def build_audio_response(url):
    return {'version': '1.01', 'response': {'directives': [{'type':
        'AudioPlayer.Play', 'playBehavior': 'REPLACE_ALL', 'audioItem': {
        'stream': {'token': '12345', 'url': url, 'offsetInMilliseconds': 0}
        }}], 'shouldEndSession': True}}

def handle_session_end_request():
    return {'version': '1.0', 'response': {'shouldEndSession': True}}

def play_music(intent, session):
    url = 'https://s3-eu-west-1.amazonaws.com/bucket/filename.mp3'
Simplest example for streaming audio with Alexa