const express = require('express');

const { getHistoricalRates } = require('dukascopy-node');

const app = express();

const port = 3000;

app.post('/historical', async (req, res) => {

const { instrument, from, to, timeframe, priceType, format, utcOffset, volumes, volumeUnits, flats, cache, cachePath, retries, retryOnEmpty, noFailAfterRetries, retryPause, debug, silent, inline, fileName, dateFormat, timeZone } = req.body;

if (!instrument || !from || !to) {

return res.status(400).json({ error: 'Missing required parameters: instrument, from, or to' });

}

try {

const options = {

instrument: instrument.toLowerCase(),

dates: {

from: new Date(from),

to: new Date(to),

},

timeframe: timeframe || 'd1',

priceType: priceType || 'bid',

utcOffset: utcOffset || 0,

volumes: volumes || false,

volumeUnits: volumeUnits || 'millions',

flats: flats || false,

cache: cache || false,

cachePath: cachePath || './.dukascopy-cache',

retries: retries || 0,

retryOnEmpty: retryOnEmpty || false,

noFailAfterRetries: noFailAfterRetries || false,

retryPause: retryPause || 500,

debug: debug || false,

silent: silent || false,

inline: inline || false,

fileName: fileName || '',

dateFormat: dateFormat || '',

timeZone: timeZone || ''

};

const data = await getHistoricalRates(options);

res.json(data);

} catch (err) {

console.error('Download error:', err);

console.error('Request body:', req.body);

console.error('Error stack:', err.stack);

res.status(500).json({ error: err.message });

}

app.get('/', (req, res) => {

res.send('Dukascopy Loader API is running!');

app.listen(port, '0.0.0.0', () => {

console.log(`Server is running on port ${port}`);