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JSON Problem

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JSON Problem

Verfasst: 1. Apr 2020 17:15
von kaloschke
Hallo,.

ich möchte aus dem JSON eines http-Request eine Information rausziehen, bekomme dabei aber immer eine "Invalid path" Exception.
Wenn ich das JSON und den Path auf http://jsonpath.com/ teste, erhalte ich das gewünschte Ergebnis.

Mein Item:

Code: Alles auswählen

String RadioState "Value: [%s]" { http="<[http://192.168.2.222:8085/raumserver/data/getRendererState:1000:JSONPATH($.data.0.rooms.0.PowerState)]" }
Mein JSON (bisschen lang, sorry) :

Code: Alles auswählen

{"requestUrl":"/raumserver/data/getRendererState","action":"getRendererState","error":false,"msg":"","data":[{"Mute":0,"InstanceID":0,"RoomStates":"","RoomVolumes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=40","Volume":"40","CurrentTrackMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:raumfeld=\"urn:schemas-raumfeld-com:meta-data/raumfeld\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\" lang=\"en\"><item parentID=\"0/Favorites/MyFavorites\" id=\"0/Favorites/MyFavorites/97\" restricted=\"1\" refID=\"0/RadioTime/Search/s-s8954\"><raumfeld:name>Station</raumfeld:name><upnp:class>object.item.audioItem.audioBroadcast.radio</upnp:class><raumfeld:section>RadioTime</raumfeld:section><raumfeld:durability>120</raumfeld:durability><dc:title>radio ffn</dc:title><upnp:albumArtURI dlna:profileID=\"JPEG_TN\">http://d1i6vahw24eb07.cloudfront.net/s8954q.png</upnp:albumArtURI><raumfeld:ebrowse>http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&amp;formats=wma%2Cmp3%2Cogg&amp;serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&amp;id=s8954&amp;c=ebrowse</raumfeld:ebrowse><res bitrate=\"192\" protocolInfo=\"http-get:*:audio/x-mpegurl:*\">http://opml.radiotime.com/Tune.ashx?id=e110020815&amp;sid=s8954&amp;formats=wma,mp3,ogg&amp;partnerId=7aJ9pvV5&amp;serial=54:4a:16:7f:d3:c5</res></item></DIDL-Lite>\n","CurrentRecordQualityMode":"NOT_IMPLEMENTED","AbsoluteTimePosition":"00:00:00","SecondsUntilSleep":"0","CurrentTrack":"4","AVTransportURIMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\"><item restricted=\"1\"/></DIDL-Lite>\n","PossiblePlaybackStorageMedia":"NETWORK","TransportPlaySpeed":"1","CurrentTrackDuration":"00:00:00","PossibleRecordQualityModes":"NOT_IMPLEMENTED","Bitrate":"192","PossibleRecordStorageMedia":"NONE","AVTransportURI":"dlna-playcontainer://uuid%3A545be55b-1d97-4872-94f0-99c7893bd97a?sid=urn%3Aupnp-org%3AserviceId%3AContentDirectory&cid=0%2FFavorites%2FMyFavorites&md=0&fii=0","RelativeTimePosition":"00:00:00","RelativeCounterPosition":"1","CurrentPlayMode":"NORMAL","TransportState":"STOPPED","AbsoluteCounterPosition":"1","CurrentTransportActions":"","ContentType":"MP3","NumberOfTracks":"4","SleepTimerActive":"0","TransportStatus":"OK","CurrentTrackURI":"http://stream.ffn.de/ffn/mp3-192/stream.mp3?ref=tunein","RoomMutes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=0","rooms":[{"roomUDN":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","Volume":"40","Mute":"0","name":"Kueche","PowerState":"MANUAL_STANDBY","online":true,"udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:de4c540c-f389-4937-ae87-a573ed4e5e6c","mediaItem":{"class":"object.item.audioItem.audioBroadcast.radio","section":"RadioTime","name":"Station","durability":"120","childCount":null,"parentID":"0/Favorites/MyFavorites","id":"0/Favorites/MyFavorites/97","restricted":"1","refID":"0/RadioTime/Search/s-s8954","title":"radio ffn","description":null,"artist":null,"albumArtURI":"http://d1i6vahw24eb07.cloudfront.net/s8954q.png","genre":null,"album":null,"date":null,"creator":null,"originalTrackNumber":null,"bitrate":"192","protocolInfo":"http-get:*:audio/x-mpegurl:*","signalStrength":null,"ebrowse":"http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&formats=wma%2Cmp3%2Cogg&serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&id=s8954&c=ebrowse"},"friendlyName":"Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"},{"InstanceID":0,"AVTransportURIMetaData":"","CurrentTrackDuration":"NOT_IMPLEMENTED","PowerState":"MANUAL_STANDBY","AVTransportURI":"","CurrentPlayMode":"NORMAL","TransportState":"NO_MEDIA_PRESENT","OwnsAudioResource":"0","CurrentTransportActions":"","TransportStatus":"OK","LowDB":"0.000000","Mute":"0","MidDB":"0.000000","Volume":"40","HighDB":"0.000000","rooms":[{"name":"Kueche","udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","mediaItem":null,"friendlyName":"Speaker Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"}]}
Das Log:

Code: Alles auswählen

2020-04-01 16:27:53.478 [WARN ] [ab.binding.http.internal.HttpBinding] - Transformation 'JSONPATH($.data.0.rooms.0.PowerState)' threw an exception. [response={"requestUrl":"/raumserver/data/getRendererState","action":"getRendererState","error":false,"msg":"","data":[{"Mute":0,"InstanceID":0,"RoomStates":"","RoomVolumes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=40","Volume":"40","CurrentTrackMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:raumfeld=\"urn:schemas-raumfeld-com:meta-data/raumfeld\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\" lang=\"en\"><item parentID=\"0/Favorites/MyFavorites\" id=\"0/Favorites/MyFavorites/97\" restricted=\"1\" refID=\"0/RadioTime/Search/s-s8954\"><raumfeld:name>Station</raumfeld:name><upnp:class>object.item.audioItem.audioBroadcast.radio</upnp:class><raumfeld:section>RadioTime</raumfeld:section><raumfeld:durability>120</raumfeld:durability><dc:title>radio ffn</dc:title><upnp:albumArtURI dlna:profileID=\"JPEG_TN\">http://d1i6vahw24eb07.cloudfront.net/s8954q.png</upnp:albumArtURI><raumfeld:ebrowse>http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&amp;formats=wma%2Cmp3%2Cogg&amp;serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&amp;id=s8954&amp;c=ebrowse</raumfeld:ebrowse><res bitrate=\"192\" protocolInfo=\"http-get:*:audio/x-mpegurl:*\">http://opml.radiotime.com/Tune.ashx?id=e110020815&amp;sid=s8954&amp;formats=wma,mp3,ogg&amp;partnerId=7aJ9pvV5&amp;serial=54:4a:16:7f:d3:c5</res></item></DIDL-Lite>\n","CurrentRecordQualityMode":"NOT_IMPLEMENTED","AbsoluteTimePosition":"00:00:00","SecondsUntilSleep":"0","CurrentTrack":"4","AVTransportURIMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\"><item restricted=\"1\"/></DIDL-Lite>\n","PossiblePlaybackStorageMedia":"NETWORK","TransportPlaySpeed":"1","CurrentTrackDuration":"00:00:00","PossibleRecordQualityModes":"NOT_IMPLEMENTED","Bitrate":"192","PossibleRecordStorageMedia":"NONE","AVTransportURI":"dlna-playcontainer://uuid%3A545be55b-1d97-4872-94f0-99c7893bd97a?sid=urn%3Aupnp-org%3AserviceId%3AContentDirectory&cid=0%2FFavorites%2FMyFavorites&md=0&fii=0","RelativeTimePosition":"00:00:00","RelativeCounterPosition":"1","CurrentPlayMode":"NORMAL","TransportState":"STOPPED","AbsoluteCounterPosition":"1","CurrentTransportActions":"","ContentType":"MP3","NumberOfTracks":"4","SleepTimerActive":"0","TransportStatus":"OK","CurrentTrackURI":"http://stream.ffn.de/ffn/mp3-192/stream.mp3?ref=tunein","RoomMutes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=0","rooms":[{"roomUDN":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","Volume":"40","Mute":"0","name":"Kueche","PowerState":"MANUAL_STANDBY","online":true,"udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:de4c540c-f389-4937-ae87-a573ed4e5e6c","mediaItem":{"class":"object.item.audioItem.audioBroadcast.radio","section":"RadioTime","name":"Station","durability":"120","childCount":null,"parentID":"0/Favorites/MyFavorites","id":"0/Favorites/MyFavorites/97","restricted":"1","refID":"0/RadioTime/Search/s-s8954","title":"radio ffn","description":null,"artist":null,"albumArtURI":"http://d1i6vahw24eb07.cloudfront.net/s8954q.png","genre":null,"album":null,"date":null,"creator":null,"originalTrackNumber":null,"bitrate":"192","protocolInfo":"http-get:*:audio/x-mpegurl:*","signalStrength":null,"ebrowse":"http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&formats=wma%2Cmp3%2Cogg&serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&id=s8954&c=ebrowse"},"friendlyName":"Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"},{"InstanceID":0,"AVTransportURIMetaData":"","CurrentTrackDuration":"NOT_IMPLEMENTED","PowerState":"MANUAL_STANDBY","AVTransportURI":"","CurrentPlayMode":"NORMAL","TransportState":"NO_MEDIA_PRESENT","OwnsAudioResource":"0","CurrentTransportActions":"","TransportStatus":"OK","LowDB":"0.000000","Mute":"0","MidDB":"0.000000","Volume":"40","HighDB":"0.000000","rooms":[{"name":"Kueche","udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","mediaItem":null,"friendlyName":"Speaker Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"}]}]
org.openhab.core.transform.TransformationException: Invalid path '$.data.0.rooms.0.PowerState' in '{"requestUrl":"/raumserver/data/getRendererState","action":"getRendererState","error":false,"msg":"","data":[{"Mute":0,"InstanceID":0,"RoomStates":"","RoomVolumes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=40","Volume":"40","CurrentTrackMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:raumfeld=\"urn:schemas-raumfeld-com:meta-data/raumfeld\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\" lang=\"en\"><item parentID=\"0/Favorites/MyFavorites\" id=\"0/Favorites/MyFavorites/97\" restricted=\"1\" refID=\"0/RadioTime/Search/s-s8954\"><raumfeld:name>Station</raumfeld:name><upnp:class>object.item.audioItem.audioBroadcast.radio</upnp:class><raumfeld:section>RadioTime</raumfeld:section><raumfeld:durability>120</raumfeld:durability><dc:title>radio ffn</dc:title><upnp:albumArtURI dlna:profileID=\"JPEG_TN\">http://d1i6vahw24eb07.cloudfront.net/s8954q.png</upnp:albumArtURI><raumfeld:ebrowse>http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&amp;formats=wma%2Cmp3%2Cogg&amp;serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&amp;id=s8954&amp;c=ebrowse</raumfeld:ebrowse><res bitrate=\"192\" protocolInfo=\"http-get:*:audio/x-mpegurl:*\">http://opml.radiotime.com/Tune.ashx?id=e110020815&amp;sid=s8954&amp;formats=wma,mp3,ogg&amp;partnerId=7aJ9pvV5&amp;serial=54:4a:16:7f:d3:c5</res></item></DIDL-Lite>\n","CurrentRecordQualityMode":"NOT_IMPLEMENTED","AbsoluteTimePosition":"00:00:00","SecondsUntilSleep":"0","CurrentTrack":"4","AVTransportURIMetaData":"<?xml version=\"1.0\"?>\n<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dlna=\"urn:schemas-dlna-org:metadata-1-0/\" xmlns:pv=\"http://www.pv.com/pvns/\"><item restricted=\"1\"/></DIDL-Lite>\n","PossiblePlaybackStorageMedia":"NETWORK","TransportPlaySpeed":"1","CurrentTrackDuration":"00:00:00","PossibleRecordQualityModes":"NOT_IMPLEMENTED","Bitrate":"192","PossibleRecordStorageMedia":"NONE","AVTransportURI":"dlna-playcontainer://uuid%3A545be55b-1d97-4872-94f0-99c7893bd97a?sid=urn%3Aupnp-org%3AserviceId%3AContentDirectory&cid=0%2FFavorites%2FMyFavorites&md=0&fii=0","RelativeTimePosition":"00:00:00","RelativeCounterPosition":"1","CurrentPlayMode":"NORMAL","TransportState":"STOPPED","AbsoluteCounterPosition":"1","CurrentTransportActions":"","ContentType":"MP3","NumberOfTracks":"4","SleepTimerActive":"0","TransportStatus":"OK","CurrentTrackURI":"http://stream.ffn.de/ffn/mp3-192/stream.mp3?ref=tunein","RoomMutes":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9=0","rooms":[{"roomUDN":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","Volume":"40","Mute":"0","name":"Kueche","PowerState":"MANUAL_STANDBY","online":true,"udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:de4c540c-f389-4937-ae87-a573ed4e5e6c","mediaItem":{"class":"object.item.audioItem.audioBroadcast.radio","section":"RadioTime","name":"Station","durability":"120","childCount":null,"parentID":"0/Favorites/MyFavorites","id":"0/Favorites/MyFavorites/97","restricted":"1","refID":"0/RadioTime/Search/s-s8954","title":"radio ffn","description":null,"artist":null,"albumArtURI":"http://d1i6vahw24eb07.cloudfront.net/s8954q.png","genre":null,"album":null,"date":null,"creator":null,"originalTrackNumber":null,"bitrate":"192","protocolInfo":"http-get:*:audio/x-mpegurl:*","signalStrength":null,"ebrowse":"http://opml.radiotime.com/Tune.ashx?partnerId=7aJ9pvV5&formats=wma%2Cmp3%2Cogg&serial=54%3A4a%3A16%3A7f%3Ad3%3Ac5&id=s8954&c=ebrowse"},"friendlyName":"Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"},{"InstanceID":0,"AVTransportURIMetaData":"","CurrentTrackDuration":"NOT_IMPLEMENTED","PowerState":"MANUAL_STANDBY","AVTransportURI":"","CurrentPlayMode":"NORMAL","TransportState":"NO_MEDIA_PRESENT","OwnsAudioResource":"0","CurrentTransportActions":"","TransportStatus":"OK","LowDB":"0.000000","Mute":"0","MidDB":"0.000000","Volume":"40","HighDB":"0.000000","rooms":[{"name":"Kueche","udn":"uuid:fb59a372-ad4a-4817-9f08-cb3060a9f1b9","powerState":"MANUAL_STANDBY","renderer":[{"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","name":"Speaker Kueche"}]}],"udn":"uuid:97883760-3c5e-4d85-9fd6-fa0c860fc243","mediaItem":null,"friendlyName":"Speaker Kueche","host":"192.168.2.103","manufacturer":"Lautsprecher Teufel GmbH","modelNumber":"1"}]}'
	at org.openhab.core.transform.TransformationHelper$TransformationServiceDelegate.transform(TransformationHelper.java:71) ~[bundleFile:?]
	at org.openhab.binding.http.internal.HttpBinding.execute(HttpBinding.java:218) [bundleFile:?]
	at org.openhab.core.binding.AbstractActiveBinding$BindingActiveService.execute(AbstractActiveBinding.java:146) [bundleFile:?]
	at org.openhab.core.service.AbstractActiveService$RefreshThread.run(AbstractActiveService.java:169) [bundleFile:?]
Ich hoffe, jemand hat eine Idee.
Viele Grüße

Re: JSON Problem

Verfasst: 2. Apr 2020 00:35
von udo1toni
Die Seite ist vermutlich etwas großzügig, denn der JSON Ausdruck ist falsch. Korrekt sieht er so aus:

Code: Alles auswählen

String RadioState "Value: [%s]" { http="<[http://192.168.2.222:8085/raumserver/data/getRendererState:1000:JSONPATH($.data[0].rooms[0].PowerState)]" }
also jeweils kein Punkt vor einer öffnenden eckigen Klammer und innerhalb der eckigen Klammern den Index.
Kleiner Hinweis am Rande: Normalerweise ist die Reihenfolge der Objekte innerhalb des JSON nicht festgelegt, das heißt, unter dem Index 0 kann sowohl der Lautsprecher mit dem friendlyName "Kueche" als auch der mit dem friendlyName "Speaker Kueche" auftauchen.

Re: JSON Problem

Verfasst: 2. Apr 2020 10:08
von kaloschke
Krass. Es funktioniert. Aber das war ja nicht anders zu erwarten :-).
Also mal wieder vielen Dank.

Was mich aber irritiert: woher soll man / ich das wissen?
Ich habe mich hier neu mit JSON beschäftigt und ich habe es nirgendwo so gelesen, wie Du es schreibst.
Könntest Du mir noch einen Info-Link dazu spendieren?

Re: JSON Problem

Verfasst: 2. Apr 2020 10:28
von kaloschke
Doch noch eine Frage dazu:

Ich möchte die obige Abfrage in einer Rule einsetzen.
rule "Check Radio State"
when
Time cron "* 0/1 * ? * * *"
then {
var String RadioState
RadioState = "http://192.168.2.222:8085/raumserver/da ... owerState)"
RadioState.sendHttpGetRequest(500)
logInfo("RadioState: {}", RadioState)
}
end
Hier bekomme ich aber die Fehlermeldung:

Code: Alles auswählen

2020-04-02 10:21:20.722 [ERROR] [ntime.internal.engine.ExecuteRuleJob] - Error during the execution of rule 'Check Radio State': Illegal character in path at index 79: http://192.168.2.222:8085/raumserver/data/getRendererState:1000:JSONPATH($.data[0].rooms[0].PowerState)
Wenn ich richtig zähle, lande ich JSONPATH. Kannst Du da auch helfen?

Re: JSON Problem

Verfasst: 2. Apr 2020 10:32
von kaloschke
Ich sehe gerade, dass ich die Regel nicht unbedingt brauche, zumindest nicht um periodisch den Status von RadioState abzufragen. In der Sitemap wird er sofort aktualisert.
Aber wie läuft das technisch? Wird im HIntergrund andauernd der http-request abgesetzt? Entsteht so nicht unnötig viel Last, so das die Regel doch besser wäre?

Re: JSON Problem

Verfasst: 2. Apr 2020 14:21
von StefanH.
ja, jede sekunde feuerst du einen http request.

https://www.openhab.org/addons/bindings ... tp-binding

Re: JSON Problem

Verfasst: 2. Apr 2020 15:46
von kaloschke
Ok, danke.

Dann Hallo udo1toni :-)

Re: JSON Problem

Verfasst: 3. Apr 2020 00:49
von udo1toni
Also, Deine Rule triggert ja nun einmal pro Sekunde und sendet ein http get request. JSONPATH als Transformation gehört aber nicht zum Request. Du müsstest also das Ergebnis des Requests in einer Variablen speichern und anschließend diese in die Transformation schieben.
Das Item macht das ganz ohne Rule. Das Item, so wie oben angegeben, ist darauf konfiguriert, jede Sekunde einen Request zu schicken. Ob das sinnvoll ist, musst Du selbst wissen. Die Pullfrequenz kanst Du einfach im Item einstellen.

Code: Alles auswählen

String RadioState "Value: [%s]" { http="<[http://192.168.2.222:8085/raumserver/data/getRendererState:1000:JSONPATH($.data[0].rooms[0].PowerState)]" }
                                                                                                     ^^^^
die 1000 steht für 1000 Millisekunden

Re: JSON Problem

Verfasst: 3. Apr 2020 11:33
von kaloschke
Ach so. Dann kann ich ja da auf 5 Minuten gehen. Das reicht völlig.
Vielen Dank

Re: JSON Problem

Verfasst: 3. Apr 2020 12:03
von udo1toni
Genau, dann schreibst Du halt :300000: statt :1000: :)
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