Strernd’s gists

Strernd / parseErc20Transfer.js

Created June 7, 2021 11:09

Parses an ERC20 Transfer from the Ethereum API.

	const converter = require("hex2dec");
	const Eth = require("ethjs");
	const eth = new Eth(new Eth.HttpProvider(process.env.INFURA));

	async function getERC20TransferByHash(hash) {
	const ethTxData = await eth.getTransactionByHash(hash);
	if (ethTxData === null) throw "TX NOT FOUND";
	if (
	ethTxData.input.length !== 138 \|\|
	ethTxData.input.slice(2, 10) !== "a9059cbb"

Strernd / ibm.js

Created July 11, 2019 12:43

	'use strict';
	const swf = require('serverless-workload-function');
	let cold = true;

	exports.handler = (params) => {
	const options = params \|\| {};
	return swf(options.type \|\| 'hash', options).then(result => {
	const x = { ...result, cold };
	cold = false;
	return x

Strernd / handler.js

Last active May 14, 2019 10:46

	const laconia = require("@laconia/core");
	const api = require("@laconia/adapter-api").apigateway({ inputType: "params" });

	const app = async (event, { }) => {
	console.log(await event);
	return event;
	};

	exports.handler = laconia(api(app));

Strernd / serverless_cost.csv

Created September 6, 2018 08:21

Strernd / AdvertMarket.sol

Last active July 30, 2018 14:57

Contract code for the tutorial on https://medium.com/p/9d2341a80e7d

	pragma solidity ^0.4.24;
	import "openzeppelin-solidity/contracts/ownership/Ownable.sol";

	contract AdvertMarket is Ownable{

	event NewAdvert(uint id, bytes32 meta, uint price, address sender);
	event AdvertChangedOwner(uint id, uint price, address newOwner, uint newPrice);
	event AdvertDataChanged(uint id, bytes32 data);

	uint maxPriceFactor = 2; // max factor the price can increase at owner change

Strernd / voronoi.js

Created January 19, 2018 22:39

	const Voronoi = require( 'voronoi' );
	const _ = require( 'lodash' );
	const canvas = document.getElementById( "canvas" );
	const ctx = canvas.getContext( "2d" );
	const v = new Voronoi();
	const max = {
	x: 800,
	y: 800
	};
	const bbox = {

Strernd / build.js

Created January 19, 2018 22:34

	(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
	const Voronoi = require( 'voronoi' );
	const _ = require( 'lodash' );
	const canvas = document.getElementById( "canvas" );
	const ctx = canvas.getContext( "2d" );
	const v = new Voronoi();
	const max = {
	x: 800,
	y: 800
	};

Strernd / index.html

Last active January 19, 2018 22:36

Strernd / CHP Homework 2

Created December 10, 2016 21:11

Strernd / tutorial 2

Created December 5, 2016 10:38

Bernd Strehl Strernd