How to use "IS NULL" and "IS NOT NULL" Operators in JSON API Collections? I am creating an API with Conditions and Operators. For '=' and '&lt;&gt;' operators its working fine. But for "IS NULL" and "IS NOT NULL" operators the response is 400: Bad Request.

{{URL}}/jsonapi/node/CONTENT_TYPE?filter[filter1][condition][path]=TAXONOMY_FIELD.drupal_internal__tid&amp;filter[filter1][condition][value]={{TID}}&amp;filter[filter1][condition][operator]=IS NULL


Request:


Response:
The error says: Filters using the 'IS NULL' operator should not provide a value.


Should the operators be encoded ? If yes, then which encoding should be used and what is the encoded string for these operators ?
You don't need this line, because value is supposed to be null
&amp;filter[filter1][condition][value]={{TID}}