Alexandre Yukio Harano ayharano

FastAPI and Uvicorn Logging

When running FastAPI app, all the logs in console are from Uvicorn and they do not have timestamp and other useful information. As Uvicorn applies python logging module, we can override Uvicorn logging formatter by applying a new logging configuration.

Meanwhile, it's able to unify the your endpoints logging with the Uvicorn logging by configuring all of them in the config file log_conf.yaml.

Before overriding:

uvicorn main:app --reload

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print("hello world!")

	'''
	Example of IAM Authentication to Postgres RDS from Python and SQLAlchemy. Uses SQLAlchemy events to
	run a callback just before making a db connection and adding it to the internal pool. The callback
	sets the connection parameters including the password/token.

	https://docs.sqlalchemy.org/en/14/core/events.html#sqlalchemy.events.DialectEvents.do_connect
	https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html
	https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.Connecting.Python.html
	https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/rds.html#RDS.Client.generate_db_auth_token

	{
	"Version": "2012-10-17",
	"Statement": [
	{
	"Effect": "Deny",
	"Action": [
	"logs:CreateLogGroup",
	"logs:CreateLogStream",
	"logs:PutLogEvents"
	],