Create a channel, invite users to the channel, post a message, and upload a file

{
  "id": "164",
  "name": "Create a channel, invite users to the channel, post a message, and upload a file",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        250,
        250
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        450,
        250
      ],
      "parameters": {
        "resource": "channel",
        "channelId": "n8n-docs",
        "additionalFields": {}
      },
      "credentials": {
        "slackApi": "Slack Bot Access Token"
      },
      "typeVersion": 1
    },
    {
      "name": "Slack1",
      "type": "n8n-nodes-base.slack",
      "position": [
        650,
        250
      ],
      "parameters": {
        "userIds": [
          "U01797FGD6J"
        ],
        "resource": "channel",
        "channelId": "={{$node[\"Slack\"].json[\"id\"]}}",
        "operation": "invite"
   ...