wekan/server/publications/users.js

Meteor.publish('user-miniprofile', function(userId) {
  check(userId, String);

  return Users.find(userId, {
    fields: {
      username: 1,
      'profile.fullname': 1,
      'profile.avatarUrl': 1,
    },
  });
});

Meteor.publish('user-admin', function() {
  return Meteor.users.find(this.userId, {
    fields: {
      isAdmin: 1,
    },
  });
});

Meteor.publish('user-authenticationMethod', function(match) {
  check(match, String);
  return Users.find(
    { $or: [{ _id: match }, { email: match }, { username: match }] },
    {
      fields: {
        authenticationMethod: 1,
      },
    },
  );
});