The following code uses Stingray's RESTful API to list all the pools defined on a cluster. The code is written in Python. This example has more extensive comments then the following examples and most of these are applicable to all the examples. This program does a single GET request for the list of pools and then loops through that list, each element of which is a dictionary, and then outputs the pool name.
listpools.py
#! /usr/bin/env python
import requests # The REST Client
import json # For serializing and deserializing JSON
import sys
print "Pools:\n"
url = 'https://stingray.example.com:9070/api/tm/1.0/config/active/pools';
# Setup the session
client = requests.Session()
# Set the Userid and Password. These need to match a UserId and Password for a Stingray user
client.auth = ('admin', 'admin')
# Don't require that the Stingray's certiciate be from a certiticate authority because
# Stingray certificates are self-signed.
client.verify = False
try:
# Do the HTTP GET to get the lists of pools
response = client.get(url)
except requests.exceptions.ConnectionError:
# We weren't able to connect to the Stingray. The most likely reasons for this are that the
# hostname of the Stingray instance is incorrect, or this client doesn't have network access
# to the Stingray instance or to port 9070 on the Stingray instance, or the RESTful API could
# be disabled on the Stingray instance, or the Stingray instance isn't using the default port.
print "Error: Unable to connect to " + url
sys.exit(1)
data = json.loads(response.content) # Deserialize the JSON response into a dictionary
if response.status_code == 200: # We always expect a 200
# Since we are getting a list of pools we expect the first element to be 'children'
if data.has_key('children'):
# The value for the key 'children' will be a list containing a dictionary for each pool
# with key, 'name', set to the name of the pool and key, 'href', set to the URL of the pool
pools = data['children']
for i, pool in enumerate(pools):
print pool['name'] # This is the name of the pool
else:
print 'Error: No children found'
else:
print "Error getting pool list: URL=%s Status=%d Id=%s: %s" %(url, response.status_code, data['error_id'], data['error_text'])
Running the example
This code was tested with Python 2.7.3 and version 1.1.0 of the requests library.
Run the Python script as follows:
$ listpools.py
Pools:
Pool1
Pool2
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