server/app.js

   1 const createError = require('http-errors');
   2 const express = require('express');
   3 const path = require('path');
   4 const cookieParser = require('cookie-parser');
   5 const logger = require('morgan');
   6 const favicon = require('serve-favicon');
   7 const params = require('./config/parameters');
   8
   9 let app = express();
  10
  11 app.use(favicon(path.join(__dirname, "static", "favicon.ico")));
  12
  13 if (app.get('env') === 'development')
  14 {
  15   // Full logging in development mode
  16   app.use(logger('dev'));
  17 }
  18 else
  19 {
  20   // http://dev.rdybarra.com/2016/06/23/Production-Logging-With-Morgan-In-Express/
  21   app.set('trust proxy', true);
  22   // In prod, only log error responses (https://github.com/expressjs/morgan)
  23   app.use(logger('combined', {
  24     skip: function (req, res) { return res.statusCode < 400 }
  25   }));
  26 }
  27
  28 app.use(express.json());
  29 app.use(express.urlencoded({ extended: false }));
  30 app.use(cookieParser());
  31 // Client "prod" files:
  32 app.use(express.static(path.join(__dirname, 'static')));
  33 // Update in progress:
  34 app.use(express.static(path.join(__dirname, 'while_update')));
  35
  36 // In development stage the client side has its own server
  37 if (params.cors.enable)
  38 {
  39   app.use(function(req, res, next) {
  40     res.header("Access-Control-Allow-Origin", params.cors.allowedOrigin);
  41     res.header("Access-Control-Allow-Credentials", true); //for cookies
  42     res.header(
  43       "Access-Control-Allow-Headers",
  44       "Origin, X-Requested-With, Content-Type, Accept"
  45     );
  46     res.header(
  47       "Access-Control-Allow-Methods",
  48       "GET, POST, OPTIONS, PUT, DELETE"
  49     );
  50     next();
  51   });
  52 }
  53
  54 // Routing (AJAX-only)
  55 const routes = require(path.join(__dirname, "routes", "all"));
  56 app.use('/', routes);
  57
  58 // Catch 404 and forward to error handler
  59 app.use(function(req, res, next) {
  60   next(createError(404));
  61 });
  62
  63 // Error handler
  64 app.use(function(err, req, res, next) {
  65   res.status(err.status || 500);
  66   if (app.get('env') === 'development')
  67     console.log(err.stack);
  68   res.send(
  69     "<h1>" + err.message + "</h1>" +
  70     "<h2>" + err.status + "</h2>"
  71   );
  72 });
  73
  74 module.exports = app;