How APIs Handle Idempotency Without Double Charges episode artwork

EPISODE · Jun 10, 2026 · 10 MIN

How APIs Handle Idempotency Without Double Charges

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

Lucas and Luna dive deep into API idempotency, the unsung hero preventing double charges and duplicate actions in distributed systems. They break down how Stripe's idempotency keys work, why the concept is tougher than it sounds, and what happens when idempotency fails. Using concrete examples from payment APIs and order systems, they explain the trade-offs between strict and loose idempotency, and why idempotency is becoming a design requirement for any API that mutates state. No prior episode has covered idempotency directly, and it's a concept every developer building modern APIs needs to understand. #APIIdempotency #StripeAPI #IdempotencyKeys #DistributedSystems #PaymentAPIs #RESTAPI #IdempotentDesign #APIReliability #DoubleChargePrevention #HTTPMethods #PUTvsPOST #StateMutation #APIDesign #TechPodcast #SoftwareEngineering #FexingoBusiness #BusinessPodcast #TheAPIPodcast Keep every episode free: buymeacoffee.com/fexingo

Lucas and Luna dive deep into API idempotency, the unsung hero preventing double charges and duplicate actions in distributed systems. They break down how Stripe's idempotency keys work, why the concept is tougher than it sounds, and what happens when idempotency fails. Using concrete examples from payment APIs and order systems, they explain the trade-offs between strict and loose idempotency, and why idempotency is becoming a design requirement for any API that mutates state. No prior episode has covered idempotency directly, and it's a concept every developer building modern APIs needs to understand. #APIIdempotency #StripeAPI #IdempotencyKeys #DistributedSystems #PaymentAPIs #RESTAPI #IdempotentDesign #APIReliability #DoubleChargePrevention #HTTPMethods #PUTvsPOST #StateMutation #APIDesign #TechPodcast #SoftwareEngineering #FexingoBusiness #BusinessPodcast #TheAPIPodcast Keep every episode free: buymeacoffee.com/fexingo

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How APIs Handle Idempotency Without Double Charges

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This episode is 10 minutes long.

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This episode was published on June 10, 2026.

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Lucas and Luna dive deep into API idempotency, the unsung hero preventing double charges and duplicate actions in distributed systems. They break down how Stripe's idempotency keys work, why the concept is tougher than it sounds, and what happens...

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