Chapter 4. API requests in various languages

--header "Accept:application/json" \
--header "Content-Type:application/json"

$ json_verify < file.json

#!/usr/bin/ruby

require 'rest-client'
require 'json'

url = 'https://satellite.example.com/api/v2/'
katello_url = "#{url}/katello/api/v2/"

$username = '_My_User_Name_'
$password = '_My_Password_'

org_name = "_My_Organization_"
environments = [ "Development", "Testing", "Production" ]

# Performs a GET by using the passed URL location
def get_json(location)
  response = RestClient::Request.new(
    :method => :get,
    :url => location,
    :user => $username,
    :password => $password,
    :headers => { :accept => :json,
    :content_type => :json }
  ).execute
  JSON.parse(response.to_str)
end

# Performs a POST and passes the data to the URL location
def post_json(location, json_data)
  response = RestClient::Request.new(
    :method => :post,
    :url => location,
    :user => $username,
    :password => $password,
    :headers => { :accept => :json,
    :content_type => :json},
    :payload => json_data
  ).execute
  JSON.parse(response.to_str)
end

# Creates a hash with ids mapping to names for an array of records
def id_name_map(records)
  records.inject({}) do |map, record|
    map.update(record['id'] => record['name'])
  end
end

# Get list of existing organizations
orgs = get_json("#{katello_url}/organizations")
org_list = id_name_map(orgs['results'])

if !org_list.has_value?(org_name)
  # If our organization is not found, create it
  puts "Creating organization: \t#{org_name}"
  org_id = post_json("#{katello_url}/organizations", JSON.generate({"name"=> org_name}))["id"]
else
  # Our organization exists, so let's grab it
  org_id = org_list.key(org_name)
  puts "Organization \"#{org_name}\" exists"
end

# Get list of organization's lifecycle environments
envs = get_json("#{katello_url}/organizations/#{org_id}/environments")
env_list = id_name_map(envs['results'])
prior_env_id = env_list.key("Library")

# Exit the script if at least one life cycle environment already exists
environments.each do |e|
  if env_list.has_value?(e)
    puts "ERROR: One of the Environments is not unique to organization"
    exit
  end
end

 # Create life cycle environments
environments.each do |environment|
  puts "Creating environment: \t#{environment}"
  prior_env_id = post_json("#{katello_url}/organizations/#{org_id}/environments", JSON.generate({"name" => environment, "organization_id" => org_id, "prior_id" => prior_env_id}))["id"]
end

#!/usr/bin/ruby

require 'apipie-bindings'

org_name = "_My_Organization_"
environments = [ "Development", "Testing", "Production" ]

# Create an instance of apipie bindings
@api = ApipieBindings::API.new({
  :uri => 'https://satellite.example.com/',
  :username => 'admin',
  :password => 'changeme',
  :api_version => 2
})

# Performs an API call with default options
def call_api(resource_name, action_name, params = {})
  http_headers = {}
  apipie_options = { :skip_validation => true }
  @api.resource(resource_name).call(action_name, params, http_headers, apipie_options)
end

# Creates a hash with IDs mapping to names for an array of records
def id_name_map(records)
  records.inject({}) do |map, record|
    map.update(record['id'] => record['name'])
  end
end

# Get list of existing organizations
orgs = call_api(:organizations, :index)
org_list = id_name_map(orgs['results'])

if !org_list.has_value?(org_name)
  # If our organization is not found, create it
  puts "Creating organization: \t#{org_name}"
  org_id = call_api(:organizations, :create, {'organization' => { :name => org_name }})['id']
else
  # Our organization exists, so let's grab it
  org_id = org_list.key(org_name)
  puts "Organization \"#{org_name}\" exists"
end

# Get list of organization's life cycle environments
envs = call_api(:lifecycle_environments, :index, {'organization_id' => org_id})
env_list = id_name_map(envs['results'])
prior_env_id = env_list.key("Library")

# Exit the script if at least one life cycle environment already exists
environments.each do |e|
  if env_list.has_value?(e)
    puts "ERROR: One of the Environments is not unique to organization"
    exit
  end
end

 # Create life cycle environments
environments.each do |environment|
  puts "Creating environment: \t#{environment}"
  prior_env_id = call_api(:lifecycle_environments, :create, {"name" => environment, "organization_id" => org_id, "prior_id" => prior_env_id })['id']
end

#!/usr/bin/python3

import json
import sys

try:
    import requests
except ImportError:
    print("Please install the python-requests module.")
    sys.exit(-1)

# URL to your Satellite Server
URL = "https://satellite.example.com"
FOREMAN_API = f"{URL}/api/"
KATELLO_API = f"{URL}/katello/api/"
POST_HEADERS = {'content-type': 'application/json'}
# Default credentials to login to Satellite 6
USERNAME = "admin"
PASSWORD = "changeme"
# Ignore SSL for now
SSL_VERIFY = False

# Name of the organization to be either created or used
ORG_NAME = "MyOrg"
# Name for life cycle environments to be either created or used
ENVIRONMENTS = ["Development", "Testing", "Production"]


def get_json(location):
    """
    Performs a GET by using the passed URL location
    """
    r = requests.get(location, auth=(USERNAME, PASSWORD), verify=SSL_VERIFY)
    return r.json()


def post_json(location, json_data):
    """
    Performs a POST and passes the data to the URL location
    """
    result = requests.post(
        location,
        data=json_data,
        auth=(USERNAME, PASSWORD),
        verify=SSL_VERIFY,
        headers=POST_HEADERS
    )
    return result.json()


def main():
    """
    Main routine that creates or re-uses an organization and
    life cycle environments.
    If life cycle environments already
    exist, exit out.
    """

    # Check if our organization already exists
    org = get_json(f"{FOREMAN_API}/organizations/{ORG_NAME}")

    # If our organization is not found, create it
    if org.get('error', None):
        org_id = post_json(
            f"{FOREMAN_API}/organizations/",
            json.dumps({"name": ORG_NAME})
        )["id"]
        print("Creating organization:\t" + ORG_NAME)
    else:
        # Our organization exists, so let's grab it
        org_id = org['id']
        print(f"Organization '{ORG_NAME}' exists.")

    # Now, let's fetch all available life cycle environments for this org...
    envs = get_json(
        f"{KATELLO_API}/organizations/{org_id}/environments/"
    )

    # ...and add them to a dictionary, with respective 'Prior' environment
    prior_env_id = 0
    env_list = {}
    for env in envs['results']:
        env_list[env['id']] = env['name']
        prior_env_id = env['id'] if env['name'] == "Library" else prior_env_id

    # Exit the script if at least one life cycle environment already exists
    if all(environment in env_list.values() for environment in ENVIRONMENTS):
        print("ERROR: One of the Environments is not unique to organization")
        sys.exit(-1)

    # Create life cycle environments
    for environment in ENVIRONMENTS:
        new_env_id = post_json(
            f"{KATELLO_API}/organizations/{org_id}/environments/",
            json.dumps({
                "name": environment,
                "organization_id": org_id,
                "prior": prior_env_id
            })
        )["id"]

        print("Creating environment:\t" + environment)
        prior_env_id = new_env_id


if __name__ == "__main__":
    main()

#!/usr/bin/env python3

import json
import sys

try:
    import requests
except ImportError:
    print("Please install the python-requests module.")
    sys.exit(-1)

HOSTNAME = "satellite.example.com"
# URL for the API to your Satellite Server
FOREMAN_API = f"https://{HOSTNAME}/api/"
KATELLO_API = f"https://{HOSTNAME}/katello/api/v2/"

POST_HEADERS = {'content-type': 'application/json'}
# Default credentials to login to Satellite 6
USERNAME = "admin"
PASSWORD = "password"
# Ignore SSL for now
SSL_VERIFY = False
#SSL_VERIFY = "./path/to/CA-certificate.crt" # Put the path to your CA certificate here to allow SSL_VERIFY


def get_json(url):
    # Performs a GET by using the passed URL location
    r = requests.get(url, auth=(USERNAME, PASSWORD), verify=SSL_VERIFY)
    return r.json()

def get_results(url):
    jsn = get_json(url)
    if jsn.get('error'):
        print("Error: " + jsn['error']['message'])
    else:
        if jsn.get('results'):
            return jsn['results']
        elif 'results' not in jsn:
            return jsn
        else:
            print("No results found")
    return None

def display_all_results(url):
    results = get_results(url)
    if results:
        print(json.dumps(results, indent=4, sort_keys=True))

def display_info_for_hosts(url):
    hosts = get_results(url)
    if hosts:
        print(f"{'ID':10}{'Name':40}{'IP':30}{'Operating System':30}")
        for host in hosts:
            print(f"{str(host['id']):10}{host['name']:40}{str(host['ip']):30}{str(host['operatingsystem_name']):30}")

def display_info_for_subs(url):
    subs = get_results(url)
    if subs:
        print(f"{'ID':10}{'Name':90}{'Start Date':30}")
        for sub in subs:
            print(f"{str(sub['id']):10}{sub['name']:90}{str(sub['start_date']):30}")

def main():
    host = HOSTNAME
    print(f"Displaying all info for host {host} ...")
    display_all_results(FOREMAN_API + 'hosts/' + host)

    print(f"Displaying all facts for host {host} ...")
    display_all_results(FOREMAN_API + f'hosts/{host}/facts')

    host_pattern = 'example'
    print(f"Displaying basic info for hosts matching pattern '{host_pattern}'...")
    display_info_for_hosts(FOREMAN_API + 'hosts?per_page=1&search=name~' + host_pattern)

    print(f"Displaying basic info for subscriptions")
    display_info_for_subs(KATELLO_API + 'subscriptions')

    environment = 'production'
    print(f"Displaying basic info for hosts in environment {environment}...")
    display_info_for_hosts(FOREMAN_API + 'hosts?search=environment=' + environment)


if __name__ == "__main__":
    main()