improve readme

internal/config/config.go

@@ -0,0 +1,46 @@
+package config
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v2"
+)
+
+// AsgardeoConfig groups all Asgardeo-specific fields
+type DemoConfig struct {
+	ClientID     string `yaml:"client_id"`
+	ClientSecret string `yaml:"client_secret"`
+	OrgName      string `yaml:"org_name"`
+}
+
+type Config struct {
+	AuthServerBaseURL string            `yaml:"auth_server_base_url"`
+	MCPServerBaseURL  string            `yaml:"mcp_server_base_url"`
+	ListenAddress     string            `yaml:"listen_address"`
+	JWKSURL           string            `yaml:"jwks_url"`
+	TimeoutSeconds    int               `yaml:"timeout_seconds"`
+	MCPPaths          []string          `yaml:"mcp_paths"`
+	PathMapping       map[string]string `yaml:"path_mapping"`
+
+	// Nested config for Asgardeo
+	Demo DemoConfig `yaml:"demo"`
+}
+
+// LoadConfig reads a YAML config file into Config struct.
+func LoadConfig(path string) (*Config, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	var cfg Config
+	decoder := yaml.NewDecoder(f)
+	if err := decoder.Decode(&cfg); err != nil {
+		return nil, err
+	}
+	if cfg.TimeoutSeconds == 0 {
+		cfg.TimeoutSeconds = 15 // default
+	}
+	return &cfg, nil
+}