system design
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Blog
How APIs Work: The Hidden Infrastructure Behind Modern Apps
The most successful piece of software engineering is the one your user never notices. When you book a ride on an app, check the morning weather, or authenticate a login with a single tap, you aren’t interacting with a single monolithic program. You are interacting with a distributed ecosystem of completely independent systems, stitched together in real time. APIs (Application…
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Blog
TikTok Architecture Explained: How the App Figures Out What You Want to Watch
When a video goes viral on TikTok, millions of people look at it at the exact same moment. Most people think the hard part for TikTok is sending the video file to everyone’s phones. But it isn’t. The video files are stored on servers all over the world, ready to play instantly. The real magic-and the hardest part-is the hidden…
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