Creating a distinct identifier for a nested object in MongoDB with Angular-meteor: A step-by-step guide

I have this snippet of code in my app.js that adds a new region object to an array:

Countries = new Mongo.Collection('countries');

// Some skipped code

$scope.addRegion = function(newRegion) {
  $scope.country.regions.push(
    {
      name: newRegion.name,
      createdAt: new Date()
    }
  );
};

While this successfully adds new regions and persists them in the database, it lacks an "_id" field. How can I generate a unique id for each insertion (unique in the database)?

Answer №1

To generate a unique identifier, utilize the random package by calling Random.id. As mentioned in the documentation:

The Random.id function returns a distinct identifier, for example, "Jjwjg6gouWLXhMGKW", which is expected to be globally unique. When specifying the optional argument n, you can set the length of the identifier in characters, with the default being 17.

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