parsedWeatherData.js

gistfile1.txt

const fs = require('fs');
const axios = require('axios');
const xml2js = require('xml2js-es6-promise');

let weatherData;

const extraDataMap = (status, data) => {
    return {
        status: status,
        time: data.$.time,
        coordinates: [
            +data.location[0].longitude[0].$.value,
            +data.location[0].latitude[0].$.value,
        ],
        radius: +data.intensity_structure[0].structure[0].wind_distribution[0].dir[0].radius[0].$.value,
    };
};

const getAndParse = async function() {
    const apiResult = await axios('http://www.somehost/weather_data.xml');
    weatherData = await xml2js(apiResult.data);
    const typhinfo = weatherData.cwbtyphfcst.typhinfo;
    const typhoonData = typhinfo[0].typhoon[0].typhdata[0];
    let pastData = typhoonData.past[0].point;
    let currData = typhoonData.curr[0].point;
    let fcstData = typhoonData.fcst[0].point;
    pastData = pastData.map(extraDataMap.bind(this, 'past'));
    currData = currData.map(extraDataMap.bind(this, 'curr'));
    fcstData = fcstData.map(extraDataMap.bind(this, 'fcst'));
    const parsedWeatherData = {
        pastData,
        currData,
        fcstData,
    };
    console.log('parsedWeatherData', parsedWeatherData);
    fs.writeFile('./parsedWeatherData.json', JSON.stringify(parsedWeatherData, 0, 4), (err) => err && console.log('err', err));
};

getAndParse();