miguelmota’s gists

## basis_points.txt
basis points

1    bp = 0.01
10   bp = 0.1%
100  bp = 1%
1000 bp = 10%

## Example.sol
pragma solidity ^0.4.23;

contract Example {
  uint256 public data;

  function set(uint256 _data) public {
    data = _data;
  }
}

## scatter_example.js
const ScatterJS = require('scatterjs-core').default
const ScatterEOS = require('scatterjs-plugin-eosjs').default
const Eos = require('eosjs')

ScatterJS.plugins(new ScatterEOS())
const connectionOptions = {
  initTimeout: 10000
}

const network = {

## set_account_permission.sh
# key is active public key
cleos -u http://api.kylin.alohaeos.com set account permission myaccount123 active '{"threshold":1, "keys":[{"key":"EOS5nKgVwRvRnjf4tyViZ61iydQ6CiFMoURta36RUk9hxi5wpAkLb", "weight":1}], "accounts": [{"permission":{"actor":"myaccount123","permission":"eosio.code"},"weight":1}]}' owner -p myaccount123

## sign.cpp
int main(int argc, const char * argv[]) {
    // using sha256 = fc::sha256;
    // char b[32];
    // memset(b, 0, sizeof(b));
    // auto sb = fc::sha256::hash(b, sizeof(b));
    auto sb =  fc::sha256("0000000000000000000000000000000000000000000000000000000000000000");
    auto strpkey = std::string("5HxQKWDznancXZXm7Gr2guadK7BhK9Zs8ejDhfA9oEBM89ZaArv");
    auto pkey = eosio::chain::private_key_type(strpkey);
    auto sig2 = pkey.sign(sb);
    auto strsig2 = (std::string)sig2;

## signout.js
const auth2 = window.gapi.auth2.getAuthInstance()
auth2.signOut().then(function () {

})

## limit_gas_price.sol
function() payable {
    require(tx.gasprice < 30000000000); // 30000000000 is 30 gwei
                                        // if gas price is higher than it, the tx will fail
    doOtherProcessing();
}

## build_create2_address.js
function buildCreate2Address(creatorAddress, saltHex, byteCode) {
  const parts = [
    'ff',
    creatorAddress.slice(2),
    saltHex.slice(2),
    web3.utils.sha3(byteCode).slice(2),
  ]

  const partsHash = web3.utils.sha3(`0x${parts.join('')}`)
  return `0x${partsHash.slice(-40)}`.toLowerCase()

## wikipedia_random_url.txt
https://en.wikipedia.org/wiki/Special:Random

## main.go
package main

import (
	"bufio"
	"bytes"
	"fmt"
)

func main() {
	b := []byte("hello\nworld")