Microsoft Dynamics 365 for Retail API

Hello All, Hope all doing good! I have an question for you guy's go through it!

I'm developing a data integration application which help users to sync data from their database into

Microsoft Dynamics 365 for Retail.

Unfortunately, I'm unable to find where the API is or any documents related to Microsoft Dynamics 365 for Retail. All I found are only documents for CRM.

Anyone familiar to Microsoft Dynamics 365 API, please guide me where should I start from the beginning? I would like to connect to Microsoft Dynamics 365 API to query for products & categories, or even create & delete products, update product attributes.