index.js

require('dotenv').config()
const express = require("express");
const rateLimit = require('express-rate-limit')
const axios = require("axios");
const cors = require("cors");
const app = express();

const port = 7417;
const API_KEY = process.env.API_KEY

const limiter = rateLimit({
  windowMs: 1000,
  max: 1,
});

app.use(limiter);

const allowedOrigins = ['https://weatherwiseapp.vercel.app'];

app.use((req, res, next) => {
  const origin = req.get('Origin');
  if (allowedOrigins.includes(origin)) {
    res.setHeader('Access-Control-Allow-Origin', origin);
    res.setHeader('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
    next();
  } else {
    res.status(403).send('Forbidden');
  }
});

app.get("/weather", async (req, res) => {

  try {
    const latitude = req.query.latitude;
    const longitude = req.query.longitude;

    const [weatherAPIResponse, openMeteoResponse] = await Promise.all([
      axios.get(
        `http://api.weatherapi.com/v1/current.json?key=${API_KEY}&q=${latitude},${longitude}`
      ),
      axios.get(
        `https://api.open-meteo.com/v1/forecast?latitude=${latitude}&longitude=${longitude}&timezone=auto&daily=weathercode,temperature_2m_max,temperature_2m_min,precipitation_probability_max`
      )
    ]);

    if (weatherAPIResponse.status === 200 && openMeteoResponse.status === 200) {
      const weatherAPIData = await weatherAPIResponse.data;
      const openMeteoData = await openMeteoResponse.data;

      weatherAPIData.daily = openMeteoData.daily;

      res.json(weatherAPIData);
    }
  } catch (error) {
    res.status(500).json(error);
  }
});

app.listen(port);