{

"$schema": "http://json-schema.org/draft-07/schema",
"definitions": {
  "channel": {
    "type": "object",
    "description": "(defined by script)",
    "properties": {
      "created": {
        "$ref": "#/definitions/time_integer"
      },
      "id": {
        "$ref": "#/definitions/channel_id"
      },
      "name": {
        "$ref": "#/definitions/channel_name"
      }
    }
  },
  "channel_type": {
    "type": [
      "null",
      "string"
    ],
    "enum": [
      null,
      "app_home",
      "channel",
      "group",
      "im",
      "mpim"
    ]
  },
  "timestamp": {
    "type": "string"
  },
  "ts": {
    "type": "string"
  },
  "user": {
    "type": "object",
    "description": "definition snipped. learn more: https://api.slack.com/events/user_change",
    "properties": {
    }
  },
  "message": {
    "type": "object",
    "description": "learn more: https://api.slack.com/events/message",
    "properties": {
      "channel": {
        "$ref": "#/definitions/channel"
      },
      "channel_type": {
        "$ref": "#/definitions/channel_type"
      },
      "event_ts": {
        "$ref": "#/definitions/timestamp"
      },
      "text": {
        "type": "string"
      },
      "ts": {
        "$ref": "#/definitions/ts"
      },
      "type": {
        "const": "message"
      },
      "user": {
        "$ref": "#/definitions/user"
      }
    },
    "example": {
      "channel": "D0PNCRP9N",
      "channel_type": "app_home",
      "event_ts": "1525215129.000001",
      "text": "How many cats did we herd yesterday?",
      "ts": "1525215129.000001",
      "type": "message",
      "user": "U061F7AUR"
    }
  }
}

}