UUID createRecord Example

controllers.application\.js

import Controller from '@ember/controller';
import { recordIdentifierFor } from '@ember-data/store';
import { inject as service } from '@ember/service';

export default class ApplicationController extends Controller {
  @service store;
  
  twiddles = this.store.peekAll('twiddle')
}

models.twiddle\.js

import Model, { attr } from '@ember-data/model';

export default class extends Model {
  @attr name;
}

router\.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('new');
  this.route('single', { path: ':id' });
});

export default Router;

routes.new\.js

import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';
import { recordIdentifierFor } from '@ember-data/store';

export default class extends Route {
	@service router;
  @service store;
  
  beforeModel() {
    const record = this.store.createRecord('twiddle');
  	const identifier = recordIdentifierFor(record);
    record.id = identifier.lid;
  	this.router.transitionTo('single', record.id);
  }
}

routes.single\.js

import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';

export default class extends Route {
	@service store;
  
  model(params) {
    const record = this.store.peekRecord('twiddle', params.id);
  	return record;
  }
}

templates.application\.hbs

<h1>Welcome to Twiddles</h1>
<br>
<ul>
  {{#each this.twiddles as |twiddle|}}
  <li>
    <LinkTo
      @routeN="single"
      @model={{twiddle.id}}
     >{{twiddle.name}}</LinkTo>
  </li>
  {{else}}
    <p>
      No Twiddles Yet:
      <LinkTo @route="new">Create one?</LinkTo>
    </p>
  {{/each}}
  {{#if this.twiddles.length}}
    <li><LinkTo @route="new">Create A Twiddle</LinkTo></li>
  {{/if}}
</ul>
<br>
{{outlet}}
<br>
<br>

templates.single\.hbs

<h2>Twiddle ID {{@model.id}}</h2>

Name: <Input @value={{@model.name}}/>

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0",
    "ember-data": "3.18.0"
  }
}