What is an API? A Beginner’s Guide with Real-World Examples
If you’ve ever used a weather app to check the forecast, booked a flight online, or logged into a website using your Google account, you’ve used an API without even realizing it.
API stands for Application Programming Interface. While it sounds like heavy tech jargon, the concept is actually simple. Think of an API as a digital waiter in a restaurant.
The Restaurant Analogy
Imagine you are sitting at a table in a restaurant (this is the user or the client app). You look at the menu and decide what you want to eat (this is the request).
However, you can’t walk into the kitchen and cook the food yourself. You need someone to take your order to the kitchen, tell the chefs what to make, and bring your food back to your table. That messenger is the waiter—and that is exactly how an API works.
- You (The Client): Ask for something (
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