add routes, config, args pkg

pkg/config/config.go

@@ -0,0 +1,53 @@
+package config
+
+import (
+	confLoader "git.trj.tw/golang/config-loader"
+)
+
+// Server backend config
+type Server struct {
+	Port       int    `yaml:"port" env:"SERVER_PORT" default:"10230"`
+	BackendURL string `yaml:"backend_url" env:"SERVER_BACKEND_URL" default:"http://localhost:10230"`
+}
+
+// Database connect setting
+type Database struct {
+	DSN      string `yaml:"dsn" env:"DB_DSN" default:"postgres://postgres@localhost:5432/dbname"`
+	MaxConn  uint   `yaml:"max_conn" env:"DB_MAX_CONN" default:"5"`
+	IdleConn uint   `yaml:"idle_conn" env:"DB_IDLE_CONN" default:"2"`
+}
+
+type Config struct {
+	Server   Server   `yaml:"server"`
+	Database Database `yaml:"database"`
+}
+
+var c *Config
+
+func Load(p ...string) error {
+	loadOpts := &confLoader.LoadOptions{FromEnv: true}
+
+	if len(p) > 0 && p[0] != "" {
+		loadOpts.ConfigFile = &confLoader.ConfigFile{
+			Type: confLoader.ConfigFileTypeYAML,
+			Path: p[0],
+		}
+	}
+
+	c = &Config{}
+
+	if err := confLoader.Load(c, loadOpts); err != nil {
+		return err
+	}
+
+	// post loaded proc
+
+	return nil
+}
+
+func Get() *Config {
+	if c == nil {
+		panic("config not init")
+	}
+	return c
+}