The 'wp-json/oembed/1.0/embed' endpoint in WordPress is part of the oEmbed protocol implementation, which allows for the embedding of content from one website into another with just a URL. Here's a detailed look at its functionality, history, and context:
oEmbed is an open standard that allows for embedding content from one site into another in a standardized way. It was initially proposed by oEmbed.com as a simpler alternative to embedding media through custom JavaScript or iFrames. This protocol lets publishers embed content from any site that supports oEmbed without needing to know the specifics of how to embed content from that particular site.
WordPress has integrated the oEmbed protocol into its core since version 4.4. The endpoint 'wp-json/oembed/1.0/embed' is part of the WordPress REST API, which provides a way for external services to request oEmbed data from WordPress sites:
The oEmbed standard was first introduced in 2009 by the oEmbed Initiative, aiming to simplify the embedding process across the web. WordPress adopted oEmbed to enhance user experience by allowing seamless content embedding from supported services like YouTube, Vimeo, Twitter, etc. This integration was:
By using this endpoint, WordPress sites can automatically generate embed codes for various content types, making it easier for users to share and display content from one site to another.