Idempotency in APIs Explained | Why It Matters + Code Example

📌 Idempotency in APIs What exactly is idempotency in APIs—and why is it so important for backend developers and system architects? In this video, we break down the concept of idempotency using simple language, real-world examples, a flow diagram, and a code walkthrough. You’ll learn: What idempotency means in the context of APIs Why it matters for safe, reliable operations like payments or resource creation How to implement idempotent behavior using idempotency keys Which HTTP methods are naturally idempotent—and which ones need your help How to prevent duplicate processing in distributed systems If you've ever had to deal with duplicate requests, timeouts, or client retries, this video will show you exactly how to build APIs that can handle those scenarios gracefully. #Idempotency #APIDesign #RESTAPI #BackendDevelopment #SoftwareArchitecture #SystemDesign #ReliableAPIs #TechConcepts