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How To Review Code That Deals With Money
You're probably focusing on the wrong things. It doesn't look as good as you think.
Sep 17
•
Alvaro Duran
2
How to Build Payment Webhooks Fast
It's not that webhooks are difficult.
Sep 10
•
Alvaro Duran
The ID Gapless-Latency tradeoff
You can get unique identifiers at scale either by Coordinating or by Centralizing ID creation. But you can't get gapless sequences without having to…
Sep 3
•
Alvaro Duran
1
Paying At The Pump: Why Auth and Preauth Are Not The Same Thing
And how it affects implementing new payment methods that look "similar" from the outside
Aug 20
•
Alvaro Duran
1
Testable Payment Webhooks
PSPs are prioritizing their engineers' experience above anyone else's
Aug 6
•
Alvaro Duran
The Joy of Being On Call For Payment Systems
How to be at ease when every second counts
Jul 16
•
Alvaro Duran
1
Why Payments Are Path-Dependent
A winning strategy to go around DNHs and improve payments authorization
Jul 2
•
Alvaro Duran
1
Code-First Reliability in Payment Systems
Building Payments to fail as soon as possible
Jun 25
•
Alvaro Duran
4
2
Why Payments Aren't Money Movements
Payments are contracts, and require an ecosystem of tools on top of transfers
Jun 18
•
Alvaro Duran
3
5 Common Antipatterns in Payment Systems Design
They're sensible approaches that end up becoming major obstacles for scale and maintenance down the road.
Apr 23
•
Alvaro Duran
9
Payment Cards Are An Insecure Protocol
Adopting modern encryption to credit card payments
Nov 6, 2024
•
Alvaro Duran
3
The Most Important Book In Payments Is a Data Systems Book
Challenging the belief that good software design isolates business concerns on the domain layer.
Sep 4, 2024
•
Alvaro Duran
8
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