feat(http): add listen method to http server

http/server.go

@@ -1,7 +1,11 @@
 package http
 
 import (
+	"net"
 	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
 	"time"
 
 	"github.com/gorilla/mux"
@@ -43,3 +47,30 @@ func WithRoute(method, path string, handler http.Handler) Option {
 		s.router.Methods(method).Path(path).Handler(handler)
 	}
 }
+
+// Listen serves the server's handler on the provided address in a blocking way. In returns either if an error occur
+// which in that case returns the error, or if the server is stopped by a signal (i.e. `SIGINT` or `SIGTERM`).
+// nolint:gosec
+func (s *Server) Listen(addr string) error {
+	ln, err := net.Listen("tcp4", addr)
+	if err != nil {
+		return err
+	}
+
+	listenErr := make(chan error, 1)
+	go func() {
+		listenErr <- http.Serve(ln, s.router)
+	}()
+
+	kill := make(chan os.Signal, 1)
+	signal.Notify(kill, syscall.SIGINT, syscall.SIGTERM)
+
+	for {
+		select {
+		case err := <-listenErr:
+			return err
+		case <-kill:
+			return ln.Close()
+		}
+	}
+}