The Keen.io PHP Sample Code demonstrates how to check that a Keen IO Client is instantiated properly, check that the Client is of the right type, and test if the client setter method and that the value returned are correct.
If you’re writing a serious application, on the web or otherwise, you’ve got to have good logging. In the context of application development, reading logs is my personal favorite method for tracking bugs and rooting them out. A service like Loggly is perfect for programmers like me. It provides an easy to use web interface with searching capabilities that allows you to see what your application is logging at any time that you’d like to check in. Debugging with Loggly is nice, but it’s just the tip of the iceberg, thanks in part to its Loggly API.
UserClues is a platform that enables its customers to monitor and measure user activity on their sites. This tool is aimed at platform providers, web app developers, mobile providers and product developers who can benefit from understanding their users' behaviour in order to develop relevant and more effective products. The UserClues API provides access to all collected and processed data, allowing developers to use this to build their own applications or reporting solutions.
The Internet thrives on a variety of content--from cat pictures to blog posts--and a multitude of access methods, from APIs to telegrams. But none of it would exist without electricity powering all those clients, servers, and the network equipment in between. Now, the U.S. Energy Information Administration (EIA) has released an API detailing how and where American electric power is generated, sold, and used.