Custom portal not being used when set with `setDefaultRequestOptions()`

Setting a custom portal with IRequestOptions via setDefaultRequestOptions() is not working for me; making calls to arcgis.com instead of the custom portal. Looks like it should be mixing it in: https://github.com/Esri/arcgis-rest-js/blob/master/packages/arcgis-rest-request/src/request.ts#L37-L47 and https://github.com/Esri/arcgis-rest-js/blob/master/packages/arcgis-rest-request/src/request.ts#L195. I’ve set other IRequestOptions with setDefaultRequestOptions() to test and they are being successfully mixed in. Is this not the proper method for setting a custom portal? Or is there something I’m missing in the portal package to do so? Or?

And a mostly unrelated question for you Esri folks that work with portal a lot. Is there a simple query to get items by folder id? I looked at how portal content fetches items for a folder. It makes several pretty complex queries and ultimately queries the item ids to display. I’m hoping there’s an easier way but the lack of a function in the portal package has me thinking not. Thanks.

Edit: ownerfolder: <ID> works just fine if you remember to pass auth with the request.

[COV-GIS]

Not at this time. But…

setDefaultRequestOptions({
  portal: 'https://<URL>/portal/sharing/rest/'
});

searchItems('ownerfolder: ea19...91ac').then();

// request made to arcgis.com

searchItems({
  q: 'ownerfolder: ea19...91ac',
  portal: 'https://<URL>/portal/sharing/rest/'
}).then();

// request made to custom portal url

And any custom request options are inaccessible. https://github.com/Esri/arcgis-rest-js/blob/master/packages/arcgis-rest-request/src/request.ts#L15

If time permits I may PR getDefaultRequestOptions() and getFolderItems().

[patrickarlt]

Reopening this. I think that anonymous requests with a portal set with setDefaultRequestOptions should still work since people might use this to access public data on their own portals.