Building RESTful Web services with Go

Understanding Go's net/http package

Go's net/http package deals with HTTP client and server implementations. Here, we are mainly interested in the server implementation. Let us create a small Go program called basicHandler.go that defines the route and a function handler:

package mainimport (    "io"    "net/http"    "log")// hello world, the web serverfunc MyServer(w http.ResponseWriter, req *http.Request) {    io.WriteString(w, "hello, world!\n")}func main() {    http.HandleFunc("/hello", MyServer)    log.Fatal(http.ListenAndServe(":8000", nil))}

This code does the following things: 

1. Create a route called  /hello. 
2. Create a handler called MyServer.
3. Whenever the request comes on the route (/hello), the handler function will be executed.
4. Write hello, world ...