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API facts & stats

7 fact-checked facts about APIs, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What does API stand for?

AnswerApplication programming interface

An API is a defined way for one piece of software to request data or actions from another.

What does JSON stand for?

AnswerJavaScript Object Notation

JSON is a lightweight text format for data, widely used in web APIs.

Going deeper

What does REST stand for in web APIs?

AnswerRepresentational State Transfer

REST is an architectural style for APIs built around resources and standard HTTP methods.

Which HTTP method is commonly used to create a new resource?

AnswerPOST

POST sends data to the server, often creating a new record.

What does HTTP status code 500 mean?

AnswerInternal Server Error

A 500 means something went wrong on the server while handling the request.

Expert level

What does HTTP status code 429 mean?

AnswerToo Many Requests

429 tells a client it has sent too many requests in a given time, as with API rate limits.

What is a webhook?

AnswerAn HTTP request a service sends to your URL when an event happens

Instead of you repeatedly asking for updates, a webhook pushes a notification when something occurs.

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