Using REST api, get parent (configurable item) of a child

[JeffAtNobal]

Given a SKU or entity_id, can you get the parent of an item if this is a variant of a configurable product?

another way of asking this question would be:

There is an endpoint .../products/:sku/children to get the children of a configurable product, but is there a way to get the inverse of this operation?

Any help is much appreciated.

[Dmitry_Fedyuk]

There is no such Web API, but you can make a simple Web API wrapper for the existing PHP API: \Magento\Catalog\Model\Product\Type\AbstractType::getParentIdsByChild()

How to get the parents (configurable) products for a child (simple) one? https://mage2.pro/t/1599

[petter_sh]

Hi,

I'm looking for the same function to use in block class and then display in template file. 

Find parent sku (configurable item) from child and just echo in template file.