orionsdk-python: 400 Client Error: Specified cast is not valid

Hi Guys,

Im getting the following error when trying use the Python class to add a node to NPM that uses SNMPv3;

[mw@ansible-001 orion]$ python add_node.py
Add an SNMP v3 node:
/usr/lib/python2.7/site-packages/requests/packages/urllib3/connection.py:340: SubjectAltNameWarning: Certificate for solarwinds-orion has no `subjectAltName`, falling back to check for a `commonName` for now. This feature is being removed by major browsers and deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 for details.)
  SubjectAltNameWarning
Adding node 10.116.26.80... Traceback (most recent call last):
  File "add_node.py", line 138, in <module>
    main()
  File "add_node.py", line 96, in main
    results = swis.create('Orion.Nodes', **Orion_Nodes)
  File "/usr/lib/python2.7/site-packages/orionsdk/swisclient.py", line 34, in create
    "Create/" + entity, properties).json()
  File "/usr/lib/python2.7/site-packages/orionsdk/swisclient.py", line 59, in _req
    resp.raise_for_status()
  File "/usr/lib/python2.7/site-packages/requests/models.py", line 909, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Specified cast is not valid. for url: https://solarwinds-orion:17778/SolarWinds/InformationService/v3/Json/Create/Orion.Nodes

This is my python script, its just to get a feel for the NPM API and this Python class:

[me@ansible-001 orion]$ cat add_node.py
from __future__ import print_function
import re
import requests
from orionsdk import SwisClient


def main():
   npm_server = 'SolarWinds-Orion'
   username = 'sw-user'
   password = 'sw-pass'


   swis = SwisClient(npm_server, username, password, verify="SolarWinds-Orion.pem")

   # Only need one of [DisplayName, Caption, NodeName]
   Orion_Nodes = {
      'DisplayName': "cpe",
      'Description': "cpe",
      'NodeDescription': "my cpe",
      'Location': "Lab",
      'UnManaged': False,
      'Allow64BitCounters': True,
      'ObjectSubType': "SNMP",
      'EngineID': 1,
      'IPAddress': "10.116.26.80",
      'SNMPVersion': '3',
      'SNMPV3Username': "snmpv3-user",
      'SNMPV3PrivMethod': "AES128",
      'SNMPV3PrivKeyIsPwd': True,
      'SNMPV3PrivKey': "snmpv3-priv-key",
      'SNMPV3AuthKey': "snmpv3-auth-key",
      'SNMPV3AuthMethod': "MD5",
      'SNMPV3AuthKeyIsPwd': True
   }

   print("Add an SNMP v3 node:")
   print("Adding node {}... ".format(Orion_Nodes['IPAddress']), end="")
   results = swis.create('Orion.Nodes', **Orion_Nodes)
   print("DONE!")

if __name__ == '__main__':
   main()

This node is actually added to SNMP however all the SNMPv3 details are missing, as per this screenshot:

This is on Orion Platform 2017.1, NPM 12.1, I’m using Python 2.7.5. I can add the device manually through the web GUI using SNMPv3 without issue. I can also add the device using SNMP v2c via the GUI and API. It is just SNMPv3 via the API that is not working.

I can open a support case on the SW site too if that helps?

Please let me know what further info I can provide to help diagnose this issue.