Requesting Twitter Timeline Feeds


#1

I am trying to show my Twitter Feeds for iOS Swift App. The new API needs OAuth. When I go to https://dev.twitter.com/rest/tools/console and Authorize, it works. How do I make a JSON Call in Swift?
A Get Response https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=tikaDotMe&count=20 returns:

{“errors”:[{“message”:“Bad Authentication data”,“code”:215}]}

Is there something like?
…&outh_code=something

Went through the documentation a couple of times but that does not explain me anything.