Lesson 03 · 10 min
JSON, headers, and query
The body is data, headers are its passport, the query refines the address.
10 minLesson 3 of 9Practice includedAsk AI on any point
APIs usually speak JSON. So the other side understands the body, the Content-Type: application/json header names the format. The Accept header says what the client wants back. Filters and pages go into the query: /products?category=books&page=2.
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