public void Configure(IApplicationBuilder app, INodeServices nodeServices)
{
app.UseStaticFiles();
app.UseWebSockets();
app.UseSignalR();
app.UseDotNetify();
app.Run(async(context) =>
{
if (context.Request.Query["ssr"] == "false")
{
// Client-side rendering.
using (var reader = new StreamReader(File.OpenRead("wwwroot/index.html")))
await context.Response.WriteAsync(reader.ReadToEnd());
}
else
{
// Server-side reandering.
var path = context.Request.Path.Value;
path = path == "/" ? "/index" : path;
var ssrStates = ServerSideRender.GetInitialStates(ref path, typeof(Index));
var result = await nodeServices.InvokeAsync <string>("./src/app.server", path, ssrStates);
await context.Response.WriteAsync(result);
}
});
}
/// <summary>
/// Includes server-side rendering in the application request pipeline.
/// </summary>
/// <param name="appBuilder">Application builder.</param>
/// <param name="mainVMType">Main application view model type.</param>
/// <param name="nodeJSInvokeAsync">Function to invoke javascript in NodeJS.</param>
/// <param name="onError">Request delegate to handle failure.</param>
public static IApplicationBuilder UseSsr(this IApplicationBuilder appBuilder, Type mainVMType, Func <string[], Task <string> > nodeJSInvokeAsync, RequestDelegate onError)
{
var vmFactory = appBuilder.ApplicationServices.GetRequiredService <IVMFactory>();
appBuilder.UseWhen(context => !Path.HasExtension(context.Request.Path.Value), app =>
{
app.Run(async context =>
{
try
{
// Server-side rendering.
string path = context.Request.Path.Value;
string ssrStates = ServerSideRender.GetInitialStates(vmFactory, ref path, mainVMType);
string userAgent = context.Request.Headers["User-Agent"];
string result = await nodeJSInvokeAsync(new string[] { userAgent, path, ssrStates });
await context.Response.WriteAsync(result);
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
await onError(context);
}
});
});
return(appBuilder);
}
/// <summary>
/// Includes server-side rendering in the application request pipeline.
/// </summary>
/// <param name="appBuilder">Application builder.</param>
/// <param name="mainVMType">Main application view model type.</param>
/// <param name="nodeJSInvokeAsync">Function to invoke javascript in NodeJS.</param>
public static IApplicationBuilder UseSsr(this IApplicationBuilder appBuilder, Type mainVMType, Func <string[], Task <string> > nodeJSInvokeAsync)
{
var vmFactory = appBuilder.ApplicationServices.GetRequiredService <IVMFactory>();
appBuilder.UseWhen(context => !Path.HasExtension(context.Request.Path.Value), app =>
{
app.Run(async context =>
{
// Server-side rendering.
string path = context.Request.Path.Value;
string ssrStates = ServerSideRender.GetInitialStates(vmFactory, ref path, mainVMType);
string result = await nodeJSInvokeAsync(new string[] { path, ssrStates });
await context.Response.WriteAsync(result);
});
});
return(appBuilder);
}
