danielnegri

CREATE TABLE books (
  isbn    char(14) NOT NULL,
  title   varchar(255),
  author  varchar(255),
  price   decimal(5,2)
);

INSERT INTO books (isbn, title, author, price) VALUES
('978-1503261969', 'Emma', 'Jayne Austen', 9.44),
('978-1514274873', 'Journal of a Soldier', NULL, 5.49),

danielnegri

package com.ondeck.reportgeneratorapi.services;

import com.princexml.Prince;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;

danielnegri

var bitcore = require('bitcore');
var request = require('request');

var utxo = {
    'txId' : '0c5d827a24b0822abbff73f1adbfd2be7efaf4e368b4baac7e280865eb13f497',
    'outputIndex' : 1,
    'script' : 'a91431f2ae5b333c56a4f01df6209382ec8f892e4f3687',
    'satoshis' : 1000000
};

danielnegri

function pwdx {
  lsof -a -p $1 -d cwd -n | tail -1 | awk '{print $NF}'
}

danielnegri

# Report current working directory of a process by port
function pwdx {
  # lsof -a -p $1 -d cwd -n | tail -1 | awk '{print $NF}'
  lsof -a -p $1 -d cwd -n
}

portpwdx () {
    pid=$(lsof -i :$1 | tail -1 | perl -pe 's/[^\s]+\s+([^\s]+)\s.*/$1/')
    if [[ ! -z $pid ]]
    then

danielnegri

/**
 * Implementation example of writable response bodies.
 * Based on the draft of the Streams API (19 March 2014)
 *   https://dvcs.w3.org/hg/streams-api/raw-file/tip/Overview.htm
 * Design document for response body reading/writing:
 *   https://docs.google.com/document/d/1iE6M-YSmPtMOsec7pR-ILWveQie8JQQXTm15JKEcUT8
 */
/* globals chrome, ByteStream, URL, XMLHttpRequest */
'use strict';

danielnegri

package main

import (
	"bufio"
	"encoding/csv"
	"encoding/json"
	"fmt"
	"io"
	"os"
	"path/filepath"

danielnegri

Golang Workers / Job Queue

A running example of the code from:

• http://marcio.io/2015/07/handling-1-million-requests-per-minute-with-golang
• http://nesv.github.io/golang/2014/02/25/worker-queues-in-go.html

This gist creates a working example from blog post, and a alternate example using simple worker pool.

TLDR: if you want simple and controlled concurrency use a worker pool.

danielnegri

const store = createStore((state = { counter: 0 }, action) => {
  switch(action.type) {
    case "INCREMENT":
      return { counter: state.counter + 1 }
    case "DECREMENT":
      return { counter: state.counter - 1 }
    default:
      return state
  }
})

danielnegri

How To TCP NAT Traversal using Node.js and a STUN Server

With the scarecity of IPv4 addresses, and IPv6 still not available at large, NAT traversal is becoming a necessity. Especially with the generalisation of Carrier-grade NATs that you can find on mobile connections. Even with IPv6 you may suffer NAT66. Imagine your mobile device that gets only a single Ipv6 address, and you want to share it on your computer.

The solution might be in a decentralized protocol for address attribution such