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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

Logging setup for FastAPI

This logging setup configures Structlog to output pretty logs in development, and JSON log lines in production.

Then, you can use Structlog loggers or standard logging loggers, and they both will be processed by the Structlog pipeline (see the hello() endpoint for reference). That way any log generated by your dependencies will also be processed and enriched, even if they know nothing about Structlog!

Requests are assigned a correlation ID with the asgi-correlation-id middleware (either captured from incoming request or generated on the fly). All logs are linked to the correlation ID, and to the Datadog trace/span if instrumented. This data "global to the request" is stored in context vars, and automatically added to all logs produced during the request thanks to Structlog. You can add to these "global local variables" at any point in an endpoint with `structlog.contextvars.bind_contextvars(custom

An Opinionated Comparison of Software Design Approaches in Haskell

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>WebGPU Audio</title>
	</head>
	<body>
	<button type="button" id="play">Play</button>
	<script type="module">
	const code = `

	' ASR rules bypass creating child processes
	' https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction
	' https://www.darkoperator.com/blog/2017/11/11/windows-defender-exploit-guard-asr-rules-for-office
	' https://www.darkoperator.com/blog/2017/11/6/windows-defender-exploit-guard-asr-vbscriptjs-rule

	Sub ASR_blocked()
	Dim WSHShell As Object
	Set WSHShell = CreateObject("Wscript.Shell")
	WSHShell.Run "cmd.exe"
	End Sub

	for (plugin in ["ant",
	"artifactdeployer",
	"build-failure-analyzer",
	"build-name-setter",
	"build-pipeline-plugin",
	"build-timeout",
	"claim",
	"clone-workspace-scm",
	"cobertura",
	"collapsing-console-sections",

	import lldb

	def is_slice_type(t, internal_dict):
	return t.name.startswith("[]") or t.name.startswith("[dynamic]")

	class SliceChildProvider:
	def __init__(self, val, dict):
	self.val = val

	def num_children(self):

	-- This function is designed to duplicate all live INSERTS/UPDATES/DELETES from one table (referred to as "source_table_name"
	-- to a second partitioned table (referred to as "destination_table_name"). The function should be set to trigger after insert/
	-- update/delete on the source table.

	-- This function is designed to be leveraged for partitioned table migration through this method:
	-- 1) Create an empty partitioned copy of the "source_table_name". Alter primary key as necessary, as partitioned Postgres
	-- tables do not support unique/primary keys not included in the partition key.
	-- 2) Create the following function, and attach it as a trigger to "source_table_name". At this point, incoming new DML is
	-- being copied successfully to the partitioned table, so only historical data will need to be backfilled.
	-- 3) Target rows in "source_table_name" with an updated_at value BEFORE the trigger was attached, and backfill them into

	/*
	Package fan is a little concurrent io experiment.

	Example Use Case
	----------------

	You have a function that takes a single io.Reader as an argument. You would like
	to pass that reader to several processing functions. You could just make the
	function accept an io.ReadSeeker, invoke each function serially in a for loop,
	seeking after each call. But that's not cool.

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	69484825595272003071580933663162309410919484264168162456415987660087356646694839288039098048397766765190012006438103559476605
	88069969501403804546943579852833051109937002040256969349389081744254318024154760523379227341047257631357870025582656575655762
	80287299653975203684260833623532172260301953877104948974634491969795223647429108528213960088039791160860481243853022341993839
	24991718535415280310113584497118196223057217585054424117851185779066465713336737557959912721815816999403404005977799509009387
	9410563589763257