feat: add Warning
http response deprecation notices
#2253
Merged
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Adds a
Warning: 299 - "Deprecated ..."
http response header for endpoints marked as deprecated. This should help with developer awareness.E.g.
There are no deprecation-related http headers available and widely in-use today, however, this one is at least RFC spec-compliant
This is implemented as a generic Fastify plugin, and is a good candidate to port over to our api-toolkit repo.