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How Do APIs Work?

Blog post from Prismic

Post Details
Company
Date Published
Author
Sam Littlefair
Word Count
1,302
Company Posts That Month
7
Language
English
Hacker News Points
-
Post removed?
No
Summary

APIs, or Application Programming Interfaces, serve as connections between computers or programs, allowing them to communicate and perform tasks such as retrieving web pages and updating resources. On the web, APIs are often associated with HTTP requests, which are messages sent from a client to a server to either request data or perform an action. Each HTTP request includes methods like GET, POST, PATCH, and DELETE to specify the action to be taken, and a URL that may contain parameters to refine the request. HTTPS adds a layer of security by encrypting these requests. REST APIs, which follow specific guidelines for structure and behavior, are favored for their clarity and ease of use, with JSON being a common format for data exchange. APIs can be used for a wide range of functions, from fetching content created in tools like Prismic to executing physical actions if supported by the necessary hardware.

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