/
app.js
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/
app.js
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/**
* Created by Yash 1300 on 16-04-2018.
*/
const mongoose = require('mongoose');
const express = require('express');
const logger = require('morgan');
const compression = require('compression');
const helmet = require('helmet');
const bodyParser = require('body-parser');
const authRouter = require('./routes/authRoutes');
const studentRouter = require('./routes/studentRoutes');
const teacherRouter = require('./routes/teacherRoutes').router;
const teacherRouterUntoken = require('./routes/teacherRoutes').untoken_router;
const SkillTransactions = require('./database/skill/skillTransactions');
try {
var config = require('./config');
} catch (e) {
console.log("Unable to access config variables");
}
const DB = process.env.DB || config.DB;
const port = process.env.PORT || 8000;
const app = express();
// Setting up connection to the database
mongoose.connect(DB, err => {
if (err)
console.log("Error occurred while connecting to the database ! ");
else {
console.log("Connection established to the database...");
// Attaching body parser for reading request bodies
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));
// Attaching a logger to the project
app.use(logger('dev'));
// Attaching "helmet" to the project to secure various HTTP headers
// Attaching "compression" to the project to compress the requests passing through middlewares
app.use(helmet());
app.use(compression());
// Attaching the routers to specific base routes
app.use('/authenticate', authRouter);
app.use('/student', studentRouter);
app.use('/teacher', teacherRouter);
app.use('/untoken/teacher', teacherRouterUntoken);
app.post('/addskill', (req, res) => {
let name = req.body.skill;
SkillTransactions.addASkill(name, (err) => {
if (err) {
console.error(err);
if (err.code === 11000)
res.json({success: false, message: "A skill already exists with the same name"});
else
res.json({success: false, message: "An error occurred"});
} else {
res.json({success: true, message: `${name} successfully added as a skill`});
}
});
});
// Setting up the error handler
app.use((req, res, next) => {
const err = new Error('Not Found');
err.status = 404;
next(err);
});
app.use((err, req, res, next) => {
res.locals.message = err.message;
console.log(err);
res.locals.error = req.app.get('env') === 'development' ? err : {};
res.status(err.status || 500);
res.send('error');
});
// Starting the server on the specified port
app.listen(port, () => {
console.log("App running successfully on port number: " + port + "...");
});
}
});