Invalid `env` causes all requests to fail

[alexbeattie42]

Having an invalid env with apitally middleware causes all fastapi requests to fail.
Related: #160

Reproduction

Using the following value will reproduce the issue:

app.add_middleware(
        ApitallyMiddleware,
        client_id=settings.apitally_client_id,
        env=1234,
    )

Issue

Setting the env to a type other than str type causes the following error (also None).

  File ".venv/lib/python3.13/site-packages/apitally/client/client_base.py", line 56, in __init__
    if re.match(r"^[\w-]{1,32}$", env) is None:
       ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/lib/python3.13/re/__init__.py", line 167, in match
    return _compile(pattern, flags).match(string)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
TypeError: expected string or bytes-like object, got 'int'

Mypy will complain about doing this, but there isn't anything preventing the consumer from trying.
The re.match is expecting a str type and when it gets int it throws an exception.

Solution

An invalid env should be logged as an error, but not cause a 500 error which prevents any requests from being processed.

[itssimon]

Thanks for reporting this. Fixed!