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 app.use(express.static(path.join(__dirname, 'static'))); //client "prod" files
  32
  33 // In development stage the client side has its own server
  34 if (params.cors.enable)
  35 {
  36   app.use(function(req, res, next) {
  37     res.header("Access-Control-Allow-Origin", params.cors.allowedOrigin);
  38     res.header("Access-Control-Allow-Credentials", true); //for cookies
  39     res.header("Access-Control-Allow-Headers",
  40       "Origin, X-Requested-With, Content-Type, Accept");
  41     res.header("Access-Control-Allow-Methods", "GET, POST, OPTIONS, PUT, DELETE");
  42     next();
  43   });
  44 }
  45
  46 // Routing (AJAX-only)
  47 const routes = require(path.join(__dirname, "routes", "all"));
  48 app.use('/', routes);
  49
  50 // catch 404 and forward to error handler
  51 app.use(function(req, res, next) {
  52   next(createError(404));
  53 });
  54
  55 // error handler
  56 app.use(function(err, req, res, next) {
  57   // set locals, only providing error in development
  58   res.locals.message = err.message;
  59   res.locals.error = (req.app.get('env') === 'development' ? err : {});
  60   // render the error page
  61   res.status(err.status || 500);
  62   res.send(`
  63     <!doctype html>
  64     <h1>= message</h1>
  65     <h2>= error.status</h2>
  66     <pre>#{error.stack}</pre>
  67   `);
  68 });
  69
  70 module.exports = app;