[wp-trac] [WordPress Trac] #40450: Introduce REST API endpoint for proxying requests to external oEmbed providers

[WordPress Trac]

#40450: Introduce REST API endpoint for proxying requests to external oEmbed
providers
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 Reporter:  westonruter                 |       Owner:  swissspidy
     Type:  enhancement                 |      Status:  reviewing
 Priority:  normal                      |   Milestone:  4.8
Component:  Embeds                      |     Version:
 Severity:  normal                      |  Resolution:
 Keywords:  has-patch needs-unit-tests  |     Focuses:  rest-api
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Comment (by westonruter):

 @timmydcrawford The only reason for the `post_ID` for context is to that
 the embed can be cached in a post's postmeta so that when the post gets
 viewed on the ''frontend'' it won't cause the site to crash with external
 requests. The capability check then I guess is to prevent some
 unauthorized user from filling up postmeta on a given post with oEmbed
 data.

 To me it seems that for the purposes of the REST API endpoint, we can just
 use transients instead, if we even really need caching here. The media
 library JS can then be updated to just go ahead and use the embed proxy
 endpoint and ignore whether it has a current post as context. Just like
 this: https://github.com/xwp/wordpress-develop/pull/225/commits/2bb963d

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Ticket URL: <https://core.trac.wordpress.org/ticket/40450#comment:6>
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