-
Notifications
You must be signed in to change notification settings - Fork 9
/
weather.js
56 lines (49 loc) · 1.19 KB
/
weather.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
// weather.js
var request = require('request');
var sync = require('sync-request');
storage = require('node-persist');
storage.initSync();
//var exports = module.exports = {};
exports.getGeo = function(city, callback) {
var data = getData(city);
callback(data.forecast.city.coord);
};
function dayStr() {
var d= new Date();
var dStr = d.toISOString().substring(0, 10);
return dStr;
}
function getLiveData(city) {
var url = 'http://api.openweathermap.org/data/2.5/forecast/daily?units=metric&cnt=5&q=';
var res = sync('GET', url+city);
data = JSON.parse(res.getBody().toString('utf8'));
return data;
}
function getData(city) {
var data;
if (storage.getItemSync(city)) {
// CACHE FOUND
data = storage.getItemSync(city);
if (data.date < dayStr()) {
// CACHE OUT OF DATE
data = getLiveData(city);
return saveData(city, data);
} else {
// CACHE UP TO DATE
return storage.getItemSync(city);
}
} else {
// NO CACHE
data = getLiveData(city);
return saveData(city, data);
}
}
function saveData(city, data) {
//console.log(city);
//console.log(data);
var d = dayStr();
//console.log(d);
var obj = {date: d, forecast: data};
storage.setItem(city, obj);
return obj;
}