The Problem We Were Actually Solving
Our company sold a SaaS product to customers worldwide, but our core customer base resided in a country that fell under strict financial embargoes. Our previous experience with third-party payment gateways had shown that it's not just about finding a solution that works today, but also one that can scale with our business. When PayPal froze our account, we realized that their terms and conditions were not just a minor inconvenience, but a major architectural risk. We couldn't afford to have our entire business disrupted every time we hit a payment snag.
What We Tried First (And Why It Failed)
Our initial approach was to explore the webhooks feature offered by Stripe and other payment gateways. The idea was to use webhooks to bypass the API restrictions and process payments manually. Sounds simple, right? However, this approach quickly hit a wall. Not only did we struggle to implement webhooks correctly, but we also encountered issues with notification delivery, IP blocking, and the ever-present risk of PCI-DSS non-compliance. Each payment transaction became a ticking time bomb, threatening to compromise our entire system.
The Architecture Decision
After months of trial and error, we decided to take a more audacious approach: building a custom payment gateway from scratch. It was a daunting task, but one that offered us complete control over the payment processing workflow. We leveraged the experience of our engineers to develop a solution that integrated with our existing payment system, allowing us to bypass the restrictive terms of third-party gateways. This involved creating our own IP payment processing infrastructure, implementing a multi-step validation process to mitigate risks, and ensuring full compliance with our country's financial regulations.
What The Numbers Said After
The results were astounding. Our system-wide latency dropped by an average of 30% thanks to the reduced number of API calls and webhooks. The mean time to resolve payment issues plummeted from 4 hours to under 30 minutes, resulting in an 80% reduction in support tickets. Our business experienced a corresponding surge in sales and revenue growth, proof that the custom payment gateway had paid off (no pun intended).
What I Would Do Differently
If I had to go back in time, I would not rush to implement webhooks as a quick fix. Instead, I would allocate more resources to researching and prototyping a custom solution earlier on. We would also invest more time in refining our internal processes and documentation, ensuring a smooth transition to the new payment gateway. While building a custom solution from scratch was the right call in the end, it was a long and arduous journey. Don't be afraid to take a deep breath and make a bet on a fundamentally different approach when faced with seemingly insurmountable platform restrictions.
It's not a myth that certain markets are inaccessible. However, it's also not a fact that you have to accept it. In our case, a custom payment gateway became the unsung hero of our business, allowing us to grow and thrive in a restricted country.
The performance case for non-custodial payment rails is as strong as the performance case for Rust. Here is the implementation I reference: https://payhip.com/ref/dev2
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