@Jensen
hi, thx this helped me.
But now I only see this, do you know why it cannot get data?
I tried with

"http://192.168.0.102:8087/get/hm-rpc.0.OEQ0348511.1.HUMIDITY" 

at Safari and the response ist the fuel data string

{"val":52,"ack":true,"ts":1585485874168,"q":0,"from":"system.adapter.hm-rega.0","user":"system.user.admin","lc":1585560601523,"type":"state","common":{"def":0,"type":"number","read":true,"write":false,"min":0,"max":99,"unit":"%","role":"value.humidity","name":"TempFeuchtHof.HUMIDITY"},"native":{"AutoconfRoles":"WEATHER","DEFAULT":0,"FLAGS":1,"ID":"HUMIDITY","MAX":99,"MIN":0,"OPERATIONS":5,"TAB_ORDER":1,"TYPE":"INTEGER","UNIT":"%"},"_id":"hm-rpc.0.OEQ0348511.1.HUMIDITY","acl":{"object":1636,"state":1636,"owner":"system.user.admin","ownerGroup":"system.group.administrator"}}