app.js

// Licensed under the Apache 2.0 License. See footer for details.

var express = require('express'),
    // cookieParser = require('cookie-parser'),
    http = require('http'),
    path = require('path'),
    cloudant = require('cloudant'),
    program = require('commander'),
    compression = require('compression'),
    url = require('url');
require('dotenv').load();

var app = express();
app.use(compression());

(function(app) {
    if (process.env.VCAP_SERVICES) {
        var vcapServices = JSON.parse(process.env.VCAP_SERVICES);
        app.set('vcapServices', vcapServices);
        if (vcapServices.cloudantNoSQLDB && vcapServices.cloudantNoSQLDB.length > 0) {
            var service = vcapServices.cloudantNoSQLDB[0];
            if (service.credentials) {
                app.set('cloudant-fieldwork-db', cloudant({
                    username: service.credentials.username,
                    password: service.credentials.password,
                    account: service.credentials.username
                }));
            }
        }
    }
})(app);

// Set the port number based on a command line switch, an environment variable, or a default value
app.set('port', program.port || process.env.PORT || 3000);
// Serve config file
app.get('/mapconfig', function(req, res) {
    var fs = require('fs');
    var mapconfig = JSON.parse(fs.readFileSync('./mapconfig.json', 'utf8'))
    var editlayer = {
        name: 'fieldedits',
        account: 'example.cloudant.com',
        geopath: '_design/SpatialView/_geo/spatial',
        type: 'GeometryCollection',
        key: '',
        password: '',
        style: {
            radius: 12,
            fillColor: '#ff0000',
            fillOpacity: 4,
            color: '#ff0000'
        }
    };

    var vcapServices = app.get('vcapServices');
    if (vcapServices && vcapServices.cloudantNoSQLDB && vcapServices.cloudantNoSQLDB.length > 0) {
        var service = vcapServices.cloudantNoSQLDB[0];
        if (service.credentials) {
            editlayer.account = service.credentials.host;
            editlayer.key = service.credentials.username;
            editlayer.password = service.credentials.password;
            console.log("Got fieldedit credentials for " + editlayer.account + " from vcapServices");
        }
    } else {
        editlayer.account = process.env.CLOUDANT_USER + '.cloudant.com';
        editlayer.key = process.env.CLOUDANT_USER;
        editlayer.password = process.env.CLOUDANT_PASSWORD;
        console.log("Got fieldedit credentials for " + editlayer.account + " from user environment");
    }
    mapconfig.editlayer = editlayer;
    res.send(mapconfig);
});
// Serve static assets
app.use(express.static(path.join(__dirname, 'public')));
// Create the HTTP server
http.createServer(app).listen(app.get('port'), function() {
    console.log('Express server listening on port ' + app.get('port'));
});

//-------------------------------------------------------------------------------
// Copyright IBM Corp. 2015
//
// 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.
//-------------------------------------------------------------------------------