I created a function to store latitude and longitude into global variables, so that I could pass them as parameters in another function, but I failed to make it work. I fixed the issue by putting my one function into the other, but am confused to as to why my original way didn't work?
The code below is from when the values being passed into the getWeather function, were not the values that should have been stored in the global variables, by the getCordinates function.
---Main app stars here---
console.log("Server starting")
const yargs = require("yargs");
const geocode = require("./geocode/geocode");
const weather = require("./weather/weather");
const request = require('request');
let cordinates = {
lat: 0,
lng: 0
}
const argv = yargs.options({
a:{
demand: true,
alias: 'address',
describe: 'Address to fetch weather for',
string: true
}
}).help().alias('help', 'h').argv;
geocode.getCordinates(argv.a, (errorMessage, results) => {
if(errorMessage){
console.log(errorMessage);
console.log(results)
}else{
console.log(`${results.address} - ${results.city} ${results.state}, ${results.country}`)
}
});
weather.getWeather(cordinates.lat, cordinates.lng, (errorMessage, weatherResults) => {
if(errorMessage){
console.log(errorMessage);
console.log(results);
} else {
console.log(`The current temperature is ${weatherResults.temp} degrees celcius, and it feels like ${weatherResults.feelsLike}.`)
}
});
---main app ends here ---
---getCordinates function starts here---
var getCordinates = (address, callback) =>{
request({
url: `http://www.mapquestapi.com/geocoding/v1/address?key=Dfgu2XcWvcvlYAbkz3B8gXr2z6SfTKtO&location=${encodeURIComponent(address)}`,
json: true
}, (error, response, body) => {
if(error){
callback("Unable to connect to mapquest servers.", "Jack make big fart will be passed to the callback function as the results parameter.")
}else if(body.info.statuscode !== 0 && body.info.statuscode !== 200){
callback("This location does not exist, please try again");
} else{
callback(undefined, {
address: body.results[0].providedLocation.location.toUpperCase(),
city:body.results[0].locations[0].adminArea5,
state:body.results[0].locations[0].adminArea3,
country:body.results[0].locations[0].adminArea1,
lat:body.results[0].locations[0].latLng.lat,
long:body.results[0].locations[0].latLng.lng
});
}
});
}
---getCordinates function ends here---
---getWeather function starts here---
let tempConverter = (farenheit) => {
return Math.round((farenheit - 32) * 5 / 9)
};
let getWeather = (latitude, longitude, callback) =>{
request({
url:`https://api.darksky.net/forecast/d32506e0e791e1ea3d7f55f24f43b2ba/${latitude},${longitude}`,
json:true
}, (error, response, body) => {
if(error){
callback("Unable to connect to forecast.io servers.", error)
}else if(response.statusCode === 400){
callback(body.error)
}else if(response.statusCode === 403){
callback(response.statusCode, response.statusMessage)
}else {
callback(undefined, {
temp: tempConverter(body.currently.temperature),
feelsLike: tempConverter(body.currently.apparentTemperature)
});
}
});
};
EDIT: I added the other pieces of code. Sorry I didnt add it before!
