问Google与WorldWeatherOnline API混淆

EN

'use strict';
const http = require('http');
const host = 'api.worldweatheronline.com';
const wwoApiKey = '[api key]';
exports.weatherWebhook = (req, res) => {
  // Get the city and date from the request
  let city = req.body.result.parameters['geo-city']; // city is a required param
  // Get the date for the weather forecast (if present)
  let date = '';
 if (req.body.result.parameters['date']) {
date = req.body.result.parameters['date'];
console.log('Date: ' + date);
  }
  // Call the weather API
  callWeatherApi(city, date).then((output) => {
// Return the results of the weather API to API.AI
res.setHeader('Content-Type', 'application/json');
res.send(JSON.stringify({ 'speech': output, 'displayText': output }));
 }).catch((error) => {
// If there is an error let the user know
res.setHeader('Content-Type', 'application/json');
res.send(JSON.stringify({ 'speech': error, 'displayText': error }));
 });
};
function callWeatherApi (city, date) {
  return new Promise((resolve, reject) => {
// Create the path for the HTTP request to get the weather
let path = '/premium/v1/weather.ashx?format=json&num_of_days=1' +
  '&q=' + encodeURIComponent(city) + '&key=' + wwoApiKey + '&date=' + date;


console.log('API Request: ' + host + path);
// Make the HTTP request to get the weather
http.get({host: host, path: path}, (res) => {
  let body = ''; // var to store the response chunks
  res.on('data', (d) => { body += d; }); // store each response chunk
  res.on('end', () => {
    // After all the data has been received parse the JSON for desired data


    let response = JSON.parse(body);
    let forecast = response['data']['weather'][0];
    let minTemp = forecast['mintempC'];
    let maxTemp = forecast['maxtempC'];
    let unit = '°C'; 
    let location = response['data']['request'][0];
    //get country
    let country = location['query'].split(",")[1];

    let conditions = response['data']['current_condition'][0];
    let currentConditions = conditions['weatherDesc'][0]['value'];

    if(country == "Liberia" || country == "Myanmar" || country == "United States of America")
    {
        minTemp = forecast['mintempF'];
        maxTemp = forecast['maxtempF'];
        unit = '°F';
    }

    // Create response
  let output =
   `Current conditions in the ${location['type']} 
    ${location['query']} are ${currentConditions} with a projected high of
    ${maxTemp} ${unit} and a low of 
    ${minTemp}${unit} on 
    ${forecast['date']} in ${country}`;
    // Resolve the promise with the output text
    console.log(output);
    resolve(output);
  });
  res.on('error', (error) => {
    reject(error);
  });
});
 });
}