Add option to skip logging specified endpoints

logger.go

@@ -46,7 +46,17 @@ func Logger() HandlerFunc {
 
 // Instance a Logger middleware with the specified writter buffer.
 // Example: os.Stdout, a file opened in write mode, a socket...
-func LoggerWithWriter(out io.Writer) HandlerFunc {
+func LoggerWithWriter(out io.Writer, notlogged ...string) HandlerFunc {
+	var skip map[string]struct{}
+
+	if length := len(notlogged); length > 0 {
+		skip = make(map[string]struct{}, length)
+
+		for _, path := range notlogged {
+			skip[path] = struct{}{}
+		}
+	}
+
 	return func(c *Context) {
 		// Start timer
 		start := time.Now()
@@ -55,6 +65,8 @@ func LoggerWithWriter(out io.Writer) HandlerFunc {
 		// Process request
 		c.Next()
 
+		// Log only when path is not being skipped
+		if _, ok := skip[path]; !ok {
 			// Stop timer
 			end := time.Now()
 			latency := end.Sub(start)
@@ -76,6 +88,7 @@ func LoggerWithWriter(out io.Writer) HandlerFunc {
 				comment,
 			)
 		}
+	}
 }
 
 func colorForStatus(code int) string {

logger_test.go

@@ -124,3 +124,17 @@ func TestErrorLogger(t *testing.T) {
 	assert.Equal(t, w.Code, 500)
 	assert.Equal(t, w.Body.String(), "hola!")
 }
+
+func TestSkippingPaths(t *testing.T) {
+	buffer := new(bytes.Buffer)
+	router := New()
+	router.Use(LoggerWithWriter(buffer, "/skipped"))
+	router.GET("/logged", func(c *Context) {})
+	router.GET("/skipped", func(c *Context) {})
+
+	performRequest(router, "GET", "/logged")
+	assert.Contains(t, buffer.String(), "200")
+
+	performRequest(router, "GET", "/skipped")
+	assert.Contains(t, buffer.String(), "")
+}