bugfix: restful api url should support both with version info and without version info

Signed-off-by: Michael Wan <[email protected]>

Author: HusterWan

apis/server/router.go

@@ -74,6 +74,7 @@ func initRoute(s *Server) http.Handler {
 
 	// metrics
 	r.Path(versionMatcher + "/metrics").Methods(http.MethodGet).Handler(prometheus.Handler())
+	r.Path("/metrics").Methods(http.MethodGet).Handler(prometheus.Handler())
 
 	if s.Config.Debug {
 		profilerSetup(r)
@@ -83,6 +84,7 @@ func initRoute(s *Server) http.Handler {
 
 func addRoute(r *mux.Router, mothod string, path string, f func(ctx context.Context, rw http.ResponseWriter, req *http.Request) error) {
 	r.Path(versionMatcher + path).Methods(mothod).Handler(filter(f))
+	r.Path(path).Methods(mothod).Handler(filter(f))
 }
 
 func profilerSetup(mainRouter *mux.Router) {

test/api_version_parameter_test.go

@@ -25,6 +25,7 @@ func (suite *APIVersionSuite) SetUpTest(c *check.C) {
 }
 
 // TestNoVersionParamsInURL test api url not contains version info.
+// Pouch api url support with or without version info.
 func (suite *APIVersionSuite) TestNoVersionParamsInURL(c *check.C) {
 	cname := "TestCreateURLNoVersionInfo"
 
@@ -55,5 +56,5 @@ func (suite *APIVersionSuite) TestNoVersionParamsInURL(c *check.C) {
 	resp, err := apiClient.HTTPCli.Do(req)
 	c.Assert(err, check.IsNil)
 
-	CheckRespStatus(c, resp, 404)
+	CheckRespStatus(c, resp, 201)
 }