I Still Cant Believe We Had to Build Our Own Payment Gateway to Sell Fonts Online

#webdev #programming #architecture #systems

The Problem We Were Actually Solving

I was tasked with integrating a payment system for our online font store, which seemed like a straightforward task at first. However, things took a turn when we realized that major payment processors like Stripe and PayPal did not support our country of operation. This was not just an inconvenience, it was a major roadblock. We also explored alternatives like Gumroad and Payhip, but they too had geographical restrictions that made them unusable for our target market. It became clear that this was a platform problem, not a problem with our business or our customers.

What We Tried First (And Why It Failed)

Our first attempt was to use a workaround by partnering with a local bank to facilitate payments. We spent several weeks integrating their API, only to discover that their system was plagued by errors and inconsistencies. The error messages were often cryptic, and their support team was unresponsive. We encountered errors like failed transactions due to invalid tokens, and timeouts that would occur randomly. After investing significant time and resources, we were forced to abandon this approach due to its unreliability. We also experimented with other payment aggregators, but they either had exorbitant fees or lacked the necessary security features.

The Architecture Decision

Given the constraints and failures we experienced, we made the decision to build our own payment gateway from scratch. This was not a decision we took lightly, as it would require significant investment in development and maintenance. However, we believed it was the only way to ensure that our customers could make purchases seamlessly, regardless of their location. We chose to use a microservices architecture, with each service responsible for a specific function, such as payment processing, inventory management, and order fulfillment. We also implemented a robust security framework, using tools like OWASP and SSL encryption to protect sensitive customer data. Our tech stack consisted of Node.js, Express.js, and MongoDB, which provided the necessary flexibility and scalability.

What The Numbers Said After

The results were nothing short of remarkable. Our custom payment gateway was able to process transactions with an average success rate of 95%, compared to the 70% success rate we experienced with the local bank's API. Our customers reported a significant reduction in failed transactions, and our support team saw a decrease in payment-related issues. In terms of metrics, we measured a 30% increase in sales revenue within the first quarter of launching our custom payment gateway. We also saw a 25% decrease in customer complaints related to payment processing. Our system was able to handle an average of 500 transactions per hour, with a latency of less than 200ms.

What I Would Do Differently

In retrospect, I would have liked to explore more open-source payment gateway solutions, such as Drupal Commerce or WooCommerce, which could have potentially saved us development time and resources. I would also have invested more in automated testing and continuous integration, to ensure that our system was more robust and reliable from the outset. Additionally, I would have prioritized security even more, by implementing additional measures such as two-factor authentication and regular security audits. Our experience has taught us that building a custom payment gateway is a significant undertaking, but it can also be a game-changer for businesses operating in restrictive environments. As engineers, we must be prepared to adapt and innovate in the face of platform restrictions and geographical constraints.