calcom/cal.diy · warning · BadRequestException

Invalid conferencing app. Available apps: GOOGLE_MEET.

Error message

Invalid conferencing app. Available apps: GOOGLE_MEET.

What it means

Thrown by ConferencingService.connectUserNonOauthApp when the app slug is not GOOGLE_MEET. This branch handles apps that do not require OAuth (only Google Meet, which derives from the user's existing Google Calendar connection). Returns HTTP 400. The endpoint POST /v2/conferencing/{app}/connect only documents GOOGLE_MEET as a valid value.

Source

Thrown at apps/api/v2/src/modules/conferencing/services/conferencing.service.ts:51

    private readonly conferencingRepository: ConferencingRepository,
    private readonly usersRepository: UsersRepository,
    private readonly tokensRepository: TokensRepository,
    private readonly googleMeetService: GoogleMeetService,
    private readonly zoomVideoService: ZoomVideoService,
    private readonly office365VideoService: Office365VideoService
  ) {}

  async getConferencingApps(userId: number) {
    return this.conferencingRepository.findConferencingApps(userId);
  }

  async connectUserNonOauthApp(app: string, userId: number) {
    switch (app) {
      case GOOGLE_MEET:
        const credential = await this.googleMeetService.connectGoogleMeetToUser(userId);
        return credential;
      default:
        throw new BadRequestException("Invalid conferencing app. Available apps: GOOGLE_MEET.");
    }
  }

  async connectOauthApps(
    app: string,
    code: string,
    decodedCallbackState: OAuthCallbackState,
    teamId?: number
  ) {
    const userId = await this.tokensRepository.getAccessTokenOwnerId(decodedCallbackState.accessToken);
    if (!userId) {
      throw new UnauthorizedException("Invalid Access token.");
    }
    switch (app) {
      case ZOOM:
        return await this.zoomVideoService.connectZoomApp(decodedCallbackState, code, userId, teamId);

      case OFFICE_365_VIDEO:

View on GitHub (pinned to 176037d0af)

Solutions

For GOOGLE_MEET only, call POST /v2/conferencing/google_meet/connect.
For ZOOM and OFFICE_365_VIDEO, use the OAuth flow: GET /v2/conferencing/{app}/oauth/auth-url, redirect, then handle the callback.
Validate the app slug client-side against the documented set for the connect endpoint before issuing the request.
Update the API client to expose separate connect/connectOauth methods keyed on the app's OAuth requirement.

Example fix

// before
await api.connectConferencing('zoom'); // wrong endpoint

// after
const OAUTH_APPS = ['zoom', 'office365_video'];
if (OAUTH_APPS.includes(app)) {
  const { data } = await api.getOauthUrl(app);
  window.location.href = data.authUrl;
} else {
  await api.connectConferencing(app); // google_meet
}

Defensive patterns

Strategy: validation

Validate before calling

import { GOOGLE_MEET } from '@calcom/platform-constants';

function validateNonOauthApp(app: string): void {
  if (app !== GOOGLE_MEET) {
    throw new Error(`${app} cannot be connected directly. Use the OAuth flow for ${app}.`);
  }
}

validateNonOauthApp(req.params.app);

Type guard

import { GOOGLE_MEET } from '@calcom/platform-constants';

function isDirectConnectApp(app: string): app is typeof GOOGLE_MEET {
  return app === GOOGLE_MEET;
}

Try / catch

try {
  await conferencingService.connectUserNonOauthApp(app, userId);
} catch (e) {
  if (e instanceof BadRequestException && /Invalid conferencing app/.test(e.message)) {
    return res.status(400).json({ code: 'use_oauth_flow', supported: [GOOGLE_MEET] });
  }
  throw e;
}

Prevention

Maintain a client-side map of which apps require OAuth vs direct connect.
Document the connect flow per app type in your integration guide.
Validate app slugs against imported constants rather than literal strings.

When it happens

Trigger: Calling POST /v2/conferencing/{app}/connect with app=zoom or app=office365_video — those require the OAuth flow (auth-url → callback), not the direct connect endpoint. Also any unknown slug like 'teams'.

Common situations: Client routes all conferencing connects through the same endpoint regardless of OAuth requirement; hardcoded slug list out of sync with the constants; integration assumes all apps connect directly.

Related errors

AI-assisted analysis of calcom/cal.diy@176037d0af (2026-08-12). Data as JSON: /api/errors/d2497649946f8f1f. Report an issue: GitHub.