add configuration

config/config.go

@@ -0,0 +1,23 @@
+package config
+
+import "flag"
+
+type Config struct {
+	Port         int    `json:"port"`
+	LogPath      string `json:"logPath"`
+	DatabasePath string `json:"databasePath"`
+}
+
+func ParseFlags() Config {
+	port := flag.Int("Port", 8080, "Listen port")
+	logPath := flag.String("LogPath", "logs", "Path to log files")
+	databasePath := flag.String("DatabasePath", "badgerdb", "Path to the database directory")
+
+	flag.Parse()
+
+	return Config{
+		Port:         *port,
+		LogPath:      *logPath,
+		DatabasePath: *databasePath,
+	}
+}