How does REST API show data in Admin Grid ?
Thank You
These are the some useful links that may help you :
Create a REST API to get the data from the custom table in magento 2
Magento 2 Api/Data, When To Create It?
magento2, REST API how correctly return data
https://www.mageplaza.com/devdocs/creat-a-ui-form-in-magento-2.html
https://developer.adobe.com/commerce/frontend-core/ui-components/concepts/data-source/