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Hello Michael, there was no reply to me in a DM in that time. But nevertheless with the command in your last msg I was able to get a meaningfull reply from the system. Thanks! What I also need is the command to get "gas consumption" in cubic meters or kWh of my hybrid system 222-f. Maybe I'm to stupid to read/understand the API documentation (https://documentation.viessmann.com/static/getting-started) but I could not find the command. Can you please help again? regards george ... Mehr anzeigen

To whom  it may concern in Viessmann company. Time goes by no solution no answer. Are you still there? Is anybody working on the answer? regards  hgt ... Mehr anzeigen

OK, I understand the API is not working for changing values. So it is useless for me. I will disconnect the box and you won't get any data from my heating system.   ... Mehr anzeigen

Hello Michael, it still does not work. See the 3rd curl request in the script. Here is the script: #!/bin/bash #ACCOUNT_JSON_FILE=".account.json" TOKEN_JSON_FILE=".token.json" #SETTING_JSON_FILE=".setting.json"   installationId=$(cat .setting.json | jq -r '.installationId') gatewaySerial=$(cat .setting.json | jq -r '.gatewaySerial') # if token is already present load it if [[ -f $TOKEN_JSON_FILE ]]; then access_token=$(cat .token.json | jq -r '.access_token') else echo " design error 1" exit 1 fi curl -X GET "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge" \ -H "Authorization: Bearer $access_token" echo " " echo " " curl -d {} -X POST https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/commands/deactivate -H "Authorization: Bearer $access_token" echo " " curl -d'{}' -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/commands/activate" \ -H "Authorization: Bearer $access_token" echo " " curl -d "{}" -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/commands/deactivate" \ -H "Authorization: Bearer $access_token" echo " " curl -d {} -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/commands/activate" \ -H "Authorization: Bearer $access_token" echo " " curl -d {} -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeChargewhatever" \ -H "Authorization: Bearer $access_token" echo " " curl -d {} -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/dummy1/100/dummy2/i_do_not_like_500" \ -H "Authorization: Bearer $access_token" echo " " curl -d {} -X POST -s "https://api.viessmann.com/iot/v1/equipment/installations/0123456/gateways/0123456789012345/devices/0/features/heating.dhw.oneTimeCharge/commands/activate" \ -H "Authorization: Bearer $access_token" echo " "   And here the outcome: {"data":{"properties":{"active":{"value":false,"type":"boolean"}},"commands":{"activate":{"uri":"https://api.viessmann.com/iot/v1/equipment/installations/123456/gateways/012345678912345/devices/0/features/heating.dhw.oneTimeCharge/commands/activate","name":"activate","isExecutable":true,"params":{}},"deactivate":{"uri":"https://api.viessmann.com/iot/v1/equipment/installations/123456/gateways/012345678912345/devices/0/features/heating.dhw.oneTimeCharge/commands/deactivate","name":"deactivate","isExecutable":false,"params":{}}},"apiVersion":1,"uri":"https://api.viessmann.com/iot/v1/equipment/installations/123456/gateways/012345678912345/devices/0/features/heating.dhw.oneTimeCharge","gatewayId":"012345678912345","feature":"heating.dhw.oneTimeCharge","timestamp":"2022-10-12T07:36:22.751Z","isEnabled":true,"isReady":true,"deviceId":"0"}}   {"viErrorId":"req-1da7d25565c74621b30768e6c34af825","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-9a0d4c28f42247e089394941c718bdc4","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-3aec751d97e342cd8f1d85928ae217cb","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-fb596d5fbd0149f4818fa9ba76e3b226","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-e56db1e7ad1c4bd98283bb01970cbc6f","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-7f9c755f5c4b4312959223de98410bab","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"} {"viErrorId":"req-001641c3c78d455ca0a10e6926f48657","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}   The syntax checking of the Viessmann server is really strange. Just analyse the last 3 requests. regards  hgt ... Mehr anzeigen

Hello Michael, here is the bash shell script: #!/bin/bash #ACCOUNT_JSON_FILE=".account.json" TOKEN_JSON_FILE=".token.json" #SETTING_JSON_FILE=".setting.json"   installationId=$(cat .setting.json | jq -r '.installationId') gatewaySerial=$(cat .setting.json | jq -r '.gatewaySerial') # if token is already present load it if [[ -f $TOKEN_JSON_FILE ]]; then access_token=$(cat .token.json | jq -r '.access_token') else echo " design error 1" exit 1 fi echo "curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge" \ -s \ -H "Authorization: Bearer $access_token"" curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge" \ -s \ -H "Authorization: Bearer $access_token" echo " " ;echo " " echo "curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/activate" \ -s \ -d {} \ -H "Authorization: Bearer $access_token" " curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/activate" \ -s \ -d {} \ -H "Authorization: Bearer $access_token" echo " " ;echo " " echo "curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/activate" \ -s \ -d "{}" \ -H "Authorization: Bearer $access_token" " curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/activate" \ -s \ -d "{}" \ -H "Authorization: Bearer $access_token" echo " ";echo " " echo " curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate" \ -s \ -d '{}' \ -H "Authorization: Bearer $access_token" " curl "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate" \ -s \ -d '{}' \ -H "Authorization: Bearer $access_token" echo " ";echo " " echo "curl -d'{}' -X POST -s -H "Authorization: Bearer $access_token" "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate" " curl -d'{}' -X POST -s -H "Authorization: Bearer $access_token" "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate" " curl -d'{}' -X POST -s -H "Authorization: Bearer $access_token" "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate" " curl -d'{}' -X POST -s -H "Authorization: Bearer $access_token" "https://api.viessmann.com/iot/v1/equipment/installations/$installationId/gateways/$gatewaySerial/devices/0/features/heating.dhw.oneTimeCharge/deactivate"         And this is the result: curl https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge -s -H Authorization: Bearer whatever {"data":{"properties":{"active":{"value":false,"type":"boolean"}},"commands":{"activate":{"uri":"https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/commands/activate","name":"activate","isExecutable":true,"params":{}},"deactivate":{"uri":"https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/commands/deactivate","name":"deactivate","isExecutable":false,"params":{}}},"apiVersion":1,"uri":"https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge","gatewayId":"123456789012345","feature":"heating.dhw.oneTimeCharge","timestamp":"2022-10-10T16:46:36.391Z","isEnabled":true,"isReady":true,"deviceId":"0"}}   curl https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/activate -s -d {} -H Authorization: Bearer whatever {"viErrorId":"req-2ba0bfa345084393bcafd195dab37eb1","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}   curl https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/activate -s -d {} -H Authorization: Bearer whatever {"viErrorId":"req-ada86948c9704c6da5a873b9180f114b","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}   curl https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/deactivate -s -d '{}' -H Authorization: Bearer whatever {"viErrorId":"req-60e21c31767749cfb7e7bf9c1d82a4a6","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}   curl -d'{}' -X POST -s -H Authorization: Bearer whatever https://api.viessmann.com/iot/v1/equipment/installations/1234567/gateways/123456789012345/devices/0/features/heating.dhw.oneTimeCharge/deactivate {"viErrorId":"req-3aa51712b031476780285d6741921789","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}{"viErrorId":"req-ad7a24b75a4a4bc28b0cf63256e8a0ed","statusCode":500,"errorType":"INTERNAL_ERROR","message":"Internal server error"}     regards hgt ... 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