public void ConfigureServices(IServiceCollection services)
{
    // Add rendertron services
	services.AddRendertron(options =>
	{
		// rendertron service url
		options.RendertronUrl = "https://rendertron:3000/render/";
		// proxy url for application
		options.AppProxyUrl = "https://webapplication";
		// prerender for firefox
		//options.UserAgents.Add("firefox");
		// inject shady dom
		options.InjectShadyDom = true;
		
		// use http compression
		options.AcceptCompression = true;
	});
}

public void ConfigureServices(IServiceCollection services)
{
    // Add rendertron services
	services.AddRendertron(rendertronUrl: "https://rendertron:3000/render/");
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    ...
    // Use Rendertron middleware
    app.UseRendertron();
    ...
    app.UseMvc();
}