Gurpartap Singh Gurpartap

APIs: the good, the bad, and the ugly

Michele Titolo @micheletitolo
Who's built, designed, and spec'd a lot of APIs
Talk will focus on web APIs, but applies to many programmatic APIs, too

Documentation

good: it exists (and bonus points if it's interactive: I/O Docs is one nice example)

Golang Workers / Job Queue

A running example of the code from:

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.

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post:

RxJava

Functional (Reactive) Programming

What is Functional Reactive Programming?

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

Intro

Running Kubernetes Example on CoreOS, Part 2 with flannel (formerly Rudder)

	#!/usr/bin/env bash

	# If your OS X WiFi connection stops working, but can be fixed by
	# toggling WiFi off and then on, this script can help prevent mouse arm.
	# Pings Apple's server repeatedly, toggling WiFi off/on when a connection times out.
	while true ; do
	curl --head --silent --connect-timeout 10 http://www.apple.com/my-wifi-keeps-dropping-out > /dev/null
	if [ $? -ne 0 ] ; then
	networksetup -setairportpower en1 off
	networksetup -setairportpower en1 on


	// meet Stringy - a simple string type with a fluent interface
	struct Stringy {
	let content: String

	init(_ content: String) {
	self.content = content
	}

	func append(appendage: Stringy) -> Stringy {

	/*

	This script is meant to be used with a Google Sheets spreadsheet. When you edit a cell containing a
	valid CSS hexadecimal color code (like #000 or #000000), the background color will change to that
	color and the font color will be changed to the inverse color for readability.

	To use this script in a Google Sheets spreadsheet:
	1. go to Tools » Script Editor;
	2. replace everyting in the text editor with this code;
	3. click File » Save;

	package main

	import (
	"log"
	"os"

	"github.com/samalba/dockerclient"
	)

	func main() {