you can run a client task and select product update.
You can update all or just DAT.
As Kylesun said you would need to have a Client Task setup with the type of update that you wanted to perform. You then need to know the task ID. You can view all the tasks using the URL: "https://FullePOURL:port/remote/clienttask.find"
Find your task in the list and note the ProductID and ObjectID.
To run the task use the URL
Note that the WebAPI is case sensitive.