Fexingo

The API Podcast with Fexingo: REST, GraphQL, and Modern Web APIs

Business EN ↓ 104 episodes

Every week, Lucas and Luna sit down at a developer-focused office workstation to trace how applications actually talk to each other — not the hype, but the design decisions, trade-offs, and real-world failures that shape modern API architecture. Lucas, with a journalist's precision, lays out why a team chose REST over GraphQL for a payments pipeline handling 50,000 requests per second, or how a poorly designed endpoint caused a cascade failure in a major ride-hailing service. Luna, the engaged interlocutor, pushes back: when does schema flexibility become a liability? How do versioning strateg...

Author

Fexingo

Episodes

The Hidden Cost of API Versioning at Scale 22.05.2026 8:11

Lucas and Luna dig into one of the unsung headaches in API design: versioning. When your API serves thousands of partners, changing a single field can break integrations worth millions. They walk through the three main versioning strategies — URI, header, and query parameter — and expose the trade-offs each one hides. Lucas brings real numbers from a major payments company that ran a year-long mig...

Why Webhooks Beat Polling for Real-Time Data 21.05.2026 6:06

Most APIs work on a request-response model: you ask, the server answers. But what when you need to know the instant something changes — a new payment, a GitHub commit, a Slack message? That's where polling breaks down and webhooks take over. In this episode, Lucas and Luna explore why webhooks are the dominant pattern for event-driven data, how companies like Stripe and GitHub rely on them, and th...

Why REST Still Beats GraphQL for 80 Percent of APIs 21.05.2026 8:03

Episode 2 of The API Podcast gets practical. Lucas and Luna debate the real trade-offs between REST and GraphQL — and land on a surprising conclusion backed by real data. They break down a 2025 Postman survey showing that 78% of production APIs still use REST, and explain why GraphQL adoption has stalled outside of a few use cases. They dig into GitHub's REST-to-GraphQL migration and the performan...

The Billion Dollar API Mistake Stripe Almost Made 19.05.2026 10:51

In this debut episode of The API Podcast with Fexingo, Lucas and Luna explore a pivotal moment in API design history: the near-disastrous early version of Stripe's API. They break down how Stripe's original REST endpoints would have doomed the company before it launched, and how a last-minute pivot to developer empathy—including idempotency keys and simple authentication—saved Stripe and set the s...