update authorized.go, database.go, go.mod, server.go

server.go

@@ -0,0 +1,27 @@
+package esaccount
+
+import (
+	"context"
+	"net/http"
+	"time"
+)
+
+type Server struct {
+	httpServer *http.Server
+}
+
+func (s *Server) Run(port string, handler http.Handler) error {
+	s.httpServer = &http.Server{
+		Addr:           ":" + port,
+		Handler:        handler,
+		MaxHeaderBytes: 1 << 20,
+		ReadTimeout:    10 * time.Second,
+		WriteTimeout:   10 * time.Second,
+	}
+
+	return s.httpServer.ListenAndServe()
+}
+
+func (s *Server) Shutdown(ctx context.Context) error {
+	return s.httpServer.Shutdown(ctx)
+}