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Filter by taxonomy parent using Json api

In drupal 8.5 I have a taxonomy term list like this:

Term A (12 items)   Term 1 (3 items)   Term 2 (8 items)   Term 3 (1 items) Term B (3 items)   Term 4 (1 items)   Term 5 (2 items)

I want to use the json api to fetch all data within term B. So I expect a result set of 3 items. But when I do:

https://www.some-api.com/jsonapi/node/test?   _format=api_json&   filter[taxFilter][condition][path]=field_regio&   filter[taxFilter][condition][operator]=IN&   filter[taxFilter][condition][value][]=2 (=> id of term B)

I get a response with "data": [], This is probably because the term id of these nodes are set to the children (term 4 and 5).

But isn’t drupal supposed to return all nodes in the children of term B?

Otherwise how can I get all nodes in Term A or B?

This article was republished from its original source.
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Filter by taxonomy parent using Json api

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