smd.iotkit2.ch / Mbed 2 deprecated YahooWeather

Beispiel Abfrage Yahoo Weather fuer Zuerich

Dependencies:   EthernetInterface mbed-rtos mbed spxml

Fork of HTTP_GET by smd.iotkit2.ch

Mittels Yahoo Weather kann das aktuelle Wetter und eine Vorhersage für einen Bestimmten Ort abgefragt werden.

Links

Beispiel Abfrage Wetter in Zürich

Aufruf mittels curl:

    curl http://query.yahooapis.com/v1/public/yql  \
           -d q="select * from weather.forecast where woeid=784794"    -d format=xml

Antwort als XML von Yahoo:

<?xml version="1.0" encoding="UTF-8"?>
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="1" yahoo:created="2016-07-22T13:17:05Z"
	yahoo:lang="en-US">
	<results>
		<channel>
			<yweather:units xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" distance="mi" pressure="in"
				speed="mph" temperature="F" />
			<title>Yahoo! Weather - Zurich, ZH, CH</title>
			<link>http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-784794/</link>
			<description>Yahoo! Weather for Zurich, ZH, CH</description>
			<language>en-us</language>
			<lastBuildDate>Fri, 22 Jul 2016 03:17 PM CEST</lastBuildDate>
			<ttl>60</ttl>
			<yweather:location xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" city="Zurich"
				country="Switzerland" region=" ZH" />
			<yweather:wind xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" chill="72" direction="150"
				speed="11" />
			<yweather:atmosphere xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" humidity="72"
				pressure="957.0" rising="0" visibility="16.1" />
			<yweather:astronomy xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" sunrise="5:54 am"
				sunset="9:10 pm" />
			<image>
				<title>Yahoo! Weather</title>
				<width>142</width>
				<height>18</height>
				<link>http://weather.yahoo.com</link>
				<url>http://l.yimg.com/a/i/brand/purplelogo//uh/us/news-wea.gif</url>
			</image>
			<item>
				<title>Conditions for Zurich, ZH, CH at 02:00 PM CEST</title>
				<geo:lat xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">47.38427</geo:lat>
				<geo:long xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">8.52959</geo:long>
				<link>http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-784794/</link>
				<pubDate>Fri, 22 Jul 2016 02:00 PM CEST</pubDate>
				<yweather:condition xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="39"
					date="Fri, 22 Jul 2016 02:00 PM CEST" temp="72" text="Scattered Showers" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="4" date="22 Jul 2016"
					day="Fri" high="77" low="66" text="Thunderstorms" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="47" date="23 Jul 2016"
					day="Sat" high="76" low="64" text="Scattered Thunderstorms" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="39" date="24 Jul 2016"
					day="Sun" high="78" low="63" text="Scattered Showers" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="47" date="25 Jul 2016"
					day="Mon" high="77" low="64" text="Scattered Thunderstorms" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="47" date="26 Jul 2016"
					day="Tue" high="75" low="64" text="Scattered Thunderstorms" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="4" date="27 Jul 2016"
					day="Wed" high="75" low="61" text="Thunderstorms" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="30" date="28 Jul 2016"
					day="Thu" high="76" low="60" text="Partly Cloudy" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="30" date="29 Jul 2016"
					day="Fri" high="79" low="59" text="Partly Cloudy" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="39" date="30 Jul 2016"
					day="Sat" high="80" low="58" text="Scattered Showers" />
				<yweather:forecast xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" code="30" date="31 Jul 2016"
					day="Sun" high="78" low="59" text="Partly Cloudy" />
				<description></description>
				<guid isPermaLink="false" />
			</item>
		</channel>
	</results>
</query>

main.cpp@6:e1c6b8b3c527, 2016-07-22 (annotated)

Committer:
marcel1691
Date:
Fri Jul 22 13:14:58 2016 +0000
Revision:
6:e1c6b8b3c527
Parent:
5:f81113cbe930
Child:
7:99e6c4f0a3ff
Umbau auf neuste API Version Yahoo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stefan1691 5:f81113cbe930 1 /** Beispiel Abfrage Yahoo Weather fuer Zuerich
marcel1691 1:2e29a33cd918 2 */
WiredHome 0:fb5060c39dd1 3 #include "mbed.h"
WiredHome 0:fb5060c39dd1 4 #include "HTTPClient.h"
marcel1691 1:2e29a33cd918 5 #include "HTTPText.h"
WiredHome 0:fb5060c39dd1 6 #include "EthernetInterface.h"
stefan1691 5:f81113cbe930 7 #include "spdomparser.hpp"
stefan1691 5:f81113cbe930 8 #include "spxmlnode.hpp"
stefan1691 5:f81113cbe930 9 #include "spxmlhandle.hpp"
WiredHome 0:fb5060c39dd1 10
WiredHome 0:fb5060c39dd1 11 EthernetInterface eth;
stefan1691 3:aad64a4b6ff6 12 // HTTPClient Hilfsklasse
WiredHome 0:fb5060c39dd1 13 HTTPClient http;
stefan1691 3:aad64a4b6ff6 14 // I/O Buffer
marcel1691 1:2e29a33cd918 15 char message[6000];
WiredHome 0:fb5060c39dd1 16
WiredHome 0:fb5060c39dd1 17 DigitalOut myled(LED1);
WiredHome 0:fb5060c39dd1 18
marcel1691 1:2e29a33cd918 19 int main()
marcel1691 1:2e29a33cd918 20 {
stefan1691 5:f81113cbe930 21 printf("\tYahoo Weather\n");
WiredHome 0:fb5060c39dd1 22 eth.init();
WiredHome 0:fb5060c39dd1 23 eth.connect();
WiredHome 0:fb5060c39dd1 24
marcel1691 6:e1c6b8b3c527 25 // Yahoo Weather fuer Zuerich
marcel1691 1:2e29a33cd918 26 while(1)
marcel1691 1:2e29a33cd918 27 {
WiredHome 0:fb5060c39dd1 28 myled = 1;
marcel1691 6:e1c6b8b3c527 29 HTTPText inText( message, sizeof(message) );
marcel1691 6:e1c6b8b3c527 30 // MAP (Argument=Wert)
marcel1691 6:e1c6b8b3c527 31 HTTPMap map;
marcel1691 6:e1c6b8b3c527 32 map.put( "q", "select * from weather.forecast where woeid=784794" );
marcel1691 6:e1c6b8b3c527 33 map.put( "format", "xml" );
marcel1691 6:e1c6b8b3c527 34 int ret = http.post( "https://query.yahooapis.com/v1/public/yql", map, &inText );
marcel1691 1:2e29a33cd918 35 if ( !ret )
marcel1691 1:2e29a33cd918 36 {
stefan1691 5:f81113cbe930 37 // XML Parser
stefan1691 5:f81113cbe930 38 SP_XmlDomParser parser;
stefan1691 5:f81113cbe930 39 // char[] bzw. XML parsen
stefan1691 5:f81113cbe930 40 parser.append( message, strlen( message ) );
stefan1691 5:f81113cbe930 41 SP_XmlHandle rootHandle( parser.getDocument()->getRootElement() );
marcel1691 6:e1c6b8b3c527 42 SP_XmlElementNode * results = rootHandle.getChild( "results" ).toElement();
marcel1691 6:e1c6b8b3c527 43 SP_XmlHandle hresults( results );
marcel1691 6:e1c6b8b3c527 44 SP_XmlElementNode * node = hresults.getChild( "channel" ).toElement();
stefan1691 5:f81113cbe930 45 SP_XmlHandle handle(node);
stefan1691 5:f81113cbe930 46 SP_XmlElementNode * condition = handle.getChild( "item" ).getChild("yweather:condition").toElement();
marcel1691 6:e1c6b8b3c527 47
stefan1691 5:f81113cbe930 48 // Allgemeine Lage, Sonnig, Bewoelkt etc.
stefan1691 5:f81113cbe930 49 printf( "%s, ", condition->getAttrValue("text") );
stefan1691 5:f81113cbe930 50 // Temperatur in Celsius
marcel1691 6:e1c6b8b3c527 51 printf( "%4.2fC, ", (atof( condition->getAttrValue("temp") ) - 32.0) * 0.555555f );
stefan1691 5:f81113cbe930 52 // Datum und Zeit letzte Aktualisierung
stefan1691 5:f81113cbe930 53 printf( "%s\n", condition->getAttrValue("date") );
stefan1691 5:f81113cbe930 54 }
marcel1691 1:2e29a33cd918 55 else
marcel1691 1:2e29a33cd918 56 printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
stefan1691 5:f81113cbe930 57
WiredHome 0:fb5060c39dd1 58 myled = 0;
marcel1691 1:2e29a33cd918 59
WiredHome 0:fb5060c39dd1 60 wait(10);
WiredHome 0:fb5060c39dd1 61 }
stefan1691 5:f81113cbe930 62 //eth.disconnect();
WiredHome 0:fb5060c39dd1 63 }