Add http server

httpserver/httpserver.go

@@ -0,0 +1,25 @@
+package httpserver
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+func hello(rw http.ResponseWriter, req *http.Request) {
+	fmt.Fprintln(rw, "Hello, world!")
+}
+
+func headers(rw http.ResponseWriter, req *http.Request) {
+	for k, v := range req.Header {
+		fmt.Fprintf(rw, "%s: %v\n", k, strings.Join(v, " "))
+	}
+}
+
+func HttpServer() {
+	http.HandleFunc("/hello", hello)
+	http.HandleFunc("/headers", headers)
+
+	fmt.Println("Listening on 8002")
+	http.ListenAndServe(":8002", nil)
+}