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app-promise.js
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app-promise.js
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const yargs = require('yargs');
const axios = require('axios');
const geocode = require('./geocode/geocode');
const weather = require('./weather/weather');
const argv = yargs
.options({
address: {
demand: true,
alias: 'a',
describe: 'Address to fetch the weather for',
string: true
}
})
.help()
.alias('help', 'h')
.argv;
var encodedAddress = encodeURIComponent(argv.address);
var geocodeURL = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}`;
axios.get(geocodeURL).then((response) => {
if(response.data.status === 'ZERO_RESULTS') {
throw new Error('Unable to find that address'); // Throwing to catch block
}
var lat = response.data.results[0].geometry.location.lat;
var lng = response.data.results[0].geometry.location.lng;
var weatherURL = `https://api.darksky.net/forecast/<YOUR_API_KEY>/${lat},${lng}?units=si`;
console.log(response.data.results[0].formatted_address);
return axios.get(weatherURL);
}).then((response) => {
var temperature = response.data.currently.temperature;
var apparentTemperature = response.data.currently.apparentTemperature;
console.log(`It's currently ${temperature}.C but feels like ${apparentTemperature}.C`);
}).catch((errorMsg) => {
if(errorMsg.code === 'ENOTFOUND') {
console.log('Unable to connect to API servers');
} else {
console.log(errorMsg.message); // Catching the ZERO_RESULTS error
}
});