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HTTP is a protocol for serving web pages. A HTTP server takes HTTP requests in the form of a verb and a URI. RESTful APIs describes a convention for how HTTP verbs should be used and how URLs should be formatted.


Idempotence is a mathematical property for operations, that can be applied multiple times without changing the result. In HTTP, this describes the ability to send requests to the pipeline multiple times without side effects (like creating multiple records).

Examples of idemopotent operations: listing (GET) domains, query (GET) items, delete (DELETE) a domain, update (PUT) attributes ...

Examples of non-idempotent requests: create (POST) a domain, create (POST) an attribute

HTTP Verbs