Is there is a built in rest API to get ALL products with a specific attribute_code
ex. this API
https://domain.com/index.php/rest/V1/products/:productID
returns
..
<item>
<attribute_code>featured</attribute_code>
<value>0</value>
</item>
..
Best Answer
Should try with Search using REST APIs: http://devdocs.magento.com/guides/v2.1/howdoi/webapi/search-criteria.html
You should try with GET: