(5/5)

Coffee Bot (Mattermost)

Automated workflow: Coffee Bot (Mattermost). This workflow processes data and performs automated tasks.

Integrations Used (3)

Mattermost

Cron

Google Calendar

Workflow Structure (7 nodes)

100%

Mattermost

Announce groups

Cron

Weekly trigger on monday

Mattermost

Greetings

Mattermost

Employees in coffee chat channel

Stop And Error

Error Handler

Function

Divide into groups

Google Calendar

Send calendar invites

Node Types:

code

default

trigger

action

Requires credentials

Prerequisites

Required Credentials (2)

Google Calendar

Used by: Send calendar invites

Docs

Mattermost

Used by: Greetings, Announce groups +1 more

Docs

Complexity

Complex

Advanced features used. Requires n8n experience.

Setup time: ~35 min

Score: 48/100

Custom Code

4 Integrations

When to Use This Workflow

Streamline Team Communication

Automatically route notifications and updates to the right channels and people.

Reduce information overload while keeping everyone informed.

Scheduled Operations

Run automated tasks at specific times - daily reports, weekly cleanups, monthly backups.

Set it and forget it - reliable automation that runs on your schedule.

Error Reduction

Eliminate human error from routine processes with consistent automation.

Improve accuracy and reliability across your workflows.

workflow.json

{
  "id": "7",
  "name": "Coffee Bot (Mattermost)",
  "nodes": [
    {
      "name": "Divide into groups",
      "type": "n8n-nodes-base.function",
      "position": [
        1060,
        300
      ],
      "parameters": {
        "functionCode": "const ideal_group_size = 3;\nlet groups = [];\nlet data_as_array = [];\nlet newItems = [];\n\n// Take all the users and add them to an array\nfor (let j = 0; j < items.length; j++) {\n  data_as_array.push({username: items[j].json.username, email: items[j].json.email});\n}\n\n// Fisher-Yates (aka Knuth) Shuffle\nfunction shuffle(array) {\n  var currentIndex = array.length, temporaryValue, randomIndex;\n\n  // While there remain elements to shuffle...\n  while (0 !== currentIndex) {\n\n    // Pick a remaining element...\n    randomIndex = Math.floor(Math.random() * currentIndex);\n    currentIndex -= 1;\n\n    // And swap it with the current element.\n    temporaryValue = array[currentIndex];\n    array[currentIndex] = array[randomIndex];\n    array[randomIndex] = temporaryValue;\n  }\n\n  return array;\n}\n\n// Randomize the sequence of names in the array\ndata_as_array = shuffle(data_as_array);\n\n// Create groups of ideal group size (3)\nfor (let i = 0; i < data_as_array.length; i += ideal_group_size) {\n  groups.push(data_as_array.slice(i, i + ideal_group_size));\n}\n\n// Make sure that no group has just one person. If it does, take\n// one from previous group and add it to that group \nfor (let k = 0; k < groups.length; k++) {\n  if (groups[k].length === 1) {\n    groups[k].push(groups[k-1].shift());\n  }\n}\n\nfor (let l = 0; l < groups.length; l++) {\n    newItems.push({json: {groupsUsername: groups[l].map(a=> a.username), groupsEmail: groups[l].map(b=> b.email)}})\n}\n\nreturn newItems;"
      },
      "typeVersion": 1,
      "id": "583411a8-d287-4592-81af-5e174eea887c",
      "notes": "This function node performs automated tasks as part of the workflow."
    },
    {
      "name": "Greetings",
...