[BUG] POST to /login route causes 500 error

[alexjball]

Describe the bug
Calling the /login route on the production flask app using docker-compose causes a 500 error with these error logs:

api_1  | [2021-08-21 15:59:03 +0000] [9] [DEBUG] POST /api/v1/auth/login  
api_1  | [2021-08-21 15:59:03,488] ERROR in app: Exception on /api/v1/auth
/login [POST]                                                             
api_1  | Traceback (most recent call last):                               
api_1  |   File "/usr/local/lib/python3.8/site-packages/sqlalchemy/util/_c
ollections.py", line 1020, in __call__                                    
api_1  |     return self.registry[key]                                    
api_1  | KeyError: 140032363771712                                        
api_1  |                                                                  
api_1  | During handling of the above exception, another exception occurre
d:                                                                        

api_1  |   File "/usr/local/lib/python3.8/site-packages/flask_sqlalchemy/__init__.py", line 933, in apply_driver_hacks
api_1  |     if sa_url.drivername.startswith('mysql'):
api_1  | AttributeError: 'NoneType' object has no attribute 'drivername'

To Reproduce
Steps to reproduce the behavior:

1. Start system with docker-compose up -d
2. Post to login route (inside or outside the api container)

curl -X POST -d '{"email": "[email protected]", "password": "password"}' -H 'Content-Type: application/json' localhost:5000/api/v1/auth/login

Calling the / route works, as does calling these routes with the test client.

Expected behavior
4XX error since the user doesn't exist

[alexjball]

SQLALCHEMY_DATABASE_URI was not being set in the config. The production app pulls from a different env variable. Switching to the dev environment fixes the issue. Will update the compose file to run the flask app in dev mode