How to edit and update multiple rows of an editable SmartTable?

I created a SmartTable which has the propertie editable=”true”. Shown as follows:

How can I select all updated rows of the table and update them in the backend?

I was thinking to select every updated row so I can call them in the controller with getSelectedIndices and then update each row with a PUT method. Would that be possible like that or is there a simpler way to update the table?