Authenticating to the MAAS API

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MAAS API utilises 0-legged OAuth for authentication. While some endpoints allow anonymous access, others require authenticated requests. This guide provides examples in Python, Ruby, curl, and HTTP for fetching the list of nodes.

Python

The example employs the fades library, but you can also use requests_oauthlib and oauthlib. Replace <MAAS_SERVER_IP> and <API-KEY> with appropriate values.

from oauthlib.oauth1 import SIGNATURE_PLAINTEXT
from requests_oauthlib import OAuth1Session

MAAS_HOST = "http://<MAAS_SERVER_IP>:5240/MAAS"
CONSUMER_KEY, CONSUMER_TOKEN, SECRET = "<API-KEY>".split(":")

maas = OAuth1Session(CONSUMER_KEY, resource_owner_key=CONSUMER_TOKEN, resource_owner_secret=SECRET, signature_method=SIGNATURE_PLAINTEXT)
nodes = maas.get(f"{MAAS_HOST}/api/2.0/machines/", params={"op": "list_allocated"})
nodes.raise_for_status()
print(nodes.json())

Ruby

require 'oauth'
require 'oauth/signature/plaintext'

def perform_API_request(site, uri, key, secret, consumer_key)
    consumer = OAuth::Consumer.new(consumer_key, "", { :site => site, :scheme => :header, :signature_method => "PLAINTEXT"})
    access_token = OAuth::AccessToken.new(consumer, key, secret)
    return access_token.request(:get, uri)
end
response = perform_API_request("http://server:5240/MAAS/api/2.0", "/nodes/?op=list", "<key>", "<secret>", "consumer_key")

cURL

curl --header "Authorization: OAuth oauth_version=1.0, oauth_signature_method=PLAINTEXT, oauth_consumer_key=$API_KEY[1], oauth_token=$API_KEY[2], oauth_signature=&$API_KEY[3], oauth_nonce=$(uuidgen), oauth_timestamp=$(date +%s)" $MAAS_URL/MAAS/api/2.0/users/

HTTPie and fish

set API_KEY (string split : $API_KEY)
http $MAAS_URL/api/2.0/users/ Authorization:"OAuth oauth_version=1.0, oauth_signature_method=PLAINTEXT, oauth_consumer_key=$API_KEY[1], oauth_token=$API_KEY[2], oauth_signature=&$API_KEY[3], oauth_nonce=$(uuidgen), oauth_timestamp=$(date +%s)"

Your API key comprises <consumer_key>:<consumer_token>:<secret>. Use these elements in the respective examples to perform authenticated requests.


Last updated 7 days ago.