Redowan Delowar rednafi

🏠

Working from home

Roving amateur with a flair for words and wires | Software Engineer @Wolt | Writing on rednafi.com

rednafi / cloudSettings

Last active June 17, 2022 19:11

Visual Studio Code Settings Sync Gist

{"lastUpload":"2020-08-20T20:27:31.107Z","extensionVersion":"v3.4.3"}

rednafi / mysql_connection.py

Last active June 17, 2022 09:07

Reusable Class for MySql Connection with Pooling in Python

	import os

	import pymysql
	from DBUtils.PooledDB import PooledDB
	from dotenv import load_dotenv

	MYSQL_CONFIG = {
	"host": "localhost",
	"port": 3306,
	"db": "test_db",

rednafi / _config.yml

Last active October 6, 2023 08:53

	# Welcome to Jekyll!
	#
	# This config file is meant for settings that affect your whole blog.
	#
	# If you need help with YAML syntax, here are some quick references for you:
	# https://learn-the-web.algonquindesign.ca/topics/markdown-yaml-cheat-sheet/#yaml
	# https://learnxinyminutes.com/docs/yaml/

	title: Redowan's Digressions
	description: Sporadic cogitations on software, tech & personal beliefs

rednafi / retry.py

Last active April 5, 2020 09:33

Retry decorator with exponential backoff

	import logging
	import time
	from functools import partial, wraps


	def retry(func=None, exception=Exception, n_tries=5, delay=5, backoff=1, logger=False):
	"""Retry decorator with exponential backoff.

	Parameters
	----------

rednafi / concurrent_hit.py

Last active March 19, 2024 12:52

1000 concurrent API request with ThreadPoolExecutor Python

	import time
	from concurrent.futures import ThreadPoolExecutor
	from functools import wraps

	import requests
	from tqdm import tqdm


	def timeit(method):
	@wraps(method)

rednafi / .env

Last active June 3, 2020 14:52

Pedantic config management using Pydantic

rednafi / calling_async_func.py

Last active June 4, 2020 11:42

Async By Example

	import asyncio
	import time


	async def square_func(n: int) -> int:
	await asyncio.sleep(2)
	print(f"square_func sleeping for 2 seconds")
	return n * n

rednafi / async_redis.py

Created June 7, 2020 06:37

Seems like aioredis isn't being maintained anymore. This uses redis-py in async mode

	import json
	import os
	import sys
	from datetime import timedelta

	import httpx
	import redis
	from dotenv import load_dotenv
	from fastapi import FastAPI
	from asgiref.sync import sync_to_async

rednafi / proxy_pattern_python.py

Last active June 16, 2020 06:55

Using the Proxy design pattern in Python to decouple logging and exception handling from the core logic

	"""
	This can be used as a template to execute Proxy
	design pattern with Python.

	* Get the json response from PostMan API
	url: https://postman-echo.com/get?foo1=bar_1&foo2=bar_2

	* Print the header properties

	* Print the argument properties

rednafi / sqla_dict.py

Last active June 30, 2020 18:03

Python's dict-like custom data structure that can store data in any SQLAlchemy supported database. Uses transaction.

	"""
	This is a self contained custom data structure with dict like
	key-value storage capabilities.

	* Can store the key-value pairs in any sqlalchemy supported db
	* Employs thread safe transactional scope
	* Modular, just change the session_scope to use a different db
	* This example uses sqlite db for demonstration purpose

	The code is inspired by Raymond Hettinger's talk `Build powerful,