add check for internal server to do error log

pkg/gofr/http/middleware/logger.go

@@ -88,8 +88,13 @@ func Logging(logger logger) func(inner http.Handler) http.Handler {
 					URI:          req.RequestURI,
 					Response:     res.status,
 				}
+
 				if logger != nil {
-					logger.Log(l)
+					if res.status >= http.StatusInternalServerError {
+						logger.Error(l)
+					} else {
+						logger.Log(l)
+					}
 				}
 			}(srw, r)
 

pkg/gofr/http/middleware/logger_test.go

@@ -55,12 +55,32 @@ func Test_LoggingMiddleware(t *testing.T) {
 	assert.Contains(t, logs, "GET    200")
 }
 
+func Test_LoggingMiddlewareError(t *testing.T) {
+	logs := testutil.StderrOutputForFunc(func() {
+		req, _ := http.NewRequestWithContext(context.Background(), "GET", "http://dummy", http.NoBody)
+
+		rr := httptest.NewRecorder()
+
+		handler := Logging(logging.NewMockLogger(logging.ERROR))(http.HandlerFunc(testHandlerError))
+
+		handler.ServeHTTP(rr, req)
+	})
+
+	assert.Contains(t, logs, "GET    500")
+}
+
 // Test handler that uses the middleware.
 func testHandler(w http.ResponseWriter, _ *http.Request) {
 	w.WriteHeader(http.StatusOK)
 	_, _ = w.Write([]byte("Test Handler"))
 }
 
+// Test handler for internalServerErrors that uses the middleware.
+func testHandlerError(w http.ResponseWriter, _ *http.Request) {
+	w.WriteHeader(http.StatusInternalServerError)
+	_, _ = w.Write([]byte("error"))
+}
+
 func Test_LoggingMiddlewareStringPanicHandling(t *testing.T) {
 	logs := testutil.StderrOutputForFunc(func() {
 		req, _ := http.NewRequestWithContext(context.Background(), "GET", "http://dummy", http.NoBody)