Marcus Christie created AIRAVATA-3510:
-----------------------------------------
Summary: Django REST API: return a 404 when unable to load
application interface because it doesn't exist
Key: AIRAVATA-3510
URL: https://issues.apache.org/jira/browse/AIRAVATA-3510
Project: Airavata
Issue Type: Bug
Components: Django Portal
Reporter: Marcus Christie
Assignee: Marcus Christie
We get several spurious error emails relating to failure to load an application
interface. This sort of error email message is typical:
```
AiravataSystemException
AiravataSystemException(airavataErrorType=2, message='Error while retrieving
application interface. More info : getApplicationInterface failed: unknown
result')
Django Version: 2.2.23
Exception Type: AiravataSystemException
Exception Value:
AiravataSystemException(airavataErrorType=2, message='Error while retrieving
application interface. More info : getApplicationInterface failed: unknown
result')
Exception Location:
/var/www/portals/django-seagrid/venv/lib64/python3.6/site-packages/airavata/api/Airavata.py
in recv_getApplicationInterface, line 7247
Python Executable: /var/www/portals/django-seagrid/venv/bin/python
Python Version: 3.6.8
Python Path:
['/usr/lib64/python36.zip',
'/usr/lib64/python3.6',
'/usr/lib64/python3.6/lib-dynload',
'/var/www/portals/django-seagrid/venv/lib64/python3.6/site-packages',
'/var/www/portals/django-seagrid/airavata-django-portal',
'/var/www/portals/django-seagrid/venv/lib/python3.6/site-packages',
'/var/www/portals/django-seagrid/venv/lib64/python3.6/site-packages/IPython/extensions']
Server time: Tue, 14 Sep 2021 13:34:38 +0000
```
This is because the application no longer exists but an experiment still
references it. The REST API and error messaging could be cleaned up by first
checking if the interface exists and then returning a proper 404 when an
interface no longer exists.
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