import 'zone.js/dist/zone-node'; import { ngExpressEngine } from '@nguniversal/express-engine'; import * as express from 'express'; import * as compression from 'compression'; import { join } from 'path'; import { AppServerModule } from './src/main.server'; import { APP_BASE_HREF } from '@angular/common'; import { existsSync } from 'fs'; import * as prom from "prom-client"; import {routes} from "./routes"; import {REQUEST, RESPONSE} from "./src/app/openaireLibrary/utils/tokens"; // The Express app is exported so that it can be used by serverless Functions. export function app() { const server = express(); server.use(compression()); const distFolder = join(process.cwd(), 'dist/explore/browser'); const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index'; const register = new prom.Registry(); const responses = new prom.Counter({ name: 'portal_http_responses_total', help: 'A counter for portal response codes for every existed or not existed pages.', labelNames: ['route', 'code'], registers: [register] }); const histogram = new prom.Histogram({ name: 'portal_http_request_duration_seconds', help: 'A Histogram for a portal. Providing information about page visits and load latency in seconds.', labelNames: ['route'], registers: [register], buckets: [0.1, 0.2, 0.5, 1, 2] }); // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine) server.engine('html', ngExpressEngine({ bootstrap: AppServerModule, })); server.set('view engine', 'html'); server.set('views', distFolder); // Example Express Rest API endpoints // server.get('/api/**', (req, res) => { }); // Serve static files from /browser server.get('*.*', express.static(distFolder, { maxAge: '1y' })); server.get('/metrics', (req, res) => { res.set('Content-Type', register.contentType); res.end(register.metrics()); }); // All regular routes use the Universal engine server.get('*', (req, res) => { if (routes.indexOf(req.path) !== -1) { const end = histogram.startTimer({route: req.path}); res.render(indexHtml, { req, providers: [ { provide: APP_BASE_HREF, useValue: req.baseUrl }, { provide: REQUEST, useValue: (req) }, { provide: RESPONSE, useValue: (res) } ] } ); res.on('finish', function () { responses.inc({route: req.path, code: res.statusCode}); end(); }); } else { res.render(indexHtml, { req, providers: [ { provide: APP_BASE_HREF, useValue: req.baseUrl }, { provide: REQUEST, useValue: (req) }, { provide: RESPONSE, useValue: (res) } ] } ); res.on('finish', function () { responses.inc({route: '**', code: res.statusCode}); }); } }); return server; } function run() { const port = process.env.PORT || 4000; // Start up the Node server const server = app(); server.listen(port, () => { console.log(`Node Express server listening on http://localhost:${port}`); }); } // Webpack will replace 'require' with '__webpack_require__' // '__non_webpack_require__' is a proxy to Node 'require' // The below code is to ensure that the server is run only when not requiring the bundle. declare const __non_webpack_require__: NodeRequire; const mainModule = __non_webpack_require__.main; const moduleFilename = mainModule && mainModule.filename || ''; if (moduleFilename === __filename || moduleFilename.includes('iisnode')) { run(); } export * from './src/main.server';