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RFC 7232 - Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests

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IETF - Internet Engineering Task Force

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RFC 7232: Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests

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https://datatracker.ietf.org/doc/rfc7232/

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IETF Datatracker

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The Hypertext Transfer Protocol (HTTP) is a stateless application- level protocol for distributed, collaborative, hypertext information systems. This document defines HTTP/1.1 conditional requests, including metadata header fields for indicating state changes, request header fields for making preconditions on such state, and rules for constructing the responses to a conditional request when one or more preconditions evaluate to false.

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