-form.hbs

<form>
    <label>Youtube Link:
        {{input id="videoID" type="text" placeholder="link" value=youtubeLink}}
    </label>
    <button {{action 'contract' youtubeLink}}>Play</button>
    
</form>

route.js

import Ember from 'ember';

export default Ember.Route.extend({
    
    
    
    /*model() {
        //return this.store.findAll('friend');
        
        return true;
    }*/
    
    actions: {
        contract: function(link) {
                console.log(link);
            }
        }
    
    
});