Why can't this server side code find documents in my collection?



I am freaking out… I just want to get documents from a collection server side

I have this server side: works fine

import { Meteor } from 'meteor/meteor';
import qlikauth from 'qlik-auth';
import { Apps, TemplateApps } from '/imports/api/apps.js'
import { Customers, dummyCustomers } from '../api/customers.js';
import { Streams } from '/imports/api/streams.js'
import { senseConfig, engineConfig, certs, authHeaders } from '/imports/api/config.js';

Router.route('/sso', function(request, response, next) {

    console.log("Meteor's authentication module qlikAuthSSO.js received the forwarded request from Qlik Sense proxy. Meteor will now look which user is currently logged in, and request a ticket for this ID, and add his group memberships");
    // console.log(request);

    //first find the customers that have a logged in users (mongo returns a complete document)
    var customer = Customers.findOne({ 'users.currentlyLoggedIn': true });
    console.log('the simulated login received from the database: ', customer);

I have this server side (code gets called from a method) --> does return undefined…

import { Meteor } from 'meteor/meteor';
import { Customers } from '/imports/api/customers';

//import config for Qlik Sense QRS
import { senseConfig, certs, authHeaders } from '/imports/api/config.js';
import lodash from 'lodash';
_ = lodash;

export function logoutUser() {
    // var customer = Customers.findOne({ 'users.currentlyLoggedIn': true });
    var customer = Customers.find().fetch();  //returns undefined
	console.log('logout for customer ', customer);

as you can see below: the data is in mongo server side:

export const Customers = new Mongo.Collection('customers');


David Weldon [wrote a post] ( https://dweldon.silvrback.com/common-mistakes) about this that I have found very helpful. Basically JavaScript doesn’t block on method execution, so the browser executes your call to Mongo before the data has reached the client, resulting in a null result.
David suggests some helpful solutions, but theTLDR version is to just check for a null result before calling the returned object.

Hope that helps!


Thank you, the difference here is that this is server side code and that one is sync right?

Verstuurd vanaf mijn iPhone


This works in meteor mongo, but the same code does not work in meteor server side code:

meteor:PRIMARY> db.customers.find(
...    {
...       users: {
...                 $elemMatch: {
...                      currentlyLoggedIn:true
...                 }
...       }
...    }
... )
{ "_id" : "WiQFA8MaYW66DRYKY", "name" : "Shell", "users" : [ { "name" : "John", "group" : "manager", "currentlyLoggedIn" : true, "country" : "j" } ] }
export function logoutUser() {
    var customer = Customers.findOne({
        users: {
            $elemMatch: {
                currentlyLoggedIn: true
    console.log('logout for customer ', customer);

Why not? thank you


ok issue solved. Stupid bug in my code… I already deleted all signed in users and therefore the it returned nothing…


Ok cool. Just answering your question above - yes it’s a client - server fix and for some reason I missed the fact that your issue was a server - server issue. Sorry :frowning: