How to use cloud stack API Using java / python?

CloudStack API’s can be accessed using

Using Command Line Interface (CLI) CloudMonkey - https://cwiki.apache.org/CLOUDSTACK/cloudstack-cloudmonkey-cli.html

Using Https Requests - http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.0.0-incubating/html-single/API_Developers_Guide/

Using CloudStack Clients - https://github.com/jasonhancock/cloudstack-python-client

We can make two types of Http requests

1. Unauthenticated API Requests using port 8096 (open port 8096 using management UI)
2. Authenticated API Requests using signature

Sample Python code to create Signature

import urllib2
import urllib // to make the url request 
import hashlib              //encode it to http
import hmac
import base64      //encording 

request={}
request['command']='listUsers'
request['response']='xml'
request['apikey']='zdfhgsdhfgseahyg'
secretkey='ghfgfgfg'

>>> request
{'apikey': 'plgWJfZK4gyS3mOMTVmjUVg-X-jlWlnfaUJ9GAbBbf9EdM-kAYMmAiLqzzq1ElZLYq_u38zCm0bewzGUdP66mg', 'command': 'listUsers', 'response': 'json'}

>>>request_url="&".join(["=".join([r,urllib.quote_plus(request[r])]) for r in request.keys()])

>>>sig_url="&".join(["=".join([r.lower(),urllib.quote_plus(request[r]).lower()]) for r in sorted(request.iterkeys())])

>>>sig=urllib.quote_plus(base64.encodestring(hmac.new(secretkey,sig_url,hashlib.sha1).digest()).strip())

>>> req=url+request_url+'&signature='+sig
>>> res=urllib2.urlopen(req)
>>> res.read()