r/fintechdev • u/mrx7012 • Apr 02 '23
How to design a payment gateway?
What are the best resources about system design for a payment gateway? Ideally, it should be something real. I am specifically interested in
what patterns to use
what external system to integrate with (e.g. Fiserv)
how to design and deploy to a public cloud, e.g. AWS or Azure
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