JavaScript How to import by dynamic path with Meteor import dynamic path js,import dynamic path,react import dynamic

This is how I import all collection declarations with methods, fixtures and publications now:

import './news/collection.js';
import './news/methods.js';

if (Meteor.isServer) {
    import './news/server/fixtures.js';
    import './news/server/publications.js';
}

If you add some new collection, you have to write it again:

import './comments/collection.js';
import './comments/methods.js';

if (Meteor.isServer) {
    import './comments/server/fixtures.js';
    import './comments/server/publications.js';
}

When you have tons of collections you have to write it again and again. Eventually for the sake of DRY you would like to write something like this:

let collections = ['news', 'comments', ... 'everything'];

for (let collection of collections) {
  import `./${collection}/collection.js`;
  import `./${collection}/methods.js`;
  if (Meteor.isServer) {
    import `./${collection}/server/fixtures.js`;
    import `./${collection}/server/publications.js`;
  }
}

Now The Unexpected token, expected { error throws.

I searched Meteor documentation and can't belive it: is it really no way to import something by dynamic path with Meteor?

Answer:1

dynamic imports are now supported after yesterday's release of meteor 1.5

I just wrote an article about how to do this and, more importantly, when and why to do this.

https://code.zeroasterisk.com/2017/05/meteor-1-5-bundle-optimization/

TL;DR: import('./my_component') returns a promise, which resolves when the client has it.

before: normal import part of clientside bundle

import PickDates from './PickDates';

after: dynamic import no longer a part of clientside bundle

import Loader from 'react-loader';

// generic loading component to show while transfering section of code
const LoadingComponent = () => <span className="text-muted"><i className="fa fa-refresh" /></span>;
// new version of the component, now: loading --> rendered
const PickDates = Loader({
  // this does the dynamic import, and returns a promise
  loader: () => import('./PickDates'),
  // this is our generic loading display (optional)
  LoadingComponent,
  // this is a delay before we decide to show our LoadingComponent (optional)
  delay: 200,
});
Answer:2

Dynamic imports are not supported. There are many people who would like to do this (myself included), but it's not available yet, either in Meteor or elsewhere, as importing is an ES6 feature

Answer:3

es6 does not support dynamic imports (see Importing modules using ES6 syntax and dynamic path)

however, you can use dynamic importing using CommonJS style requiring in Meteor

so something like this should work:

let collections = ['news', 'comments', ... 'everything'];

for (let collection of collections) {
  require(`./${collection}/collection.js`);
  require(`./${collection}/methods.js`);
  if (Meteor.isServer) {
    require(`./${collection}/server/fixtures.js`);
    require(`./${collection}/server/publications.js`);
  }
}
Answer:4

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