diff --git a/config/config.go b/config/config.go
index 72eec7a9..c8243110 100644
--- a/config/config.go
+++ b/config/config.go
@@ -40,3 +40,14 @@ type Config interface {
 //	Next() (, error)
 //	Stop() error
 //}
+
+// Load loads config from config sources
+func Load(ctx context.Context, cs ...Config) error {
+	var err error
+	for _, c := range cs {
+		if err = c.Load(ctx); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/config/default.go b/config/default.go
index 7ee22fda..39cc3ff1 100644
--- a/config/default.go
+++ b/config/default.go
@@ -23,12 +23,24 @@ func (c *defaultConfig) Init(opts ...Option) error {
 }
 
 func (c *defaultConfig) Load(ctx context.Context) error {
+	for _, fn := range c.opts.BeforeLoad {
+		if err := fn(ctx, c); err != nil {
+			return err
+		}
+	}
+
 	valueOf := reflect.ValueOf(c.opts.Struct)
 
 	if err := c.fillValues(ctx, valueOf); err != nil {
 		return err
 	}
 
+	for _, fn := range c.opts.AfterLoad {
+		if err := fn(ctx, c); err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
 
@@ -208,6 +220,18 @@ func (c *defaultConfig) fillValues(ctx context.Context, valueOf reflect.Value) e
 }
 
 func (c *defaultConfig) Save(ctx context.Context) error {
+	for _, fn := range c.opts.BeforeSave {
+		if err := fn(ctx, c); err != nil {
+			return err
+		}
+	}
+
+	for _, fn := range c.opts.AfterSave {
+		if err := fn(ctx, c); err != nil {
+			return err
+		}
+	}
+
 	return nil
 }