struct_copy.go

package main

import (
	"reflect"
)

// StructCopy Copies the common field values from source to target. Pass the pointers of the interfaces
func StructCopy(source interface{}, target interface{}) {
	sourceElem := reflect.ValueOf(source).Elem()
	targetElem := reflect.ValueOf(target).Elem()

	for i := 0; i < sourceElem.NumField(); i++ {
		sourceField := sourceElem.Type().Field(i)
		targetField := targetElem.FieldByName(sourceField.Name)

		if targetField.Kind() == sourceElem.Field(i).Kind() {
			targetField.Set(reflect.Value(sourceElem.Field(i)))
		}
	}
}