Empty string answers now return None 👍

[ethanahlquist]

What's New?

I added a quick check to see if the NLP returns an empty string to the answer field. Instead return 'None' when this occurs.

Fixes #198

Type of change (pick-one)

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

I ran the following request, which had initially contained an empty answer:

curl --location --request POST 'localhost:8080/ask' --header 'Content-Type: application/json' --data-raw '{ "question": "How would I see Dr. Ventura now?" }'

Now, it returns:

{
  "answer": "I'm sorry, I understand your question but was unable to find an answer. Please try another question.",
  "session": "SOME_NEW_TOKEN"
}

Checklist (check-all-before-merge)

formatting help: - [x] means "checked' and - [ ] means "unchecked"

• [x] I documented my code according to the Google Python Style Guide

• [ ] I ran ./build_docs.sh and the docs look fine

• [ ] I ran ./type_check.sh and got no errors

• [x] I ran ./format.sh because it automatically cleans my code for me 😄

• [ ] I ran ./lint.sh to check for what "format" missed

• [ ] I added my tests to the /tests directory

• [ ] I ran ./run_tests.sh and all the tests pass

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!

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