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app.js
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app.js
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var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
const qr = require("qrcode");
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');
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('/users', usersRouter);
app.post("/scan", (req, res) => {
console.log(req.body);
const data = req.body;
const formattedString = Object.entries(data)
.map(([key, value]) => `${key}:${value}`)
.join(",\n");
console.log(formattedString);
if (formattedString.length === 0) res.send("Empty Data!");
qr.toDataURL(formattedString, (err, src) => {
if (err) res.send("Error occured");
res.render("scan", { title: 'QR Code Generator', src });
});
});
app.post("/dynamic", (req, res) => {
console.log(req.body);
const json = req.body;
JSON.stringify(json)
try {
var result = '';
if (Array.isArray(json.fieldName)) {
for (var i = 0; i < json.fieldName.length; i++) {
result += json.fieldName[i] + ':' + json.fieldValue[i];
if (i !== json.fieldName.length - 1) {
result += ', ';
}
}
} else {
result += json.fieldName + ':' + json.fieldValue;
}
if (result.length === 0) res.send("Empty Data!");
qr.toDataURL(result, (err, src) => {
if (err) res.send("Error occured");
res.render("scan", { title: 'QR Code Generator', src });
});
} catch (error) {
console.log(error);
}
});
// catch 404 and forward to error handler
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);
res.render('error');
});
module.exports = app;