I don't think alibaba handles grocery as far as I know - at least in the US.

Probably it is most similar to Instacart/Amazon Grocery delivery but the issue with these is that they are more oriented toward high value, high convenience, high immediacy, highly customizable orders for groceries items.

The flip side would be a set time (i.e. Saturday or Sunday), a set location (i.e. local school parking lot), a set number of bulk items (i.e. eggs, bread, pasta, chicken legs, ground beef, milk).

Might be thinking of pinduoduo