TPwsk

create action

wsk action create script1 script1.js
wsk action create script2 script2.py
wsk action create script3 script3.php
wsk action create expose exposeUrl.js

create and lauch sequence 1

 wsk action create sequence1 --sequence script1,script2,script3 -r
 wsk action invoke sequence1 -r

create url

wsk action create sequence2 --sequence script1,script2,script3,expose --web true
wsk action get sequence2 --url