[wp-trac] [WordPress Trac] #48838: Consider "caching" embedded REST API requests

[WordPress Trac]

#48838: Consider "caching" embedded REST API requests
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 Reporter:  TimothyBlynJacobs  |      Owner:  (none)
     Type:  enhancement        |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  REST API           |    Version:  4.4
 Severity:  normal             |   Keywords:
  Focuses:  performance        |
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 Inspired by #46249. What if the REST API "cached" embeds processed by
 `response_to_data`. This would help when embedding on collection responses
 with posts that share property values.

 We'd use the URL as the cache key. And the caching should be safe since
 it'd be isolated to `response_to_data` and we could clear it after
 `response_to_data` completes. The requests are also all `GET` requests.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48838>
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