Why Golang is so popular?

“Concurrency”

An “Easy To Achieve Concurrency” New generation hardware is multicore (4,8,12,16 cores CPUs), and to take advantage of all the cores you have to write multithreaded programming, most developers avoid writing multithreaded programming due to many reasons one of which is “Hard to get it Right”

The web server created in Golang is Multithreaded OUT-OF-THE-BOX, Golang has a concept called Goroutines, it’s a lightweight independently running function, and Go runtime takes care of its execution, Go runtime itself decides how many threads will be required to execute the spawned goroutines. Besides creating and communicating between goroutines is super easy

This feature gives great power to the developer resulting in a good performance