json-schema invalid (maybe)

[riccardo-forina]

I'm using ajv to validate the json-schema from a connector and build a form for it. It looks like the schema is invalid because the top level object is missing the type property.

This doesn't work

{
  "description": "Receive messages from a Slack channel.",
  "properties": {
    "channel": {
      "description": "The Slack channel to receive messages from",
      "example": "#myroom",
      "title": "Channel",
      "type": "string"
    },
    "token": {
      "description": "The token to access Slack. A Slack app is needed. This app needs to have channels:history and channels:read permissions. The Bot User OAuth Access Token is the kind of token needed.",
      "title": "Token",
      "type": "string",
      "x-descriptors": [
        "urn:alm:descriptor:com.tectonic.ui:password"
      ]
    }
  },
  "required": [
    "channel",
    "token"
  ],
  "title": "Slack Source"
}

This does work

{
  "description": "Receive messages from a Slack channel.",
  "properties": {
    "channel": {
      "description": "The Slack channel to receive messages from",
      "example": "#myroom",
      "title": "Channel",
      "type": "string"
    },
    "token": {
      "description": "The token to access Slack. A Slack app is needed. This app needs to have channels:history and channels:read permissions. The Bot User OAuth Access Token is the kind of token needed.",
      "title": "Token",
      "type": "string",
      "x-descriptors": [
        "urn:alm:descriptor:com.tectonic.ui:password"
      ]
    }
  },
  "required": [
    "channel",
    "token"
  ],
  "title": "Slack Source",
  "type": "object"
}

Note the final "type": "object" property