Implement review suggestions

api/endpoints_debug.go

@@ -11,6 +11,16 @@ import (
 )
 
 func registerDebugEndpoints() error {
+	if err := RegisterEndpoint(Endpoint{
+		Path:        "ping",
+		Read:        PermitAnyone,
+		ActionFunc:  ping,
+		Name:        "Ping",
+		Description: "Pong.",
+	}); err != nil {
+		return err
+	}
+
 	if err := RegisterEndpoint(Endpoint{
 		Path:        "debug/stack",
 		Read:        PermitAnyone,
@@ -50,6 +60,11 @@ func registerDebugEndpoints() error {
 	return nil
 }
 
+// ping responds with pong.
+func ping(ar *Request) (msg string, err error) {
+	return "Pong.", nil
+}
+
 // getStack returns the current goroutine stack.
 func getStack(_ *Request) (data []byte, err error) {
 	buf := &bytes.Buffer{}