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 strategies survive a decade of production use? Together, they dissect public postmortems, API design docs, and developer surveys — not to sell a tool, but to understand the engineering logic behind each choice. This show is for backend engineers, API product managers, and technical leads who need to decide, not just follow the trend. Expect no demos, no code walkthroughs — just two smart people reasoning
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What is The API Podcast with Fexingo: REST, GraphQL, and Modern Web APIs?
The API Podcast with Fexingo: REST, GraphQL, and Modern Web APIs is a business podcast hosted by Fexingo, with 155 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.
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Fexingo hosts The API Podcast with Fexingo: REST, GraphQL, and Modern Web APIs, a business show with 155 episodes published.
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Episode #161
How API Pagination Prevents Data Overload
Aug 20, 202610 minS4
In this episode of The API Podcast, Lucas and Luna dive into the world of API pagination—the unsung hero that keeps data flowing smoothly. They explore why Facebook's GraphQL API uses cursor-based pagination, how Stripe's list endpoints default to sensible limits, and why offset pagination can turn into a performance nightmare at scale. With real-world examples and practical tips, they explain the trade-offs between offset, cursor, and keyset pagination, and how to choose the right strategy for your API. If you've ever wondered why some APIs return a 'next' link instead of a page number, this episode is for you. Tune in to learn how to prevent data overload and keep your users happy. #APIPagination #CursorBasedPagination #OffsetPagination #KeysetPagination #GraphQL #RESTAPI #WebAPI #DataOverload #APIStrategy #Stripe #Facebook #DeveloperTools #APIDesign #TechPodcast #FexingoBusiness #BusinessPodcast #Technology #SoftwareEngineering Keep every episode free: buymeacoffee.com/fexingo
How APIs Use Bulkhead Isolation to Stop One Slow Client
Aug 19, 20268 minS4
In this episode of The API Podcast, Lucas and Luna explore the bulkhead pattern, a resilience technique that isolates API resources so one slow or failing client can't take down the whole system. They break down how Bulkhead works with real-world examples from finance and e-commerce, explain the difference between thread pools, semaphores, and circuit breakers, and share practical guidance on sizing bulkheads and handling rejected requests. If you're designing APIs that need to stay up under load, this episode gives you a concrete strategy to protect your services and your users. #BulkheadPattern #APIResilience #ThreadPools #Semaphores #CircuitBreakers #SystemDesign #APIDesign #Microservices #TechPodcast #SoftwareEngineering #FexingoBusiness #BusinessPodcast #APIPodcast #ResilienceEngineering #Bulkheading #FaultTolerance #APIArchitecture #DeveloperPodcast Keep every episode free: buymeacoffee.com/fexingo
How Idempotency Keys Save Your API from Double Charges
Aug 18, 202611 minS4
In this episode of The API Podcast, Lucas and Luna dig into idempotency keys — the unsung heroes of reliable API design. You've probably used them without knowing: every time a payment gateway tells you to retry with the same key, that's idempotency at work. Lucas explains how idempotency keys work, why they matter beyond payments, and how Stripe made them a de facto standard. Luna brings up a real-world example: a double charge that happened on a ride-sharing app, and how the lack of idempotency caused it. They also cover the HTTP layer — how idempotent methods like PUT and DELETE fit in, and where POST and PATCH get tricky. If you're building or consuming APIs, this episode gives you one concrete pattern to steal: always send an idempotency key on every state-changing request. Tune in for a clear, no-fluff breakdown of a concept that keeps your data consistent. #IdempotencyKeys #APIDesign #StripeAPI #HTTPMethods #PaymentAPIs #ReliableAPIs #RetryStrategies #POSTandPATCH #PUTandDELETE #DataConsistency #DistributedSystems #DeveloperTips #APIBestPractices #TechPodcast #FexingoBusiness #BusinessPodcast #SoftwareEngineering #APISecurity Keep every episode free: buymeacoffee.com/fexingo
How APIs Use Retry Strategies to Handle Transient Failures
Aug 17, 202611 minS4
On this episode of The API Podcast, Lucas and Luna dive into the art of retries in API design. They explore the difference between transient and permanent failures, explain why exponential backoff with jitter is a must-have, and walk through real-world examples like Stripe's default retry behavior and how idempotency keys prevent duplicate charges. They also tackle the tricky balance between client-side retries and server load, the role of Retry-After headers, and the dangers of retry storms. If you've ever wondered why your API calls fail on a shaky Wi-Fi but succeed on the third try, this episode is for you. Along the way, they share their philosophy on keeping the show ad-free and how listener support helps. Tune in for a practical, no-nonsense guide to making your APIs more resilient. #APIRetry #ExponentialBackoff #IdempotencyKeys #TransientFailures #RetryAfter #ResilientAPIs #BackoffJitter #Stripe #APIResilience #TechPodcast #DeveloperTips #APIDesign #SystemDesign #RetryStorm #FexingoBusiness #BusinessPodcast #Tech #APIs Keep every episode free: buymeacoffee.com/fexingo
Why Your API Should Support Conditional GET Requests
Aug 16, 202611 minS4
In episode 157 of The API Podcast, Lucas and Luna dive into conditional GET requests and how they let HTTP caches skip re-sending unchanged responses. They walk through ETags and Last-Modified headers, explain the difference between 200 and 304 status codes, and show how adding a few headers can cut bandwidth and latency dramatically. Using real-world examples like a large e-commerce site's product catalog API, they discuss when conditional GETs make sense and when they don't, plus how to handle the tricky edge cases around weak validators and server-side complexity. If you've ever wondered why some APIs feel snappy even on slow connections, this episode gives you the low-level answer. And along the way, Lucas and Luna share why they keep the show ad-free and how listeners can support that mission with a small contribution. Tune in for a focused, practical look at a technique that every API designer should consider. #ConditionalGET #HTTPCaching #ETags #LastModified #APIDesign #WebPerformance #RESTfulAPI #TechPodcast #Technology #FexingoBusiness #BusinessPodcast #API #Cache #Bandwidth #Latency #HTTPStatus #304 #WebDev Keep every episode free: buymeacoffee.com/fexingo
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