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Server.js
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Server.js
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// Server modules
const fs = require('fs');
const express = require('express');
const path = require('path');
var busboy = require('connect-busboy'); //middleware for form/file upload
// Azure modules
const translate = require("./utils/Language/Translation.js")
const detect = require("./utils/Language/Detection.js");
const analyze = require("./utils/ArtificialVision/TextFromFile.js");
const dictionary = require("./utils/External/Dictionary.js");
const keyPhrases = require("./utils/TextAnalytics/KeyPhrases.js");
// Default language: spanish
LANG_CODE = 'es';
// App
const app = express();
// Default web app port
app.set('port', 4000);
// Log every route visited by the client
function logger(req, res, next) {
console.log(`Received route: ${req.protocol}://${req.get('host')}${req.originalUrl}`);
next();
}
// Middlewares http requests
app.use(express.json());
app.use(express.urlencoded({
extended: true
}));
app.use(busboy());
// Other middlewares
app.use(logger);
// app.use(express.static(path.join(__dirname, 'utils')));
// Initialize web page
app.use(express.static(path.join(__dirname, 'WebPage')));
// Init server
app.listen(app.get('port'), () => {
console.log("Server on port ", app.get('port'));
})
// POST routes
// Analyze some img
app.post('/analyze-img-local', (req, res) => {
var fstream;
var image;
var fileName;
req.pipe(req.busboy);
req.busboy.on('file', function (fieldname, file, filename) {
console.log("Uploading: " + filename);
fileName = filename;
//Path where image will be uploaded
fstream = fs.createWriteStream(path.join(__dirname, '/WebPage/uploads', filename ) );
file.pipe(fstream);
fstream.on('close', function () {
console.log("Upload Finished of " + filename);
// res.redirect('back');
});
fileName = path.join(__dirname, '/WebPage/uploads', fileName );
console.log("File path: ", fileName);
// image = fs.readFile(path.join(__dirname, '/WebPage/uploads', fileName ), function (err, data) {
// if (err) throw err;
// // return data;
// analyze(data)
// .then((value) => {
// console.log(typeof(value));
// console.log("value: ", value);
// res.status(200).send(value);
// })
// .catch((err) => {
// console.log("POST analyze error: ", err);
// res.status(500);
// });
analyze(fileName)
.then((value) => {
console.log(typeof(value));
console.log("value: ", value);
res.status(200).send(value);
})
.catch((err) => {
console.log("POST analyze error: ", err);
res.status(500);
});
});
});
app.post('/analyze-img-remote', (req, res) => {
let data = req.body;
console.log("Data: ", data);
analyze(data.url)
.then((value) => {
console.log(typeof(value));
console.log("value: ", value);
res.status(200).send(value);
})
.catch((err) => {
console.log("POST analyze error: ", err);
res.status(500);
});
});
// Extract key phrases from paragraph
app.post('/key-phrases', (req, res) => {
let data = req.body
console.log(data);
keyPhrases("es", data.text)
.then((value) => {
// Send processed data to front end
console.log("Response: ", value);
res.status(200).send(value);
})
.catch((err) => {
console.log("Error: ", err);
res.status(500);
});
});
// Search and define words
app.post('/oxford-dictionary', (req, res) => {
let data = req.body
console.log("Data: ", data);
dictionary(LANG_CODE, data.word)
.then(response => {
console.log("Response: ", response);
res.status(200).send(response);
})
.catch( res.status(500) );
});
// // Detect language
// app.post('/detect-lang', (req, res) => {
// let data = req.body
// console.log(data);
// // res.send(response_from_azure)
// res.sendStatus(200);
// });
// Translate text
app.post('/translate', (req, res) => {
let data = req.body
console.log("Data: ", data);
// Detect text, translate it and send the result
detect(data.text)
.then(response => {
console.log("Detect response: ", response)
translate(response, LANG_CODE, data.text)
.then(result => {
console.log("Translate response: ", result);
res.status(200).send(result);
})
})
.catch(err => res.status(500));
});