chatgpt-cnb-response.js

const fs = require('fs');

// Read the text file
const fileContent = fs.readFileSync('exchange_rates.txt', 'utf-8');

// Split the content by new lines to get individual rows
const rows = fileContent.split('\n');

// Initialize an empty array to store the currency data
const currencyData = [];

// Extract currency and exchange rate from each row
for (let i = 1; i < rows.length; i++) {
  const row = rows[i].split('|');
  const currency = row[1];
  const exchangeRate = parseFloat(row[4].replace(',', '.'));

  // Add currency and exchange rate as an object to the array
  currencyData.push({ currency, exchangeRate });
}

// Create a Prometheus exporter endpoint
const express = require('express');
const app = express();
const port = 8080;

app.get('/metrics', (req, res) => {
  // Generate Prometheus metrics format
  let metrics = '';
  currencyData.forEach(data => {
    metrics += `exchange_rate{currency="${data.currency}"} ${data.exchangeRate}\n`;
  });

  res.setHeader('Content-Type', 'text/plain');
  res.send(metrics);
});

// Start the server
app.listen(port, () => {
  console.log(`Prometheus exporter is running on port ${port}`);
});