 SERVER SIDE VERIFY CALL MOST OFTHE PGs PROVIDETHIS S2S CALLTO CROSSVERIFY THE PAYMENT.THIS ISTO AVOID RISK & PASS UDFVALUES.
- 20. THANKYOU QUOTE