AspNetCore.Rendertron

ASP.net core middleware for GoogleChrome Rendertron https://github.com/GoogleChrome/rendertron.

NuGet

Install-Package Galamai.AspNetCore.Rendertron

Use

In Startup.cs

Configure rendertron services

public void ConfigureServices(IServiceCollection services)
{
    // Add rendertron services
	services.AddRendertron(options =>
	{
		// rendertron service url
		options.RendertronUrl = "http://rendertron:3000/render/";

		// proxy url for application
		options.AppProxyUrl = "http://webapplication";

		// prerender for firefox
		//options.UserAgents.Add("firefox");

		// inject shady dom
		options.InjectShadyDom = true;
		
		// use http compression
		options.AcceptCompression = true;
	});
}

or

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

Configure middleware

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

Services configuration

Property	Default	Description
AcceptCompression	false	Add http compression suppor for Rendertron proxy client.
RendertronUrl	Required	URL of your running Rendertron service.
UserAgents	A set of known bots that benefit from pre-rendering. ("W3C_Validator", "baiduspider", "bingbot", "embedly", "facebookexternalhit", "linkedinbo", "outbrain", "pinterest", "quora link preview", "rogerbo", "showyoubot", "slackbot", "twitterbot", "vkShare")	Part of requests by User-Agent header.
InjectShadyDom	false	Force the web components polyfills to be loaded. Read more.
Timeout	TimeSpan.FromSeconds(10)	Millisecond timeout for the proxy request to Rendertron. If exceeded, the standard response is served (i.e. next() is called). See also the Rendertron timeout.
AppProxyUrl	null	Use proxy before application.
HttpCacheMaxAge	TimeSpan.Zero	Set responce cache max age.