Not able to make the right requests to backend in ember

I am new to ember and javascript.I have to make request to backend api (http://ift.tt/1NS6RkP).But the requests which ember is making is (http://ift.tt/1PeQhl5).Slash is getting removed after PROFILE.How to send the correct request.

adapter.js(profile.js)

import DS from 'ember-data';

export default DS.RESTAdapter.extend({
     namespace: 'users',
    // token:this.store.find('application',token),
    headers:{"Authorization":"token b0fb466a6eac3ad87cd2000580b2192b85ab4"},
    host: 'http://example.com/api'
});

model.js(profile.js )

import DS from 'ember-data';

export default DS.Model.extend({
  dp_url:DS.attr(),
  full_name:DS.attr()
});

Route.js(feed.js)

import Ember from 'ember';

export default Ember.Route.extend({
    model(){
      var inflector = Ember.Inflector.inflector;
      inflector.uncountable('profile');
      return this.store.find('profile',{targetuser:-1});
   }
});

And is there a way in which I give a different name in this.store.find('different Name').As it get attached to the requests I made to backend.