nanobot/docs/MSTEAMS.md

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# Microsoft Teams (MVP)
This repository includes a built-in `msteams` channel MVP for Microsoft Teams direct messages.
## Current scope
- Direct-message text in/out
- Tenant-aware OAuth token acquisition
- Conversation reference persistence for replies
- Public HTTPS webhook support through a tunnel or reverse proxy
## Not yet included
- Group/channel handling
- Attachments and cards
- Polls
- Richer Teams activity handling
## Example config
```json
{
"channels": {
"msteams": {
"enabled": true,
"appId": "YOUR_APP_ID",
"appPassword": "YOUR_APP_SECRET",
"tenantId": "YOUR_TENANT_ID",
"host": "0.0.0.0",
"port": 3978,
"path": "/api/messages",
"allowFrom": ["*"],
"replyInThread": true,
"mentionOnlyResponse": "Hi — what can I help with?",
"validateInboundAuth": false,
"restartNotifyEnabled": false,
"restartNotifyPreMessage": "Nanobot agent initiated a gateway restart. I will message again when the gateway is back online.",
"restartNotifyPostMessage": "Nanobot gateway is back online."
}
}
}
```
## Behavior notes
- `replyInThread: true` replies to the triggering Teams activity when a stored `activity_id` is available.
- `replyInThread: false` posts replies as normal conversation messages.
- If `replyInThread` is enabled but no `activity_id` is stored, Nanobot falls back to a normal conversation message.
- `mentionOnlyResponse` controls what Nanobot receives when a user sends only a bot mention such as `<at>Nanobot</at>`.
- Set `mentionOnlyResponse` to an empty string to ignore mention-only messages.
- `validateInboundAuth: true` enables inbound Bot Framework bearer-token validation.
- `validateInboundAuth: false` leaves inbound auth unenforced, which is safer while first validating a new relay, tunnel, or proxy path.
- When enabled, Nanobot validates the inbound bearer token signature, issuer, audience, token lifetime, and `serviceUrl` claim when present.
- `restartNotifyEnabled: true` enables optional Teams restart-notification configuration for external wrapper-script driven restarts.
- `restartNotifyPreMessage` and `restartNotifyPostMessage` control the before/after announcement text used by that external wrapper.
## Setup notes
1. Create or reuse a Microsoft Teams / Azure bot app registration.
2. Set the bot messaging endpoint to a public HTTPS URL ending in `/api/messages`.
3. Forward that public endpoint to `http://localhost:3978/api/messages`.
4. Start Nanobot with:
```bash
nanobot gateway
```
5. Optional: if you use an external restart wrapper (for example a script that stops and restarts the gateway), you can enable Teams restart announcements with `restartNotifyEnabled: true` and have the wrapper send `restartNotifyPreMessage` before restart and `restartNotifyPostMessage` after the gateway is back online.