Use of Viper and cobra

utils.go

@@ -0,0 +1,23 @@
+/*
+Copyright
+*/
+package main
+
+import (
+	"errors"
+	"reflect"
+)
+
+// Invoke calls the specified method with the specified arguments on the specified interface.
+// It uses the go(lang) reflect package.
+func invoke(any interface{}, name string, args ...interface{}) ([]reflect.Value, error) {
+	inputs := make([]reflect.Value, len(args))
+	for i := range args {
+		inputs[i] = reflect.ValueOf(args[i])
+	}
+	method := reflect.ValueOf(any).MethodByName(name)
+	if method.IsValid() {
+		return method.Call(inputs), nil
+	}
+	return nil, errors.New("Method not found: " + name)
+}