Call method on another ddp connection (microservice) gives invoking method error

I’m trying to set up a microservice using DDP-connection in my meteor application. But the code gives me an invoking Method error, which I do not understand.
So what is wrong with my code?

This is my example microservice, which is running on port 3100:

Example microservice

import { Meteor } from 'meteor/meteor';

  "exampleMethod": function(param) {
    return [ 'result' ];

Main application

import { Meteor } from 'meteor/meteor'

var exampleConnection = DDP.connect("http://localhost:3100");

Meteor.defer(function() {'exampleMethod', 'param');

How do I call the method in my main application?

Main application

import React, { Component } from 'react'

export default class Example extends Component {
	handleChange(event) {'exampleMethod', 'param', function(error, result) {
    render { return (<Anything />); }

So with this I would expect the console output of parameter and the result. But this concept doesn’t work. I’m getting an Error invoking Method 'exampleMethod': Method 'exampleMethod' not found [404] error.