Authentication with an Express Backend

I have been running into all kinds of wall trying to implement even the most basic authentication example using an express server and a mongodb database.

I can’t seem to find a good example using ember-cli and express as the authentication backend server.

Specifically I tried getting the ember-simple-auth and 1ember-simple-auth-tokenbut every time the login action tries to authenticate it callslocalhost:4200/autheven though I've set the host in the adapterlocalhost:3000and set the namespace toapi/v1`

Is there a good example of grouping ember-cli with express to authenticate?