private static IServiceCollection AddRazorComponentsCore(
IServiceCollection services,
Type startupType)
{
AddStandardRazorComponentsServices(services);
if (startupType != null)
{
// Call TStartup's ConfigureServices method immediately
var startup = Activator.CreateInstance(startupType);
var wrapper = new ConventionBasedStartup(startup);
wrapper.ConfigureServices(services);
// Configure the circuit factory to call a startup action when each
// incoming connection is established. The startup action is "call
// TStartup's Configure method".
services.Configure <DefaultCircuitFactoryOptions>(circuitFactoryOptions =>
{
var endpoint = BlazorHub.DefaultPath; // TODO: allow configuring this
if (circuitFactoryOptions.StartupActions.ContainsKey(endpoint))
{
throw new InvalidOperationException(
"Multiple Components app entries are configured to use " +
$"the same endpoint '{endpoint}'.");
}
circuitFactoryOptions.StartupActions.Add(endpoint, builder =>
{
wrapper.Configure(builder, builder.Services);
});
});
}
return(services);
}
/// <summary>
/// Registers Server-Side Blazor in the pipeline.
/// </summary>
/// <param name="builder">The <see cref="IApplicationBuilder"/>.</param>
/// <param name="startupType">A Blazor startup type.</param>
/// <returns>The <see cref="IApplicationBuilder"/>.</returns>
public static IApplicationBuilder UseServerSideBlazor(
this IApplicationBuilder builder,
Type startupType)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
if (startupType == null)
{
throw new ArgumentNullException(nameof(startupType));
}
var startup = builder.ApplicationServices.GetRequiredService(startupType);
var wrapper = new ConventionBasedStartup(startup);
Action <IBlazorApplicationBuilder> configure = (b) =>
{
wrapper.Configure(b, b.Services);
};
UseServerSideBlazorCore(builder, configure);
builder.UseBlazor(new BlazorOptions()
{
ClientAssemblyPath = startupType.Assembly.Location,
});
return(builder);
}
private static IServiceCollection AddServerSideBlazorCore(
IServiceCollection services,
Type startupType,
Action <ServerSideBlazorOptions> configure)
{
services.AddSingleton <CircuitFactory, DefaultCircuitFactory>();
services.AddScoped <ICircuitAccessor, DefaultCircuitAccessor>();
services.AddScoped <Circuit>(s => s.GetRequiredService <ICircuitAccessor>().Circuit);
services.AddScoped <IJSRuntimeAccessor, DefaultJSRuntimeAccessor>();
services.AddScoped <IJSRuntime>(s => s.GetRequiredService <IJSRuntimeAccessor>().JSRuntime);
services.AddScoped <IUriHelper, RemoteUriHelper>();
services.AddSignalR().AddMessagePackProtocol(options =>
{
// TODO: Enable compression, either by having SignalR use
// LZ4MessagePackSerializer instead of MessagePackSerializer,
// or perhaps by compressing the RenderBatch bytes ourselves
// and then using https://github.com/nodeca/pako in JS to decompress.
options.FormatterResolvers.Insert(0, new RenderBatchFormatterResolver());
});
if (startupType != null)
{
// Make sure we only create a single instance of the startup type. We can register
// it in the services so we can retrieve it later when creating the middlware.
var startup = Activator.CreateInstance(startupType);
services.AddSingleton(startupType, startup);
// We don't need to reuse the wrapper, it's not stateful.
var wrapper = new ConventionBasedStartup(startup);
wrapper.ConfigureServices(services);
}
if (configure != null)
{
services.Configure(configure);
}
return(services);
}