Default client get secret from env vars limits compatibility with cloud runtimes

[zaklein]

Hi there :)

I'm trying to migrate from the faunadb to the fauna Python client. My specific use case involves running an automated process on a platform called Pipedream. I can't initiate the fauna Client, seemingly due to an issue related to the given runtime not supporting the attempt to retrieve the "FAUNA_SECRET" environment variable. To help set the context, here's the Python code I'm running in Pipedream:

from fauna.client import Client
db_client = Client(secret="abc") # actual key redacted

This is leading to the error message:

Traceback (most recent call last):

  File "/nano-py/pipedream/worker.py", line 137, in execute
    user_retval = handler(pd)
                  ^^^^^^^^^^^

  File "/tmp/__pdg__/dist/code/f3f82eb5747d9e59b7038eb7fc82c2dc2557fdccd09bbf910b13851e405e5b35/code.py", line 26, in handler
    db_client = Client(secret=db_secret)
                ^^^^^^^^^^^^^^^^^^^^^^^^

  File "/tmp/__pdg__/dist/python/fauna/client/client.py", line 94, in __init__
    self._set_endpoint(endpoint)

  File "/tmp/__pdg__/dist/python/fauna/client/client.py", line 574, in _set_endpoint
    endpoint = _Environment.EnvFaunaEndpoint()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/tmp/__pdg__/dist/python/fauna/client/utils.py", line 63, in __call__
    os.environ.get(

TypeError: dict.get() takes no keyword arguments

The same code works for me locally (same versions for Python and fauna), so it seems like a Pipedream runtime problem. It'd be great if we could control this default "FAUNA_SECRET" environment variable behaviour to extend the compatibility of fauna across runtime contexts. For example, something like:

client = Client(secret=db_secret, default_key_location=False)

Please let me know if you have any follow up questions.
Thanks very much,
Zach

[marrony]

@zaklein by the stack trace you copied looks like the driver is trying to find FAUNA_ENDPOINT env variable, as a temporary solution can you try to specify endpoint to Client constructor and see if it helps:

from fauna.client import Client
db_client = Client(secret="abc", endpoint="https://db.fauna.com")