April 13, 2016
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PubSubHubbub. Say that three times fast. If you're not familiar with PubSubHubbub, it's an extension of the RSS and Atom protocol that allows the feed to push content out when it's updated. That's just the sort of technology we should see from check-in APIs like Foursquare and Gowalla.
In the early days of Twitter, occasionally when you tried to log in you got a “fail whale” – a picture of a whale held up by a flock of birds — as a way of telling you the system was overcapacity, and you should simply try again later. We tolerated it then because, after all, it was only social media. But there are certain types of services, for example, financial exchanges, where you never want a fail whale. So if you have thoughts of building a Bitcoin exchange, where people can buy and trade the popular virtual currency in real-time, you want an infrastructure that can handle high volume trading spikes without going down.
Content delivery network Fastly provides an API to access a range of API-acceleration services, including caching, real-time purge and request collapsing.