ddpserver | Server endpoint for Meteor 's DDP protocol in C | Web Framework library

You export default from './collections_img.js'

But you import it like this:

I believe Meteor.defer is more suited to what you're trying to achieve here.

Example:

The error on the console is a reference error which states that document is not defined. How are you inserting a new customer? You did not specify it from your code. The ideal way to go is create a customer object using values from the form fields and when you call the 'customer.insert' method;you pass it the customer object. const customer = { name: } //call the method passing in the object Meteor.call('customer.insert' , customer ) On the 'customer.insert' method on the server side you do an insert in the customer document. Customer.insert(customer)