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Showing posts from April, 2015

Microservices vs David Heinemeier Hansson

Hearing that David Heinemeier Hansson had slammed microservices in his Rails Conf 2015 keynote was a bit disorienting as I was developing a microservice at the time. I leaned over to the other senior developer and said: “What’s his deal?” Toby Tripp, who had just watched the keynote, explained that when David’s team implemented microservices they had terrible trouble managing all the versions between 3 systems. “Isn’t that why we use a lookup call to get the URI-map?” I asked. “Yep” he said. “That and never remove a return key/value (pair), only add new ones until you can prove they are not used anymore” He added. I returned to adding in some caching to our service calls. 
Later, I watched the video which is here: https://www.youtube.com/watch?v=oMlX9i9Icno
David has a meandering style but he mostly discusses microservices between 43:00 and 52:00.  The “what’s in your backpack” stuff is all about his earlier zombie apocalypse metaphor that you can watch if you like.  He claims his team impl…