Can we copy existing Proxy as New Proxy through Management API ? If YES, How?
No. There is no "copy" action. Not in one step.
You can export a proxy bundle as a zip, and then import what you have exported.
export:
GET -H "Accept:*.*" /v1/o/$ORG/apis/$PROXY/revisions/$R?format=bundle <br>
And then import is:
POST -H content-type:multipart/form-data /v1/o/$ORG/apis?action=import&name=$NEWNAME -F file=$ZIPFILE
It worked .. Thank you .. How can I create new Target Endpoint using Management API
That's also in the API documentation for the Administrative API.
Check it out! Good reading.