Using files in a ASP.NET Core nuget package

To use static (html) files in a NUGET ASP.NET Core package to be displayed I have used the following solution

1. Put the files in a folder ( in my case , blocklyAutomation )

2. Put in the .csproj to embed the files

<ItemGroup>
   <EmbeddedResource Include=”BlocklyAutomation\**\*”>
     <CopyToOutputDirectory>Never</CopyToOutputDirectory>
   </EmbeddedResource>
</ItemGroup>

3.  Create an extension to use it

;

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public static void UseBlocklyUI(this IApplicationBuilder appBuilder)
{
    var manifestEmbeddedProvider =
            new ManifestEmbeddedFileProvider(Assembly.GetExecutingAssembly());
    var service = appBuilder.ApplicationServices;
    mapFile("blocklyAutomation", manifestEmbeddedProvider, appBuilder);
 
 
}
 
private static void mapFile(string dirName, IFileProvider provider, IApplicationBuilder appBuilder)
{
    var folder = provider.GetDirectoryContents(dirName);
    foreach (var item in folder)
    {
        if (item.IsDirectory)
        {
            mapFile(dirName + "/" + item.Name, provider, appBuilder);
            continue;
        }
        string map = (dirName + "/" + item.Name).Substring(dirName.Length);
        appBuilder.Map(map, app =>
        {
            var f = item;
 
            app.Run(async cnt =>
            {
                //TODO: find from extension
                //cnt.Response.ContentType = "text/html";
                using var stream = new MemoryStream();
                using var cs = f.CreateReadStream();
                byte[] buffer = new byte[2048]; // read in chunks of 2KB
                int bytesRead;
                while ((bytesRead = cs.Read(buffer, 0, buffer.Length)) > 0)
                {
                    stream.Write(buffer, 0, bytesRead);
                }
                byte[] result = stream.ToArray();
                var m = new Memory<byte>(result);
                await cnt.Response.BodyWriter.WriteAsync(m);
            });
        });
    }
 
}

4. That is all