Weather-ChatBot/index.js at master · mmsmhh/Weather-ChatBot · GitHub

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const express = require("express");
const bodyParser = require("body-parser");
const request = require("request");

const OpenWeatherMapHelper = require("openweathermap-node");

const helper = new OpenWeatherMapHelper({
  APPID: "",
  units: "metric",
});

const app = express();

app.set("port", process.env.PORT || 5000);

app.use(
  bodyParser.urlencoded({
    extended: false,
  })
);
app.use(bodyParser.json());

app.post("/dialogflow", function (req, res) {
  if (
    req.body.queryResult &&
    req.body.queryResult.parameters &&
    req.body.queryResult.parameters.geoCountry
  ) {
    return res.json({
      fulfillmentText:
        "Which city in " + req.body.queryResult.parameters.geoCountry + "?",
    });
  } else if (
    req.body.queryResult &&
    req.body.queryResult.parameters &&
    req.body.queryResult.parameters.geoCity
  ) {
    helper.getCurrentWeatherByCityName(
      req.body.queryResult.parameters.geoCity,
      (err, currentWeather) => {
        if (err) {
          console.log(err);
        } else {
          const weatherAndTempreature =
            "The weather in " +
            currentWeather.name +
            " is " +
            currentWeather.weather[0].description +
            " and the tempreature is " +
            Math.ceil(currentWeather.main.temp) +
            "°C";
          return res.json({
            fulfillmentText: weatherAndTempreature,
          });
        }
      }
    );
  } else if (
    req.body.queryResult &&
    req.body.queryResult.parameters &&
    req.body.queryResult.parameters.Latitude &&
    req.body.queryResult.parameters.Longitude
  ) {
    helper.units = "metric";
    helper.getCurrentWeatherByGeoCoordinates(
      req.body.queryResult.parameters.Latitude,
      req.body.queryResult.parameters.Longitude,
      (err, currentWeather) => {
        if (err) {
          console.log(err);
        } else {
          const weatherAndTempreature =
            "The weather in " +
            currentWeather.name +
            " is " +
            currentWeather.weather[0].description +
            " and the tempreature is " +
            Math.ceil(currentWeather.main.temp - 272.15) +
            "°C";

          return res.json({
            fulfillmentText: weatherAndTempreature,
          });
        }
      }
    );
  } else if (
    req.body.queryResult &&
    req.body.queryResult.parameters &&
    req.body.originalDetectIntentRequest.payload.data.postback.data.lat &&
    req.body.originalDetectIntentRequest.payload.data.postback.data.long
  ) {
    helper.units = "metric";
    helper.getCurrentWeatherByGeoCoordinates(
      req.body.originalDetectIntentRequest.payload.data.postback.data.lat,
      req.body.originalDetectIntentRequest.payload.data.postback.data.long,
      (err, currentWeather) => {
        if (err) {
          console.log(err);
        } else {
          const weatherAndTempreature =
            "The weather in " +
            currentWeather.name +
            " is " +
            currentWeather.weather[0].description +
            " and the tempreature is " +
            Math.ceil(currentWeather.main.temp - 272.15) +
            "°C";

          return res.json({
            fulfillmentText: weatherAndTempreature,
          });
        }
      }
    );
  } else {
    return res.json({
      fulfillmentText: "Please enter correct city or Latitude & Longitude",
    });
  }
});

app.listen(app.get("port"), function () {
  console.log("running: port");
});