The Label HTTP header — representation metadata, RFC 3253, declared by 3 providers in the API Evangelist catalog.
Label
Representation Metadata IANA permanent request
A reference entry. The registry facts and catalog measurements below are complete; the written guidance for this header has not been authored yet.
Label is representation metadata — Headers describing the payload itself — its type, length, encoding, disposition, location.
The registry
Listed in the IANA HTTP Field Name Registry as a permanent entry. Defined in RFC 3253: Versioning Extensions to WebDAV: (Web Distributed Authoring and Versioning).
In the catalog
Declared by 3 providers across 7 published specification files in the API Evangelist catalog, where it appears as a request header — sent by the client.
Governed by these rules
Machine-enforceable governance rules from rules.apievangelist.com that apply to this header when it appears in an OpenAPI.
OpenAPI Components Headers Error error
Utilizing the headers object in the centralized OpenAPI components library helps make headers reusable across API requests and responses
Guidance: Rate Limits →OpenAPI Components Headers Info info
Utilizing the headers object in the centralized OpenAPI components library helps make headers reusable across API requests and responses
Guidance: Rate Limits →OpenAPI Headers Hyphenated Pascal Case error
HTTP headers should follow Hyphenated-Pascal-Case naming convention for consistency and readability, such as Content-Type, X-Request-Id, or Accept-Language.
Guidance: Naming →