Ignore null values in json object
Ignore null values in json object

vipien/traccar,jssenyange/traccar,orcoliver/traccar,AnshulJain1985/Roadcast-Tracker,jon-stumpf/traccar,tsmgeek/traccar,jssenyange/traccar,stalien/traccar_test,jssenyange/traccar,duke2906/traccar,5of9/traccar,tsmgeek/traccar,tananaev/traccar,orcoliver/traccar,tananaev/traccar,stalien/traccar_test,renaudallard/traccar,ninioe/traccar,orcoliver/traccar,renaudallard/traccar,5of9/traccar,jon-stumpf/traccar,ninioe/traccar,al3x1s/traccar,joseant/traccar-1,tsmgeek/traccar,tananaev/traccar,jon-stumpf/traccar,vipien/traccar,AnshulJain1985/Roadcast-Tracker,ninioe/traccar,joseant/traccar-1,duke2906/traccar,al3x1s/traccar