[angular-18 | DONE | FIXED]: Updated libraries | app.module.ts: Replaced provideHttpClient(withInterceptorsFromDi()) with provideHttpClient(withFetch()) | package.json: Changed version of "@types/node" from "^16.18.50" to "18.19.1" | server.ts: Added response codes in server.ts & missing functions for metrics and health-check & fixed configurations.

README.md

@@ -1,6 +1,6 @@
 # Aggregator
 
-This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 7.3.10 and has been updated to 11.2.14.
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 7.3.10 and has been updated to 18.1.0.
 
 ## Install packages
 

package.json

@@ -55,7 +55,7 @@
     "@types/express": "^4.17.0",
     "@types/jasmine": "~3.6.0",
     "@types/jasminewd2": "~2.0.3",
-    "@types/node": "^16.18.50",
+    "@types/node": "^18.19.1",
     "browser-sync": "^3.0.0",
     "codelyzer": "^6.0.0",
     "jasmine-core": "~3.8.0",

server.ts

@@ -6,16 +6,23 @@ import { CommonEngine } from '@angular/ssr';
 import * as express from 'express';
 import { existsSync } from 'node:fs';
 import { join } from 'node:path';
-import bootstrap from './src/main.server';
+import {AppServerModule} from './src/main.server';
+import {REQUEST, RESPONSE} from "./src/app/openaireLibrary/utils/tokens";
+import * as compression from "compression";
+import {Prometheus} from "./prometheus";
+import {Counter} from "prom-client";
 
 // The Express app is exported so that it can be used by serverless Functions.
 export function app(): express.Express {
   const server = express();
+  server.use(compression());
   const distFolder = join(process.cwd(), 'dist/aggregator/browser');
   const indexHtml = existsSync(join(distFolder, 'index.original.html'))
     ? join(distFolder, 'index.original.html')
     : join(distFolder, 'index.html');
 
+  const prometheus: Prometheus = new Prometheus();
+
   const commonEngine = new CommonEngine();
 
   server.set('view engine', 'html');
@@ -28,21 +35,79 @@ export function app(): express.Express {
     maxAge: '1y'
   }));
 
+  server.get('/metrics', (req, res) => {
+    res.set('Content-Type', prometheus.register.contentType);
+    res.end(prometheus.register.metrics());
+  });
+
+  server.get('/health-check', async (_req, res, _next) => {
+    var uptime = process.uptime();
+    const date = new Date(uptime*1000);
+    const days = date.getUTCDate() - 1,
+      hours = date.getUTCHours(),
+      minutes = date.getUTCMinutes(),
+      seconds = date.getUTCSeconds(),
+      milliseconds = date.getUTCMilliseconds();
+
+
+    const healthcheck = {
+      uptime: days + " days, " + hours + " hours, " + minutes + " minutes, " + seconds + " seconds, " + milliseconds + " milliseconds",
+      message: 'OK',
+      timestamp: new Date()
+    };
+    try {
+      res.send(healthcheck);
+    } catch (error) {
+      healthcheck.message = error;
+      res.status(503).send();
+    }
+  });
+
   // All regular routes use the Angular engine
   server.get('*', (req, res, next) => {
     const { protocol, originalUrl, baseUrl, headers } = req;
 
-    commonEngine
-      .render({
-        bootstrap,
+    let start = new Date();
+    let counter: Counter = prometheus.counters.get(req.path);
+    if(counter !== undefined) {
+      counter.inc(1, new Date());
+
+      commonEngine.render({
+        bootstrap: AppServerModule,
+        inlineCriticalCss: false,
         documentFilePath: indexHtml,
         url: `${protocol}://${headers.host}${originalUrl}`,
         publicPath: distFolder,
         providers: [
-          { provide: APP_BASE_HREF, useValue: baseUrl },],
+          {provide: APP_BASE_HREF, useValue: baseUrl},
+          {provide: REQUEST, useValue: (req)},
+          {provide: RESPONSE, useValue: (res)}
+        ],
       })
-      .then((html) => res.send(html))
-      .catch((err) => next(err));
+      .then((html) => {
+        // event triggers when express is done sending response
+        res.on('finish', function() {
+          console.log(new Date().getTime() - start.getTime());
+        });
+        res.status(200).send(html)
+      })
+      .catch((err) => res.status(500).send('Error during SSR'))
+    } else {
+      commonEngine.render({
+        bootstrap: AppServerModule,
+        inlineCriticalCss: false,
+        documentFilePath: indexHtml,
+        url: `${protocol}://${headers.host}${originalUrl}`,
+        publicPath: distFolder,
+        providers: [
+          {provide: APP_BASE_HREF, useValue: baseUrl},
+          {provide: REQUEST, useValue: (req)},
+          {provide: RESPONSE, useValue: (res)}
+        ],
+      })
+      .then((html) => res.status(200).send(html))
+      .catch((err) => res.status(500).send('Error during SSR'))
+    }
   });
 
   return server;
@@ -67,5 +132,3 @@ const moduleFilename = mainModule && mainModule.filename || '';
 if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
   run();
 }
-
-export default bootstrap;

src/app/app.module.ts

@@ -3,7 +3,7 @@ import {SharedModule} from './shared/shared.module';
 import {BrowserModule} from '@angular/platform-browser';
 import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
 import {CommonModule} from '@angular/common';
-import { HTTP_INTERCEPTORS, provideHttpClient, withInterceptorsFromDi } from '@angular/common/http';
+import { HTTP_INTERCEPTORS, provideHttpClient, withFetch } from '@angular/common/http';
 import {AppComponent} from './app.component';
 import {NavigationBarModule} from './openaireLibrary/sharedComponents/navigationBar.module';
 import {CookieLawModule} from './openaireLibrary/sharedComponents/cookie-law/cookie-law.module';
@@ -42,7 +42,7 @@ import {ConfigurationService} from "./openaireLibrary/utils/configuration/config
         },
         [{ provide: HTTP_INTERCEPTORS, useClass: TimeoutInterceptor, multi: true }],
         [{ provide: DEFAULT_TIMEOUT, useValue: 30000 }],
-        provideHttpClient(withInterceptorsFromDi())
+        provideHttpClient(withFetch())
     ] })
 export class AppModule {
 }

src/app/openaireLibrary

@@ -1 +1 @@
-Subproject commit 5f691d18c4ed14f23c35cbdb9746d9d5cd71b221
+Subproject commit 6e7f450cf2dd7a15b5d040822939189f6f667097

src/assets/common-assets

@@ -1 +1 @@
-Subproject commit eb0051dc347cdaa44476048dea9f6b61200f257f
+Subproject commit a88e24accc23599b43577994011e424eb693e817