Anton Vynogradenko Restuta

Keybase proof

I hereby claim:

I am restuta on github.
I am restuta (https://keybase.io/restuta) on keybase.
I have a public key ASDPbUkAXpS7m7MrLZeRf83VBDVZqJaQe6ycN-pfoiJSCQo

To claim this, I am signing this object:

Base PRs

Stacked on top of this PR

Ip Ranges

Sometimes it's useful to know what IP ranges our servers are operating in. Since we run on Heroku, it's a little complicated. However, Heroku runs on AWS, which has this page dedicated to IP Ranges by Region.

Heroku recommends using this to identify which region are bing in use. If dynos are run in common spaces in US region, we can look up information about this region using Heroku's API:

using httpie:

 http https://api.heroku.com/regions/us "Accept:application/vnd.heroku+json; version=3"

	import {
	percentAmount,
	generateSigner,
	signerIdentity,
	createSignerFromKeypair,
	} from '@metaplex-foundation/umi';
	import { mplToolbox, setComputeUnitPrice } from '@metaplex-foundation/mpl-toolbox';
	import {
	TokenStandard,
	createAndMint,

	import * as O from 'rxjs';

	const delay = ms => new Promise((resolve) => setTimeout(() => resolve(ms), ms));

	O.from([1,2,3])
	.pipe(
	O.map(x => O.defer(() => delay(1000))),
	O.mergeAll(1)
	).subscribe(x => console.log(x))

	// map, reduce, pipe in 3 minutes

	const reduce = (reducer, defaultAcc, list) => {
	let acc = defaultAcc

	for(let item of list) {
	acc = reducer(acc, item)
	}

	return acc

	/**
	* author: tourist
	* created: 08.08.2020 17:11:40
	**/
	#include <bits/stdc++.h>

	using namespace std;

	template <typename T>
	class graph {

	// z-score
	const { mean, deviation } = require('d3-array')

	const zscore = input => {
	const arrMean = mean(input)
	// here the n-1 : http://duramecho.com/Misc/WhyMinusOneInSd.html
	const arrDeviation = deviation(input)
	return input.map(i => ({
	zscore: (i - arrMean) / arrDeviation,
	item: i,

	const R = require('ramda')

	const numbers = [1, 2, 8, 9]

	const transducer = R.compose(
	R.filter(x => {
	console.log('filter', x)
	return x > 3
	}),
	R.map(x => {

	import cleanStack from 'clean-stack';

	// dims non-useful log lines in stack traces
	const neatStack = (colorize, stack) => {
	// add parts of stack trace lines here that should be ignored
	const regexParts = [
	'(node_modules)',
	'(WEBPACK_IMPORTED)',
	'(next_tick.js)',
	'(domain.js)',