Jian Yuan Lee jianyuan

Computers

13" Macbook Pro 3.3 GHz i7 (late 2016)
Microsoft Surface Book (2016)

Peripherals

Dell up3216q 32" monitor

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Service	Type	RAM	Storage	Limitations
👉 Adaptable	PaaS	256 MB	Non-persistent? (1 GB database storage available)
AWS EC2	IaaS	1 GB		⚠️ Only free for 1 year

	/*
	* DataGrip extension to export results to markdown.
	* The markdown table format is supported by Github and Jira. I haven't tested others.
	*
	* Tested on DataGrip 2016.2.2
	* - Open the File view. View -> Tool Windows -> Files
	* - Activate the "Scratches" tab. You should see "Files", "Scopes", and "Scratches".
	* - Copy this file to Extensions/Database Tools and SQL/data/extractors/Markdown.JavaScript.md.js
	* - Run a query with some results.
	* - Change the export format to Markdown.JavaScript.md.js and click "To Clipboard".

	/**
	* Marlin 3D Printer Firmware
	* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
	*
	* Based on Sprinter and grbl.
	* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or

	import asyncio
	from concurrent import futures
	import functools
	import inspect
	import threading

	from grpc import _server

	def _loop_mgr(loop: asyncio.AbstractEventLoop):