monitor-dashboard/server.ts

import 'zone.js/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 {REQUEST, RESPONSE} from "./src/app/openaireLibrary/utils/tokens";
import {properties} from "./src/environments/environment";
import {statsToolParser} from "./src/stats-tool-parser";
import axios from "axios";
import {Stakeholder} from "./src/app/openaireLibrary/monitor/entities/stakeholder";
import {IndicatorUtils} from "./src/app/utils/indicator-utils";

var bodyParser = require('body-parser');
var jsonParser = bodyParser.json();

// 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/monitor-dashboard/browser');
  const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
  
  // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
  server.engine('html', ngExpressEngine({
    bootstrap: AppServerModule,
    inlineCriticalCss: false
  }));
  
  server.set('view engine', 'html');
  server.set('views', distFolder);
  
  server.use('/cache', function (req, res, next) {
    res.header('Access-Control-Allow-Origin', req.headers.origin);
    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
    res.header('Access-Control-Allow-Methods', 'GET, OPTIONS, POST, DELETE');
    res.header('Access-Control-Max-Age', "1800");
    next();
  });
  
  server.post('/cache/:alias', jsonParser, async (req, res) => {
    let stakeholder:Stakeholder = (await axios.get<Stakeholder>(properties.monitorServiceAPIURL + '/stakeholder/' + encodeURIComponent(req.params.alias))).data;
    let list = [];
    let indicatorUtils = new IndicatorUtils();
    if(stakeholder) {
      stakeholder.topics.forEach(topic => {
        topic.categories.forEach(category => {
          category.subCategories.forEach(subCategory => {
            subCategory.numbers.forEach(section => {
              section.indicators.forEach(indicator => {
                indicator.indicatorPaths.forEach(indicatorPath => {
                  let url = indicatorUtils.getFullUrl(stakeholder, indicatorPath);
                  list.push(url);
                });
              });
            });
            subCategory.charts.forEach(section => {
              section.indicators.forEach(indicator => {
                indicator.indicatorPaths.forEach(indicatorPath => {
                  let url = indicatorUtils.getFullUrl(stakeholder, indicatorPath);
                  list.push(url);
                });
              });
            });
          });
        });
      });
    } else {
      res.status(404).send('Stakeholder has not been found');
    }
    /*let [url, json] = req.body.url.split('?json=');
    json = decodeURIComponent(json);
    json = statsToolParser(JSON.parse(json));
    const response = axios.post(url, json).then((data) => {
      console.log(data);
    });*/
    res.send(list);
  });
  
  // Example Express Rest API endpoints
  // server.get('/api/**', (req, res) => { });
  // Serve static files from /browser
  server.get('*.*', express.static(distFolder, {
    maxAge: '1y'
  }));
  
  // All regular routes use the Universal engine
  server.get('*', (req, res) => {
    res.render(indexHtml, {
        req, providers: [
          {
            provide: APP_BASE_HREF,
            useValue: req.baseUrl
          },
          {
            provide: REQUEST, useValue: (req)
          },
          {
            provide: RESPONSE, useValue: (res)
          }
        ]
      }
    );
  });
  
  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';