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var express = require('express')

const morgan = require('morgan');

var app = express()

const os = require('os');

const jwt = require('jsonwebtoken');

var concat = require('concat-stream');

app.set('json spaces', 2);

app.use(morgan('combined'));

app.use(function(req, res, next){

req.pipe(concat(function(data){

req.body = data.toString('utf8');

next();

}));

});

app.all('*', (req, res) => {

const echo = {

path: req.path,

headers: req.headers,

method: req.method,

body: req.body,

cookies: req.cookies,

fresh: req.fresh,

hostname: req.hostname,

ip: req.ip,

ips: req.ips,

protocol: req.protocol,

query: req.query,

subdomains: req.subdomains,

xhr: req.xhr,

os: {

hostname: os.hostname()

}

};

if (process.env.JWT_HEADER) {

const token = req.headers[process.env.JWT_HEADER.toLowerCase()];

if (!token) {

echo.jwt = token;

} else {

const decoded = jwt.decode(token, {complete: true});

echo.jwt = decoded;

}

}

res.json(echo);

});

const server = app.listen(process.env.PORT || 80);

let calledClose = false;

process.on('exit', function () {

if (calledClose) return;

console.log('Got exit event. Trying to stop Express server.');

server.close(function() {

console.log("Express server closed");

});

});

process.on('SIGINT', function() {

console.log('Got SIGINT. Trying to exit gracefully.');

calledClose = true;

server.close(function() {

console.log("Exoress server closed. Asking process to exit.");

process.exit()

});

});