GetJsonPropertyName

gistfile1.cs

string GetJsonPropertyName(User user)
{
        Type type = user.GetType();
        var objProps = type.GetProperties();
        foreach (var prop in user.GetType().GetProperties())
        {
            var attrs =
                from attr in Attribute.GetCustomAttributes(prop)
                where attr is JsonPropertyAttribute
                select attr;
            foreach (JsonPropertyAttribute attr in attrs)
            {
                return attr.PropertyName;
            }
        }
}