Playing Cards API with Go Lang and JSON

This is a continuation from the previous post on setting up Google App Engine with Go and Martini.

Last week, I showed how you can quickly create and launch a project with Google App Engine and Go. I integrated Martini on GAE and today, I will finish the tutorial by actually designing an API to properly respond to requests with JSON. I will also enable CORS and create some functions in GO that will shuffle an array of objects, split the array according to a user provided number, and reorder the array of objects for multiple keys. If we translate that to playing cards, the API will handle shuffling a deck, dealing out the cards to the amount of players provided, and ordering them by suit and numbers. Any remainder of cards based on provided players will go into the kitty. JSON is a popular content type so I will use that and follow the RESTful style of API design.
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API on Google App Engine with Martini and Go

Google App Engine is a great platform for quickly developing and hosting web applications. There are alternatives but today we are going to dig into GAE and show how simple it is to get started. I have previously made a few posts on Go and Martini so today we are going to setup Martini on Google App Engine for the Go Language in order to launch an API in the cloud. Martini is a great framework for building a RESTful API and the workflow below will take you through all the steps, from downloading GoogleAppEngine to deploying our Martini API app:
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Weekly Roundups and Aggregators on Web Development

A lot of blogs and sites have a weekly roundup, a collection of articles and links that you might have missed over the week. I have been a big fan of HTML5 Weekly which is an awesome email newsletters with interesting links on web development. Aggregating content in our times of information overload can be helpful and many websites are now built for the purpose of gathering and organizing bookmarks around a topic. Today, I want to aggregate the aggregators, the weekly roundups, and other useful and free resources on web development that you should be following for staying up to date.
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Multiple Domains with Postfix Mail Server

I am now hosting multiple domains on DigitalOcean and require a solution for email. Before, I was happy with not setting up a mail server on my droplet and just using Gmail but a new project requires domain specific email addresses. Since my domain registrar points my DNS settings to DigitalOcean, I can’t use their mail services. I need to set this up myself and honestly, going through this postfix tutorial was pretty easy. Below, I will cover how to setup postfix for multiple domains and how to read postfix emails.
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