IONOS Windows Hosting ASP.Net Core WebAPI

This is a sample project to demonstrate how to handle ASP.Net Core WebAPIs hosted with IONOS Windows Hosting. There are some limitations:

HTTP requests

HTTP requests are only allowed when using GET or POST. PUT/PATCH/DELETE/etc is denied.

When calling external HTTP requests, a proxy is required. The proxy can be set globally.

#if !DEBUG
    System.Net.Http.HttpClient.DefaultProxy = new System.Net.WebProxy("http://winproxy.server.lan:3128");
#endif

HTTPS redirects can't be handled by ASP.Net Core.

public void Configure(IApplicationBuilder app)
{
    app.UseHttpsRedirection(); // this won't work
    [...]
}

Instead one should use an .htacces file like this:

RewriteEngine On
RewriteCond %{SERVER_PORT} !=443
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]

The default hosting model InProcess is not supported. In the *.csproj file one should add the following line to use the OutOfProcess hosting model.

<PropertyGroup>
    <AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
</PropertyGroup>

More information can be found in the Help center