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const express = require('express');
const cors = require('cors');
const redis = require('redis');
const app = express();
const PORT = 3001;
const redisClient = redis.createClient({
url: 'redis://localhost:6379' // this is default port
});
// CORS
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
next();
});
app.get('/api/prices', async (req, res) => {
try {
const prices = await redisClient.lRange('btc_prices', 0, -1);
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
res.json(prices);
} catch (error) {
console.error('Error fetching prices:', error);
res.status(500).json({ error: 'Internal Server Error' });
}
});
async function startServer() {
await redisClient.connect();
app.listen(PORT, () => {
console.log(`Server running on http://localhost:${PORT}`);
});
}
startServer().catch(console.error);
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