Note: this post was originally written for the Go Advent 2015 series, but I discovered that a post with almost exactly the same subject (and even similar code!) already planned :) That’s amazing. Golang is often used for writing microservices and various backends. Often these type of software do some computation, read/write data on external storage and expose it’s API via http handlers. All this functionality is remarkably easy to implement in Go and, especially if you’re creating 12factor-compatible app, Go is your friend here.