Gutenberg: Why are selectors missing from Wordpress core data store

[TKY2048]

When selecting the "core" store of Wordpress JavaScript API via wp.data.select("core") It returns an incomplete list of selectors.

The selectors returned are the following:

canUser: ƒ ()
getAuthors: ƒ ()
getEmbedPreview: ƒ ()
getEntitiesByKind: ƒ ()
getEntity: ƒ ()
getEntityRecord: ƒ ()
getEntityRecords: ƒ ()
getMedia: ƒ ()
getMediaItems: ƒ ()
getPostType: ƒ ()
getPostTypes: ƒ ()
getTaxonomies: ƒ ()
getTaxonomy: ƒ ()
getThemeSupports: ƒ ()
getUserQueryResults: ƒ ()
hasUploadPermissions: ƒ ()
isPreviewEmbedFallback: ƒ ()
isRequestingEmbedPreview: ƒ ()

Instead of the full lists shown in https://developer.wordpress.org/block-editor/data/data-core/

For example, wp.data.select("core").getCurrentUser() returns undefined when called from the edit function of a block declared inside a regiterBlockType function in a JS script registered in the init hook.

[Soean]

I can see all selectors in my console:

For resolving the undefined problem, please see https://github.com/WordPress/gutenberg/issues/14623#issuecomment-499445665

[TKY2048]

I'm trying to show some fields in a block based on user capabilities (only visible for admins). From what I understood from the post, I should be using withSelect HOC to inject, in this case, what would be the user object returnet by wp.data.select('core').getCurrentUser() as a prop for my component. Doing this still returns undefined, what makes me think i'm missing out something here. Still, when evaluating wp.data.select('core') directly in the console i get this list :

intead of the list shown by @Soean, but it's the same list that @Pretzel63 got in #14623 what makes me think we both were doing something wrong.
This is what I'm trying to do:

`const { withSelect } = wp.data;

function MyComponent ({currentUser}) {
// use current user
// return corresponding fields for either admins or normal users
}

export default withSelect( ( select ) => ( {
currentUser: select( 'core' ).getCurrentUser(),
} ) )( MyComponent );
`

Can I get some insight of what I could be doing wrong?

[stuartshields]

I know this is closed, but @TKY2048 I had the same issue as you and after digging around for a while I found out it's because it's not in the core build of WP yet. Hopefully this helps.

[TKY2048]

I found a workaround, got the expected behaviour with:

export default withSelect( select => ( { userIsAdmin: select( 'core' ).canUser( 'create', 'users' ), } ) )( MyComponent );

[janwidmer]

@stuartshields there seems still to be a discrepancy regarding available methods when doing wp.data.select("core") in the browser console versus what is documented on https://developer.wordpress.org/block-editor/data/data-core/.

E.g. the method getPostTypes is not documented. You wrote, it's not part of the core build, do you know, in which repo it is located then?

[swissspidy]

getPostTypes and the like are derived from the getEntity selectors I think. They are not documented individually due to repetition

[janwidmer]

ah ok.. funny enough, I also don't really find any usages in this repo when I search for the method..just two within tests..