Struggling with reactivity

I’m struggling with reactivity :frowning:

I have a class that exists on both the server and the client. In it’s constructor I want to pull in a document from a collection and set it to this._config.

export class AAM_Access {

  constructor() {
    this._id = "access";
    this._source = Configuration.find({_id : this._id});
    this._config = Configuration.findOne({_id : this._id});

    self = this;
      self._config = self._source.fetch()[0];

With this I’m getting an error on the server:

Error: Can't call yield in a noYieldsAllowed block!

I’m guessing this has something to do with calling .fetch() inside the Tracker.autorun. I would like this._config to be reactive, but I’m a little lost on how to go about it.

Any help would be fantastic :slight_smile:

EDIT: I do have 2 classes that extend this class, one for server one for client, just like Accounts_Server, Accounts_Client extend Accounts_Common. Might it be better to pull in the document in their constructors instead of in the common parent class?

You can’t use Tracker on the server out of the box. If you need an autorun, you can check out this package, which I’ve used successfully before:

Ah ok, thanks. I should’ve #rtfm a bit more closely.