Custom input field won't load when empty on Initial App install- How to resolve?

[greynoisebrad]

We recently updated our Splunk App to use the latest SDK, and since then, we've been running into this issue where our custom configuration page (where users enter an API key for our service) fails to load with the below error.  The error seems to indicate that the issue is with the field having no value at the initial install (which has always been the default state).  Any suggestions on how we can address this?

{"messages":[{"type":"ERROR","text":"Unexpected error \"<class 'splunktaucclib.rest_handler.error.RestError'>\" from python handler: \"REST Error [500]: Internal Server Error -- Traceback (most recent call last):\n File \"/opt/splunk/etc/apps/SA-GreyNoise/bin/SA_GreyNoise/splunktaucclib/rest_handler/handler.py\", line 124, in wrapper\n for name, data, acl in meth(self, *args, **kwargs):\n File \"/opt/splunk/etc/apps/SA-GreyNoise/bin/SA_GreyNoise/splunktaucclib/rest_handler/handler.py\", line 303, in _format_response\n masked = self.rest_credentials.decrypt_for_get(name, data)\n File \"/opt/splunk/etc/apps/SA-GreyNoise/bin/SA_GreyNoise/splunktaucclib/rest_handler/credentials.py\", line 203, in decrypt_for_get\n data[field_name] = clear_password[field_name]\nTypeError: 'NoneType' object is not subscriptable\n\". See splunkd.log/python.log for more details."}]}

[Roy_9]

@greynoisebrad Can you take a look at the below doc?

https://github.com/puppetlabs/SplunkTAforPuppetEnterprise/issues/2

Looks like some one has a similar kind of issue and removing passwords.conf fixed the issue for them.

[Roy_9]

@greynoisebrad Hello,

Is your updated app compatible with python3 since we faced similar issues with older version.

Thanks

[VatsalJagani]

@greynoisebrad - It seems like a python error you need to fix in your Add-on. (Maybe because it was using an old syntax which might get changed.)

I hope this helps!! Karma/upvote would be appreciated!!!