app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var swaggerJSDoc = require('swagger-jsdoc');

var routes = require('./routes/index');

var app = express();

// swagger definition
var swaggerDefinition = {
  info: {
    title: 'Node Swagger API',
    version: '1.0.1',
    description: 'Demonstrating how to desribe a RESTful API with Swagger',
  },
  host: 'localhost:3000',
  basePath: '/',
};

// options for the swagger docs
var options = {
  // import swaggerDefinitions
  swaggerDefinition: swaggerDefinition,
  // path to the API docs
  apis: ['./routes/*.js'],
};

// initialize swagger-jsdoc
var swaggerSpec = swaggerJSDoc(options);

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);

app.get('/swagger.json', function(req, res) {
  res.setHeader('Content-Type', 'application/json');
  res.send(swaggerSpec);
});

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status( err.code || 500 )
    .json({
      status: 'error',
      message: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500)
  .json({
    status: 'error',
    message: err.message
  });
});


module.exports = app;