Unable to import logger

[fjahr]

I am trying to use the logger, just like in the example given here: https://firebase.google.com/docs/functions/writing-and-viewing-logs?gen=2nd

But when I try to deploy the function I get the following error message:

    from firebase_functions import logger
ImportError: cannot import name 'logger' from 'firebase_functions'

I am using the latest version (0.1.2) but indeed when I go into the venv folder where it is installed I don't see the logger file included. Any idea what is going on?

[matthewnaples]

I'm also having this problem. The following code is broken, but when removing the logger import and logger.info(...) call, the code works and successfully deploys

from firebase_functions import https_fn, logger

from firebase_admin import initialize_app, firestore

initialize_app()


@https_fn.on_request()
def write_data(req: https_fn.Request) -> https_fn.Response:
    """This function will take the request and write its data to cloud firestore in a collection called 'submissions'"""
    #log that the function has been called
    logger.info("write_data function called")

    # Get the data from the request
    data = req.get_json()

    # Get the firestore client
    firestore_client = firestore.client()

    # Write the data to the firestore
    firestore_client.collection("submissions").add(data)

    # Return a response
    return https_fn.Response("OK", 200)

[jaclar]

Seems like the logger feature was merged after the last release (0.1.2): #121
So I hope it is part of the next release.

Anyway, strange that it is already mentioned in the official documentation.

[MWals]

Too bad that the logger can not be imported in version 0.12, looking forward to the next release.

Meanwhile, this is my workaround to get logs inside the emulator:

import logging

logger = logging.getLogger('cloudfunctions.googleapis.com%2Fcloud-functions')
logger.setLevel(logging.INFO)
logger.addHandler(logging.StreamHandler())


@https_fn.on_request()
def text_fxn(req: https_fn.Request) -> https_fn.Response:
logger.log(msg='Log from function"', level=logging.INFO)
    return https_fn.Response("OK", status=200)

Output:

i  functions: Beginning execution of "us-central1-on_packing_box_closed"
>  Log from function
i  functions: Finished "us-central1-on_packing_box_closed" in 1.831333ms

[sandpat]

I think you can just copy paste the following file in your code for time being:

https://raw.githubusercontent.com/firebase/firebase-functions-python/3662d07c0f84cc19fdf5d548553fb9c7b5dd00d7/src/firebase_functions/logger.py

[TRON-N]

I came here looking for a solution to this issue, but it seems to be fixed in 0.2.0 #167. Thanks Everyone!

[exaby73]

Since this issue is fixed in the latest version (sorry about that), I feel safe to close this issue. Thanks for your patience everyone :)