import '@angular/localize/init';
import 'zone.js/dist/zone-node';
import 'reflect-metadata';
import { INITIAL_CONFIG, platformDynamicServer, PlatformState } from '@angular/platform-server';
import { APP_BASE_HREF } from '@angular/common';
import { enableProdMode, ApplicationRef, NgZone } from '@angular/core';
import { provideModuleMap } from '@nguniversal/module-map-ngfactory-loader';
import { createServerRenderer, RenderResult } from 'aspnet-prerendering';
import { SSRResponseStatusCodeService } from './app/services/SSRResponseStatusCode.service';
import { first } from 'rxjs/operators';
import * as cache from 'memory-cache';
export { AppServerModule } from './app/app.server.module';

enableProdMode();

export default createServerRenderer(params => {
	const { AppServerModule, AppServerModuleNgFactory, LAZY_MODULE_MAP } = (module as any).exports;


	const providers = [
		provideModuleMap(LAZY_MODULE_MAP),
		{ provide: INITIAL_CONFIG, useValue: { document: params.data.originalHtml, url: params.url } },
		{ provide: APP_BASE_HREF, useValue: params.baseUrl },
		{ provide: 'BASE_URL', useValue: params.origin + params.baseUrl }
	];

	const cachedEntry = cache.get(params.url);
	if (cachedEntry) {
		return new Promise<RenderResult>((resolve) => {
			resolve(cachedEntry);
		})
	}

	const renderPromise = AppServerModuleNgFactory
		? /* AoT */ platformDynamicServer(providers).bootstrapModuleFactory(AppServerModuleNgFactory)
		: /* dev */ platformDynamicServer(providers).bootstrapModule(AppServerModule);

	return renderPromise.then(moduleRef => {
		const appRef: ApplicationRef = moduleRef.injector.get(ApplicationRef);
		const state = moduleRef.injector.get(PlatformState);
		const zone = moduleRef.injector.get(NgZone);

		// this will get the instance of the HttpStatusCodeService created for this request.
		const statusCodeService = moduleRef.injector.get(SSRResponseStatusCodeService);

		return new Promise<RenderResult>((resolve, reject) => {
			zone.onError.subscribe((errorInfo: any) => reject(errorInfo));
			appRef.isStable.pipe(first(isStable => isStable))
				.subscribe(() => {
					// Because 'onStable' fires before 'onError', we have to delay slightly before
					// completing the request in case there's an error to report
					setImmediate(() => {
						const result = {
							html: state.renderToString(),
							// this will get the currently set status code and return it along with the prerendered html string
							statusCode: statusCodeService.getStatusCode()
						}
						cache.put(params.url, result, 20 * 60 * 1000);
						resolve(result);
                                                //REMOVING this destroy will solve the problem for angular 9
						moduleRef.destroy();
					});
				});
		});
	});
});

NodeInvocationException: Uncaught (in promise): Error: Injector has already been destroyed. Error: Injector has already been destroyed.

Angular CLI: 9.1.9
Node: 12.13.1
OS: win32 x64

Angular: 9.1.11
... animations, common, compiler, compiler-cli, core, forms
... language-service, localize, platform-browser
... platform-browser-dynamic, platform-server, router
Ivy Workspace: Yes

Package                                    Version
--------------------------------------------------------------------
@angular-devkit/architect                  0.901.9
@angular-devkit/build-angular              0.901.9
@angular-devkit/build-optimizer            0.901.9
@angular-devkit/build-webpack              0.901.9
@angular-devkit/core                       9.1.9
@angular-devkit/schematics                 9.1.9
@angular/cdk                               9.2.4
@angular/cli                               9.1.9
@angular/flex-layout                       9.0.0-beta.31
@angular/material                          9.2.4
@ngtools/webpack                           9.1.9
@nguniversal/aspnetcore-engine             9.1.1
@nguniversal/builders                      9.1.1
@nguniversal/common                        9.1.1
@nguniversal/express-engine                9.1.1
@nguniversal/module-map-ngfactory-loader   8.2.6
@schematics/angular                        9.1.9
@schematics/update                         0.901.9
rxjs                                       6.5.5
typescript                                 3.8.3
webpack                                    4.43.0