50p 2018

UPI is one of those innovations that come along every once in a while and transform the landscape. By reducing friction in payments, it has opened up new product possibilities. To unlock those possibilities you need to know your way around and ask the right questions. This talk is a sort of techno-business map that we’ve plotted from our own journeys in the UPI universe.

We will look at how UPI is architected, the APIs it exposes, the payment experiences that it
enables and then dive deep into a couple of payment flow implementations to see how
things really work under the hood.

Outline

1. What is UPI?
   a. UPI architecture in a nutshell
   b. How the money flows

2. Possibilities that UPI creates
   a. Current:
   i). In-App payment
   ii). Collect request / Intent launch
   iii). Deep linking
   iv). Split Payments
   v). Dynamic VPA
   vi). Collect request on delivery
   b. Upcoming
   i). Recurring payments
   ii). Subscriptions

3. Building a Merchant Payments solution using UPI
   a. The basic API suite
   i). Balance check
   ii). Payments flow
   iii). Account linking
   iv). Miscellaneous / Supporting (Queries, Bank list etc. )

   b. In-App payment using a UPI SDK
   i). UPI SDK under the hood
   ii). Integrating the SDK
   c. Collect request and UPI intent APIs
   i). How the Intent API works
   ii). The collect money flow
   iii). Juspay’s Euler (A unified gateway to UPI PSP) makes it easier

Speaker bio

Dilip Jain is an Engineer at Juspay. He is a FP enthusiast and likes to code in Haskell.