Zend certified PHP/Magento developer

Where is New Shipping Address processed during checkout

I am using freshly installed magento2.3.5-p2

I am required to create backend processing such as log storing to store the data when New Shipping Address is added during checkout

below is the page where the +New Address button appear on the checkout page

enter image description here

upon clicking the +New Address button a modal popup will appear to fill in a New Shipping Address details

enter image description here

upon filling in above form and click on “Ship here”

this new added address listing will be added in the Shipping Address list like the below image

enter image description here

how do I handle the way that this address is stored at the server side as I am unable to find where to edit the source code for this part.

what I needed to do is

  • able to get the street details and manipulate the way it is stored on the database
  • able to store the addresses details on log

Thank you