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 =>
    {
        // use http compression
        options.AcceptCompression = true;
    });
}

Configure middleware

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    ...
    // Use Rendertron middleware
    app.UseRendertron(proxyUrl: "http://rendertron:8080/render/");
    ...
    app.UseMvc();
}

or

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    ...
    // Use Rendertron middleware
    app.UseRendertron(new RendertronMiddlewareOptions()
    {
        ProxyUrl = "http://rendertron:8080/render/",
        InjectShadyDom = true
    });
    ...
    app.UseMvc();
}

Services configuration

Property	Default	Description
AcceptCompression	false	Add http compression suppor for Rendertron proxy client.

Middleware configuration

RendertronMiddlewareOptions

Property	Default	Description
ProxyUrl	Required	URL of your running Rendertron proxy 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.
UseForEmptyUserAgents	false	Pre-rendering for empty User-Agent
InjectShadyDom	false	Force the web components polyfills to be loaded. Read more.
Timeout	TimeSpan.FromSeconds(11)	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.