itoonx

let imageBuffer = Buffer.from(body.profilePicture.split(',')[1], 'base64');
console.log(imageBuffer);

Jimp.read(imageBuffer, function(err, image) {
  if (err) {
    context.done(err,
      prepareErrorResponse(response, 'Unable to remove EXIF data from profile picture'));
    }
    console.log('before transform: ', image);
    image = image.resize(400, 400).exifRotate((err, exifRotatedData) => {

itoonx

import random

# Returns a random prime number with n bits
def generate_prime(n):
  while True:
    p = random.getrandbits(n)
    if is_prime(p):
      return p

# Returns the result of evaluating a polynomial with coefficients

itoonx

TL;DR - jump to the challenge at the end

====ON BLOCKING EVIL BOTS=====
On a resent job interview I had for "Incapsula" a few days ago I was put to the challenge to break
their bot protection mechanism. Apparently node.js is not that common among bot writes and most bots
are not able to run javascript.
The challenge had two parts -
1. find what the code does.
2. implement a bot that will break the code without using js.
3. think how to make this code unbreakable

itoonx

package main

import (
	"github.com/btcsuite/btcd/txscript"
	"github.com/btcsuite/btcutil"
)

func BuildMultiSigRedeemScript() (string, error) {

	// you can use your wif

itoonx

const pools = await Utils.multiCall([...Array(parseInt(poolLength)).keys()].map(id => {
    return {
      pid: id.toString(),
      poolInfo: new Web3EthContract(abi, masterChef).methods[poolInfoFunctionName](id),
    };
  }));

itoonx

const axios = require("axios");

const { MultiCall } = require("eth-multicall");
const crypto = require("crypto");

const Web3 = require("web3");
const _ = require("lodash");

const { providers } = require("ethers");

itoonx

/**
Example Swap -> AMM Model of Uniswap V1,V2
**/

// Testing online
// https://jsfiddle.net/itoonx/xqah6e9v/



const asset = 'BNB'

itoonx

/*
 * @Author: itoonx 
 * @Date: 2018-05-01 22:55:25 
 * @Last Modified by: itoonx
 * @Last Modified time: 2018-08-30 08:14:49
 */

const fs = require('fs')
const path = require('path')
const chalk = require('chalk')

itoonx

const fs = require('fs')
const path = require('path')
const httpStatus = require('http-status')
const EthereumTx = require('ethereumjs-tx')
const etherwallet = require('ethereumjs-wallet')
const { web3, engine } = require('../../config/web3provider')

const getERC20Balance = async (address_without_0x, contractAddress) => {
  return new Promise(async (resolve, reject) => {

itoonx

AMM Model of UniswapV2

LP Token calculator - สูตรการหามูลค่า LP Token

1 LP Value = ( Total value of Pool / Circulating supply LP )

RAY Price = 10.85

RAY Amount = 1,486,494.518254 Token