// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
public static class Gravatar
{
    public static async Task WriteGravatar(HttpContext context)
    {
        const string type = "monsterid"; // identicon, monsterid, wavatar
        const int size = 200;
        var hash = Guid.NewGuid().ToString("n");
 
        context.Response.StatusCode = 200;
        context.Response.ContentType = "text/html";
        await context.Response.WriteAsync($"<img src=\"https://www.gravatar.com/avatar/{hash}?s={size}&d={type}\"/>");
        await context.Response.WriteAsync($"<pre>Generated at {DateTime.Now:hh:mm:ss.ff}</pre>");
    }
}