HTTP Server on random available port in Go | Kazuki Higashiguchi | Conf42 Golang 2022

Imagine you want to start an HTTP server without specifying the port. For example, a temporary server for testing. How do you do that? The answer is straightforward. Specify the port number to 0 like: l, err := (““tcp““, ““:0““) It’s an easy rule provided by the net package, but do you understand how Go binds a random port allocation. I’ll give you a clear understanding of what Go does inside the net package. The presentation contains the following topics. - net, net/http packages - File descriptor - TCP, UDP - System calls I think this presentation will give audiences not only a knowledge of Go, but also one of system calls. Other talks at this conference 🚀🪐 — 0:00 Intro 1:12 Talk