Microsoft Graph Webhook Listener
The gateway platform is an inbound event listener. It's how Hermes receives change notifications from Microsoft Graph — "a Teams meeting ended," "a new message
The gateway platform is an inbound event listener. It's how Hermes receives change notifications from Microsoft Graph — "a Teams meeting ended," "a new message landed in this chat," "this calendar event was updated." Different from the platform (which is a chat bot users type to) — this one is M365 telling Hermes something happened, not a person. …
What this page covers
- Prerequisites
- Quick Start
- Configuration
- Security Hardening
- clientState is the primary auth check
- Source-IP allowlisting (production deployments)
- HTTPS termination
- Response hygiene
- Troubleshooting
- Related Docs
Section outline mirrored from the official Hermes Agent documentation. Follow any heading to read the complete text on the source site.
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