/// <summary>
/// Add the main reactive services components, including swagger generation
/// </summary>
/// <param name="services"></param>
/// <param name="builderDelegate"></param>
/// <returns></returns>
public static IServiceCollection AddReactiveServices(this IServiceCollection services,
Action <IReactiveServicesBuilder> builderDelegate, ReactiveServicesOption options)
{
services.AddSingleton(new ReactiveServicesOptions(options));
// Add reactive services core
var builder = new ReactiveServicesBuilder();
builderDelegate(builder);
services.AddSingleton(builder.Build(services));
// Optionally, expose reactive services via API
if (options.HasFlag(ReactiveServicesOption.WithApi))
{
// Routing for mapping HTTP URLs in Kestrel
services.AddRouting();
// Swagger generation
if (options.HasFlag(ReactiveServicesOption.WithSwagger))
{
services.TryAddSingleton <IApiDescriptionGroupCollectionProvider, ReactiveServicesApiDescriptionGroupProvider>();
services.AddSwaggerGen(c =>
{
c.DocumentFilter <ReactiveServicesApiDescriptionsDocumentFilter>();
c.SwaggerDoc("v1", new Info()
{
Title = "My Reactive Services",
Version = "v1"
});
});
}
}
return(services);
}
public static IApplicationBuilder UseReactiveServices(this IApplicationBuilder app)
{
var services = app.ApplicationServices;
var reactiveServices = services.GetService <IReactiveServices>();
void ServiceIterator(Action <Service, Type> x)
{
foreach (var(serviceType, _) in reactiveServices)
{
x((Service)services.GetService(serviceType), serviceType);
}
}
// Register any service bound topics
if (Options.HasFlag(ReactiveServicesOption.WithTopics))
{
ServiceIterator((service, serviceType) =>
{
foreach (var topic in service.Descriptor.Topics)
{
RegisterTopic(
topic,
service,
services.GetService <ISerializer>(),
services.GetService <IMessagePropertyExtractor>(),
app.ApplicationServices.GetService <ActorSystem>()
);
}
});
}
app.UseWebSockets();
// Build the API components
if (Options.HasFlag(ReactiveServicesOption.WithApi))
{
var router = new RouteBuilder(app);
// Register all calls for the services
ServiceIterator((service, serviceType) =>
{
foreach (var call in service.Descriptor.Calls)
{
switch (call.CallId)
{
case RestCallId r:
RegisterCall(router, service, serviceType, call);
break;
case StreamCallId s:
RegisterStream(router, service, serviceType, call, app);
break;
default:
throw new Exception("Unknown call type");
}
}
});
// Visualization components
if (Options.HasFlag(ReactiveServicesOption.WithVisualizer))
{
AddVisualizer(router);
}
// Build the API
var routes = router.Build();
app.UseRouter(routes);
// Optionally, add swagger components
if (Options.HasFlag(ReactiveServicesOption.WithSwagger))
{
var config = services.GetService <IConfiguration>();
var swaggerDocsApiName = config.GetValue <string>("SwaggerDocs:ApiName", "My API V1");
app.UseSwagger();
app.UseSwaggerUI(x =>
{
x.SwaggerEndpoint("/swagger/v1/swagger.json", swaggerDocsApiName);
x.RoutePrefix = string.Empty;
});
}
}
return(app);
}
