OAuthMetaDataAttribute.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
 
namespace Waher.Networking.HTTP.OAuth.MetaData
{
    public abstract class OAuthMetaDataAttribute : Attribute
    {
        public OAuthMetaDataAttribute()
        {
        }
 
        public virtual Task RegisterMetaData(HttpResource Resource)
        { 
            return Task.CompletedTask;
        }
 
        public abstract Task AddMetaData(HttpResource Resource,
            Dictionary<string, object> MetaData);
    }
}