salesforce/canvas/index.ts

/**
 * Copyright 2021 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import cookieParser from 'cookie-parser';
import express from 'express';
import createError from 'http-errors';
import logger from 'morgan';
import path from 'path';

import {mainRouter} from './routers/main';

const app = express();

// view engine setup
app.set('views', path.join(__dirname, '../views'));
app.set('view engine', 'ejs');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, '../public')));

// Routing
app.get('/ping', (req, res) => {
  res.status(200).send('Pong\n');
});

app.use('/main', mainRouter);

// catch 404 and forward to error handler
app.use((req, res, next) => {
  next(createError(404));
});

// error handler
app.use((err, req, res, next) => {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? {} : {};
  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

const PORT = process.env.PORT || 8080;

app.listen(PORT, () => {
  console.log(`Listening on port ${PORT}.`);
});

export default app;