danielnegri

INCIDENT DATE - INCIDENT TYPE

Meeting

Waiving meetings

In some cases the IC might determine that a PM meeting for the incident isn't needed. If the IC decides to waive the meeting please replace the Meeting section with a note indicating the meeting has been waived (example: Meeting waived: Paul Mooring)

danielnegri

Fetch a Tree with Neo4j

Today I came across a really interesting StackOverflow question:

Given a forest of trees in a Neo4j REST server, I`m trying to return a single tree given the root vertex. Being each tree quite large, I need a de-duplicated list of all vertices and edges in order to be able to reconstruct the full tree on the client side.

danielnegri

Fetch a Tree with Neo4j

Today I came across a really interesting StackOverflow question:

Given a forest of trees in a Neo4j REST server, I`m trying to return a single tree given the root vertex. Being each tree quite large, I need a de-duplicated list of all vertices and edges in order to be able to reconstruct the full tree on the client side.

danielnegri

def trapBOM(fileBytes []byte) []byte{
  trimmedBytes := bytes.Trim(fileBytes, "\xef\xbb\xbf")
  return trimmedBytes
}

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

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

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

package main

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

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

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