server.js

const express = require('express');

const app = express();

const port = 3030;

const axios = require('axios');

const path = require('path');

const CircularJSON = require('circular-json');

const getEvents = (options = {}) => {

  try {

    console.log('http://open-api.myhelsinki.fi/v1/events/?limit=25' + options);

    return axios.get('http://open-api.myhelsinki.fi/v1/events/' + options).then(response => CircularJSON.stringify(response.data))

  }

  catch (error) {

    console.error('Axios error: ' + error)

  }

}

app.use(function (req, res, next) {

  res.setHeader("Access-Control-Allow-Origin", "*");

  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");

  next();

});

app.get('/api/events/', async (req, res, next) => {

  console.log(req.query);

  let options = '?'

  for (let key in req.query) {

    if (options != '?') {

      options += '&'

    }

    options += key + '=' + encodeURIComponent(req.query[key]);

  }

  try {

    const events = await getEvents(options)

    res.json(JSON.parse(events));

  }

  catch (error) {

    next(error)

  }

});


app.listen(port, () => console.log('Server running in port: ' + port));