Metadata integration on 3rd party platform

Need some help to get metadata from Milestone. Currently I am able to get the live RTSP feeds from Milestone recording server to my application via ONVIF bridge, but I need to get the metadata boxes to be displayed as well. VA alerts are currently triggered by AgentVI-innovi software.

The reseller has mentioned that normally, no one uses ONVIF bridge to get metadata

There are samples that get live metadata and retrieve playback metadata. This is the recommended way to read metadata from the XProtect VMS using the MIP SDK.

https://doc.developer.milestonesys.com/html/index.html?base=samples/componentsamples/metadataliveviewer/readme.html&tree=tree_2.html

https://doc.developer.milestonesys.com/html/index.html?base=samples/componentsamples/metadataplaybackviewer/readme.html&tree=tree_2.html