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Sreekar Reddy
Sreekar Reddy

Posted on • Originally published at sreekarreddy.com

🍽️ APIs Explained Like You're 5

A waiter between you and the kitchen

Day 1 of 149

πŸ‘‰ Full deep-dive with code examples


The Restaurant Analogy

Imagine you're at a restaurant. You don't walk into the kitchen to cook your own food.

You β†’ Waiter β†’ Kitchen

  • You tell the waiter what you want
  • The waiter goes to the kitchen
  • The kitchen prepares your order
  • The waiter brings it back

The waiter is the API!


In Tech Terms

Your app doesn't talk directly to servers. It uses an API:

Your App β†’ API β†’ Server/Database
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The API:

  • Takes your request
  • Talks to the system you can't access directly
  • Returns the data you need

Real Example

Your weather app doesn't have weather stations. It asks:

Weather App: "Hey Weather API, what's the weather in Sydney?"
Weather API: "25Β°C and sunny β˜€οΈ"
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That's it. Your app gets data without knowing HOW it was measured.


Why It Matters

APIs let different programs talk to each other:

  • Google Maps API β†’ Embed maps in any app
  • Stripe API β†’ Accept payments
  • Twitter API β†’ Show tweets on your site

You don't rebuild Google Maps. You just ask their API.


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