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Use Weather Underground astronomy data for sun rise/set

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Changes discussed in issue #3
This commit is contained in:
Samer Albahra
2015-07-23 18:25:23 -05:00
parent eeae47ef5d
commit 9ef4cb759b
3 changed files with 45 additions and 28 deletions
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1
package.json
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@@ -12,7 +12,6 @@
"express": "^4.13.0",
"grunt": "^0.4.5",
"mongoose": "^4.0.6",
"suncalc": "^1.6.0",
"xml2js": "^0.4.9"
},
"devDependencies": {

41
routes/weather.js
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@@ -1,5 +1,4 @@
var http = require( "http" ),
SunCalc = require( "suncalc" ),
parseXML = require( "xml2js" ).parseString,
Cache = require( "../models/Cache" ),
@@ -41,39 +40,29 @@ function resolveCoordinates( location, callback ) {
// Retrieve weather data to complete the weather request using Weather Underground
function getWeatherUndergroundData( location, weatherUndergroundKey, callback ) {
// Generate URL using The Weather Company API v1 in Imperial units
// Generate URL using Weather Underground yesterday conditions
var url = "http://api.wunderground.com/api/" + weatherUndergroundKey +
"/yesterday/conditions/q/" + encodeURIComponent( location ) + ".json";
"/yesterday/conditions/astronomy/q/" + encodeURIComponent( location ) + ".json";
// Perform the HTTP request to retrieve the weather data
httpRequest( url, function( data ) {
try {
data = JSON.parse( data );
var tzOffset = getTimezone( data.current_observation.local_tz_offset, "minutes" ),
// Calculate sunrise and sunset since Weather Underground does not provide it
sunData = SunCalc.getTimes( data.current_observation.local_epoch * 1000,
data.current_observation.observation_location.latitude || data.current_observation.display_location.latitude,
data.current_observation.observation_location.longitude || data.current_observation.display_location.longitude );
sunData.sunrise.setUTCMinutes( sunData.sunrise.getUTCMinutes() + tzOffset );
sunData.sunset.setUTCMinutes( sunData.sunset.getUTCMinutes() + tzOffset );
var weather = {
icon: data.current_observation.icon,
timezone: data.current_observation.local_tz_offset,
sunrise: ( sunData.sunrise.getUTCHours() * 60 + sunData.sunrise.getUTCMinutes() ),
sunset: ( sunData.sunset.getUTCHours() * 60 + sunData.sunset.getUTCMinutes() ),
maxTemp: parseInt( data.history.dailysummary[0].maxtempi ),
minTemp: parseInt( data.history.dailysummary[0].mintempi ),
temp: parseInt( data.current_observation.temp_f ),
humidity: ( parseInt( data.history.dailysummary[0].maxhumidity ) + parseInt( data.history.dailysummary[0].minhumidity ) ) / 2,
precip: ( parseFloat( data.current_observation.precip_today_in ) || 0 ) + ( parseFloat( data.history.dailysummary[0].precipi ) || 0 ),
solar: parseInt( data.current_observation.UV ),
wind: parseInt( data.history.dailysummary[0].meanwindspdi ),
elevation: parseInt( data.current_observation.observation_location.elevation )
};
icon: data.current_observation.icon,
timezone: data.current_observation.local_tz_offset,
sunrise: parseInt( data.sun_phase.sunrise.hour ) * 60 + parseInt( data.sun_phase.sunrise.minute ),
sunset: parseInt( data.sun_phase.sunset.hour ) * 60 + parseInt( data.sun_phase.sunset.minute ),
maxTemp: parseInt( data.history.dailysummary[0].maxtempi ),
minTemp: parseInt( data.history.dailysummary[0].mintempi ),
temp: parseInt( data.current_observation.temp_f ),
humidity: ( parseInt( data.history.dailysummary[0].maxhumidity ) + parseInt( data.history.dailysummary[0].minhumidity ) ) / 2,
precip: ( parseFloat( data.current_observation.precip_today_in ) || 0 ) + ( parseFloat( data.history.dailysummary[0].precipi ) || 0 ),
solar: parseInt( data.current_observation.UV ),
wind: parseInt( data.history.dailysummary[0].meanwindspdi ),
elevation: parseInt( data.current_observation.observation_location.elevation )
};
callback( weather );

31
test/replies.json
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@@ -20,7 +20,8 @@
"termsofService": "http://www.wunderground.com/weather/api/d/terms.html",
"features": {
"yesterday": 1,
"conditions": 1
"conditions": 1,
"astronomy": 1
}
},
"current_observation": {
@@ -107,6 +108,34 @@
"ob_url": "http://www.wunderground.com/cgi-bin/findweather/getForecast?query=42.408440,-72.504799",
"nowcast": ""
},
"moon_phase": {
"percentIlluminated": "48",
"ageOfMoon": "7",
"phaseofMoon": "Waxing Crescent",
"hemisphere": "North",
"current_time": {
"hour": "18",
"minute": "08"
},
"sunrise": {
"hour": "6",
"minute": "27"
},
"sunset": {
"hour": "20",
"minute": "23"
}
},
"sun_phase": {
"sunrise": {
"hour": "5",
"minute": "24"
},
"sunset": {
"hour": "20",
"minute": "28"
}
},
"history": {
"date": {
"pretty": "July 11, 2015",