SO Example: POSTing Data in Ember

components.some-submitting-component.js

import Ember from 'ember';
import fetch from 'fetch';

export default Ember.Component.extend({
  actions: {
    submit() {
      const name = this.get("name");
      
      return fetch('/whatever-endpoint', {
        method: 'POST',
        body: JSON.stringify({ name })
      })
      .catch(e => {
        alert('There was an error (expected)');
      });
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

{{some-submitting-component}}

templates.components.some-submitting-component.hbs

{{input value=name}}

<button {{action 'submit'}}>
  Submit!
</button>

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
    "ember-data": "3.2.0",
    "ember-fetch": "latest"
  }
}