Distributed Computing with Go

A simple web server

Go provides us with an inbuilt library for building web servers, net/http. For every endpoint we want to create on our server, we have to do two things:

1. Create a handler function for the endpoint, which accepts two parameters, one for writing to response and one to handle the incoming Request.
2. Register the endpoint using net/http.HandleFunc.

The following is a simple web server that accepts all incoming requests, logs them on to the console, and then returns a Hello, World! message.

// helloServer.go package main import ( "fmt" "log" "net/http" ) func helloWorldHandler(w http.ResponseWriter, r *http.Request) { msg := fmt.Sprintf("Received request [%s] for path: [%s]", r.Method, r.URL.Path) log.Println(msg) response := ...