lajosdeme

Smart contract development principles

Principles for securely building smart contract systems collaboratively or individually.

Security first

The number one thing we are focusing on and optimizing, before anything else, is security. This means that before adding a line of code both the granular and the system-wide implications of that change must be deeply understood.

It is recommended to always use tools like the Olympix VSCode extension, and regularly run security analyzers like Mythril, Slither, etc.

The whole system must be regularly examined for complex, multi-step attacks like oracle or price manipulation.

Token	Feature	Known Vulnerabilities	Resources	Examples
ERC20	Allowance	Double withdrawal (front-running)

Using an Access Token for the first time

Follow the instructions on Github to Create an Access Token in Github

Configure Git to use the osxkeychain

By default, git credentials are not cached so you need to tell Git if you want to avoid having to provide them each time Github requires you to authenticate. On Mac, Git comes with an “osxkeychain” mode, which caches credentials in the secure keychain that’s attached to your system account.

You can tell Git you want to store credentials in the osxkeychain by running the following:-

See also, http://libraryofalexandria.io/cgo/

Using Go `cgo`

cgo has a lot of trap.
but Not "C" pkg also directory in $GOROOT/src. IDE's(vim) Goto command not works.

So, Here collect materials.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Tinder API documentation

Note: this was written in April/May 2014 and the API may has definitely changed since. I have nothing to do with Tinder, nor its API, and I do not offer any support for anything you may build on top of this. Proceed with caution

http://rsty.org/

I've sniffed most of the Tinder API to see how it works. You can use this to create bots (etc) very trivially. Some example python bot code is here -> https://gist.github.com/rtt/5a2e0cfa638c938cca59 (horribly quick and dirty, you've been warned!)

	osascript -e 'tell application "iOS Simulator" to quit'
	osascript -e 'tell application "Simulator" to quit'
	xcrun simctl erase all