Async of Swim: Dynamic Segments.

route.js

//In your route
import Route from '@ember/routing/route';
import { task } from 'ember-concurrency';
export default Route.extend({
  model: function (params){
    return {
      blog: this.get('blogTask').perform(params.blog_id)};
  },
  blog: task(function *(blogId){
    let blog = yield this.get('store').findRecord('blog', blogId );
    return blog;
  })
});

router.js

Router.map(function() {
    this.route('blog',{path:"/blog/:blog_id"});
});

template.hbs

//Stays the same
{{#if model.blogTask.isRunning}}
    LOADING...
{{else}}
   {{model.blog.title}}
{{/if}}

blogTask does not exist. The task is ‘blog’