Communication
Mattermost Webhook Call Invite
Post a Whereby room invite to a Mattermost channel from a webhook request.
Download workflow
Post a Whereby room invite to a Mattermost channel from a webhook request.
Setup
Connect Mattermost with permission to post in the intended channel. Set Select the configured room to the exact user_name expected in webhook requests and the slug of an existing Whereby room. Deploy the public HTTPS webhook and send JSON containing channel_id and user_name. Protect the endpoint URL; anyone who can call it can request a post to channels available to the connected Mattermost account.
In n8n, set the same user-name-to-room mapping in Set, configure the Mattermost credential and activate the webhook.
Behavior
A matching request posts “Join me in a video call:” to the supplied Mattermost channel and attaches a link to the configured Whereby room. Both formats stop before posting when the username is missing or does not match the configured mapping. The source only defines one user-to-room mapping. This workflow does not create a Whereby room or verify that the room is active. An uncertain post may already have arrived, so check Mattermost before retrying.
Inspiration & credits
Changes to the source
- Replace the personal username, channel ID, and hard-coded room with setup values.
- Validate the request username against the configured mapping before posting.
Adapted from Mattermost webhook call invite in Zie619/n8n-workflows. The source export does not identify a separate template author or license.
The collection’s MIT notice is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see repository licensing.
MIT License
Copyright (c) 2025 Zie619
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.