app.js

const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const mongoose = require('mongoose');
require('dotenv').config()

const swaggerUi = require('swagger-ui-express');
const swaggerDocument = require('./swagger.json');

const indexRouter = require('./routes/index');
const apiRouter = require('./routes/api')
const fakeUserRouter = require('./routes/fakeuser')

const app = express();

mongoose.Promise = global.Promise;
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocument));

establishDatabaseConnection();

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

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')));

app.use('/', indexRouter);
app.use('/api', apiRouter);

app.use('/api/fakeuser', fakeUserRouter);
app.use('/api/crypto', apiRouter);

// 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' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

async function establishDatabaseConnection() {
  try {
    await mongoose.connect(process.env.DB_URL,{ useNewUrlParser: true }, (err) => {});
  } catch (e) {
    console.log("Could not connect to the database. Error...", e);
    process.exit();
  } finally {
    console.log("Successfully connected to the database");
  }
}

module.exports = app;