The Biggest Mistake Students Make With API Design
Struggling with API Design? Here is the no-BS guide to understanding it, complete with real-world examples and study shortcuts.
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David Kim · Curriculum Designer
Have you ever stared at a API Design problem and felt like you were reading another language? You aren't alone. Let's break down exactly why this trips up so many students.
Did you make this error?
- The Trap: using GET requests to modify data
- The Proof: Read this scenario: GET requests can be cached by browsers and servers. If you use a GET request to delete a user (`/api/deleteUser?id=5`), a web crawler might accidentally delete your whole database.
If your logic doesn't match the proof above, you've fallen for the trap. Erase it and start over.
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