server.js

'use strict';

if (process.env.NODE_ENV !== `production`) {
  require(`dotenv`).config();
}

const express = require(`express`);
const path = require(`path`);
const logger = require(`morgan`);
const cookieSession = require(`cookie-session`);
const cookieParser = require(`cookie-parser`);
const bodyParser = require(`body-parser`);
const passport = require(`passport`);
const GoogleStrategy = require(`passport-google-oauth20`);
const compression = require(`compression`);
const api = require(`./routes/api`);
const db = require(`./db/queries/users`);

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

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(cookieSession({
  name: `session`,
  secret: process.env.SECRET,
  httpOnly: false,
}));
app.use(passport.initialize());

passport.serializeUser((user, done) => {
  done(null, user);
});

passport.deserializeUser((obj, done) => {
  done(null, obj);
});

passport.use(
  new GoogleStrategy({
    clientID: process.env.CLIENT_ID,
    clientSecret: process.env.CLIENT_SECRET,
    callbackURL: `${process.env.HOST}/api/auth/google/callback`,
  },
  (accessToken, refreshToken, profile, done) => {
    const user = {
      google_token: accessToken,
      google_id: profile.id,
      display_name: profile.displayName,
    };

    db.readUser(user.google_id)
    .then((result) => {
      if (result) {
        db.updateUser(user.google_id, { google_token: user.google_token })
        .then((updated) => done(null, updated))
        .catch((e) => console.warn(e));
      }
      else {
        db.createUser(user)
        .then((newb) => done(null, newb[0]))
        .catch((err) => console.warn(err));
      }
    })
    .catch((error) => console.warn(error));
  })
);

app.use(`/api`, api);

app.get(`*`, (req, res) => {
  res.sendFile(path.join(__dirname, `./public`, `index.html`));
});

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

// error handler
app.use((err, req, res) => {
  // 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`);
});

module.exports = app;