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app.js
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const express = require('express');
const app = express();
const db = require('./db');
const morgan = require('morgan');
const fs = require('fs');
const configs = require('./config');
const expressValidator = require('express-validator');
// routes
const course = require('./routes/course');
const courseChapter = require('./routes/courseChapter');
const courseLecture = require('./routes/courseLecture');
const courseQuiz = require('./routes/courseQuiz');
const user = require('./routes/user');
const auth = require('./auth/AuthController');
const morganLogFullFileName = getMorganLoggerFileName();
const accessLogStream = fs.createWriteStream(morganLogFullFileName, {flags: 'a'});
app.use(morgan('{"remoteAddr":":remote-addr","remoteUser":":remote-user","date":":date","method":":method","url":":url","httpVersion":":http-version","status":":status","resp_cont_len":":res[content-length]","referrer":":referrer","user_agent":":user-agent","response_time":":response-time"}', {stream: accessLogStream}));
app.use(expressValidator({
customValidators : {
isValidMongoId : function(value) {
var regex = /^[0-9a-f]{24}$/;
return regex.test(value);
}
}
})
);
app.use(function (req, res, next) {
// Website you wish to allow to connect
res.setHeader('Access-Control-Allow-Origin', '*');
// Request methods you wish to allow
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
// Request headers you wish to allow
res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type,x-access-token');
// Set to true if you need the website to include cookies in the requests sent
// to the API (e.g. in case you use sessions)
res.setHeader('Access-Control-Allow-Credentials', true);
// Pass to next layer of middleware
next();
});
// route bindings
app.use('/api/users', user);
app.use('/api/auth', auth);
app.use('/api/course',course);
app.use('/api/crsChapters',courseChapter);
app.use('/api/crsQuiz',courseQuiz);
app.use('/api/crsLecture',courseLecture);
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(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);
});
function getMorganLoggerFileName(){
var morganLogDirectory= configs.MORGAN_LOG_DIRECTORY;
var current_date = new Date();
var file_date_ext = current_date.getFullYear()+'_'+(current_date.getMonth()+1)+'_'+current_date.getDate();
var fullFileName = morganLogDirectory + '/access-'+file_date_ext+'.log';
return fullFileName;
}
module.exports = app;