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Add experimental util to allow fetch remote url data from REST API #31085

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merged 2 commits into from
May 4, 2021

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getdave
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@getdave getdave commented Apr 22, 2021

Description

Since #18042 we've had a way to retrieve some data about a remote URL (currently just title but more is coming).

We'd like to start making use of this in the editor - specifically within the link UI to provide "rich" preview/details about external URLs.

This PR is the first step which adds the ability to call the REST API via @worpress/core-data.

How has this been tested?

  • Checkout PR branch
  • Build npm run dev.
  • Create a new Post.
  • Open browser devtools.
  • Paste the following
wp.coreData.__experimentalFetchRemoteUrlData('www.wordpress.org').then(data => console.log(data));
  • Hit Enter.
  • You should see an object returned with a title property which matches the contents of the <title> tag on www.wordpress.org.
{
    title: "Blog Tool, Publishing Platform, and CMS &mdash; WordPress.org",
}
  • Try changing the URL and see different title tag returned.

Screenshots

Types of changes

New feature (non-breaking change which adds functionality)

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • My code follows the accessibility standards.
  • I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

@getdave getdave self-assigned this Apr 22, 2021
@getdave getdave added [Package] Core data /packages/core-data [Type] Experimental Experimental feature or API. labels Apr 22, 2021
@getdave getdave requested a review from draganescu April 22, 2021 12:17
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Size Change: +103 B (0%)

Total Size: 1.47 MB

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compressed-size-action

@getdave getdave marked this pull request as ready for review April 22, 2021 13:52
@getdave getdave requested a review from nerrad as a code owner April 22, 2021 13:52
@draganescu
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Should this be a part of fetch links suggestions somehow? I am not sure it should be something more than an internal API.

@getdave
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getdave commented Apr 23, 2021

@draganescu I'm not sure it can be. The link suggestions is for searching for WP entities whereas we need to use this new REST API endpoint on direct entries (specifically URLs such as www.wordpress.org).

Here's the code path

( val, { isInitialSuggestions } ) => {
return isURLLike( val )
? directEntryHandler( val, { isInitialSuggestions } )
: handleEntitySearch(
val,
{ ...suggestionsQuery, isInitialSuggestions },
fetchSearchSuggestions,
directEntryHandler,
withCreateSuggestion,
withURLSuggestion
);
},

As you can see we branch off depending on whether the entry is URL-like. It's only in the directEntryHandler that we need to fetch details about the remote URL.

I guess we could introduce a completely new fork into the fetchLinkSuggestions code which would call the __experimental/url-details endpoint if certain arguments were passed but this would feel a little like mixing concerns. I wouldn't call a function that is supposed to fetch link suggestions and expect to receive details about a remote URL.

Perhaps I missed something? How did you see this working?

@getdave
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getdave commented Apr 30, 2021

@draganescu In the interests of moving forward could we merge this as experimental? We can always remove or refactor later. What's the etiquette here?

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@Mamaduka Mamaduka left a comment

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I think this works well and can be stabilized once the URL Details API endpoint is stable. Probably after #28791.

I've not reviewed experimental APIs before, but this matches description provided in Coding Guidelines.

@getdave getdave merged commit 90f67f9 into trunk May 4, 2021
@getdave getdave deleted the add/experimental-fetch-remote-url-data branch May 4, 2021 12:44
@github-actions github-actions bot added this to the Gutenberg 10.6 milestone May 4, 2021
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