Implement JWT session and token

config/jwt.go

@@ -4,6 +4,12 @@ type Jwt struct {
 	Token        Token        `mapstructure:"token"`
 	RefreshToken RefreshToken `mapstructure:"refresh_token"`
 	Customer     Customer     `mapstructure:"customer"`
+	SelfOrder    SelfOrder    `mapstructure:"self_order"`
+}
+
+type SelfOrder struct {
+	ExpiresTTL int    `mapstructure:"expires-ttl"`
+	Secret     string `mapstructure:"secret"`
 }
 
 type Token struct {