@striven-erp/striven-fileviewer/index.js

A pure javascript fileviewer made for Striven ERP

const path = require('path');
const fs = require('fs');
const app = require('express')();
const PORT = 4200;

const bodyParser = require('body-parser');
const cors = require('cors');
app.use(cors());
app.use(bodyParser.json({limit: '100mb'}));

app.get('/', (req, res) => res.send('WORKING'));

app.post('/temp/file', (req, res) => {
    const filePath = path.join(__dirname, `${req.body.fileName}.${req.body.fileType}`);
    fs.writeFile(filePath, req.body.file, { encoding: 'base64' }, err => { if (err) { console.log(err) } });

    res.send(`http://localhost:4200/temp/file/${req.body.fileName}/${req.body.fileType}`);
})

app.get('/temp/file/:filename/:filetype', (req, res) => {
    const filePath = path.join(__dirname, `${req.params.filename}.${req.params.filetype}`);

    const stream = fs.createReadStream(filePath, { bufferSize: 64 * 1024 });
    stream.pipe(res);

    let errorOccured = false;
    stream.on('error', function (err) {
        errorOccured = true;
    });

    stream.on('close', () => {
        if (!errorOccured) {
            fs.unlink(filePath, (err) => {
                err && console.log(err);
            });
        }
    })
})

app.listen(PORT, () => console.log('Server on.'))