EasyExperience level: 0-2 years · 3-5 years1 min read

Explain REST and the main HTTP verbs.

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Concept Made Simple

Coffee Chat Question

“Explain REST and the main HTTP verbs.”

Remember It Faster

Mind Map Answer

A REST API is a restaurant waiter 🧑‍🍳. You (client) don't barge into the kitchen (server/DB). You give the waiter a clear order, they fetch it and bring back a result. The verbs are how you phrase the order.

GET
“Show me the menu” — read
POST
“Place a new order” — create
PUT
“Replace my order” — update
DELETE
“Cancel my order” — delete

Learn by Doing

Hands-on Keyboard

http
GET    /orders/42      -> 200 + order JSON
POST   /orders         -> 201 Created
PUT    /orders/42      -> 200 updated
DELETE /orders/42      -> 204 No Content

Think Beyond the Expected

What If?

What makes an API 'RESTful' beyond using HTTP verbs?

Statelessness (each request carries everything needed), resource-based URLs (nouns, not verbs), proper status codes, and a uniform interface. Using GET/POST alone doesn't make it REST.

Real World

Nearly every web/mobile app talks to its backend over a REST API: the frontend GETs data to render, POSTs forms, and the backend returns JSON. It's the lingua franca between client and server.

Interviewer's Expectation

Keywords they're listening for:

  • stateless
  • resource/noun URLs
  • correct verbs & status codes
  • JSON
  • idempotency

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Plain-language foundations

I'm preparing for a software engineering interview and want to understand this from scratch, as a beginner.

Topic: HTTP Methods (REST APIs)
Interview question: "Explain REST and the main HTTP verbs."

Please:
1. Explain the core idea in simple, plain language, using an everyday analogy.
2. Define any technical terms you use.
3. Walk through one small, concrete example.
4. Finish with a single sentence I can easily remember.

Keep the tone friendly and assume I'm new to this topic.
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