Magento B2B - best way to assign shared catalog pricing

[arandazzoGLO]

I am trying to find out the recommended way to add prices to a shared catalog via the REST api. I am basing these questions off the documentation here:

http://devdocs.magento.com/guides/v2.2/rest/modules/catalog-pricing.html

For example, it appears that there is a way to set Tier prices for a specific customer group via the /V1/products/tier-prices endpoint. However, it looks like the /V1/products/base-price endpoint doesn't support customer groups.

What is the recommended API endpoint for updating shared catalog prices?