Rollershutter with HTTP binding OH3

Hi everyone,
I have 10 roller shutter , and the only one it’s possible move with three HTTP’s command.
Where is the correct procedure to set correctly item?
I read a proxy for roller shutter, what is it?
Do you have an example?


I study evry forum topic and the document, i only created a single thing with HTTP binding, and i configure the value.
Very important is


to trasform value of Up,Down,Stop

UID: http:url:Finestra
label: Finestra WC 
thingTypeUID: http:url
  authMode: BASIC
  ignoreSSLErrors: false
  baseURL: http://url/v3/
  delay: 0
  stateMethod: POST
  refresh: 30
  commandMethod: POST
  contentType: application/json
  timeout: 3000
  bufferSize: 2048
  - id: FinestraWC23p
    channelTypeUID: http:rollershutter
    label: FinestraWC23p
    description: ""
      mode: WRITEONLY
      escapedUrl: false
      commandExtension: sendDeviceCommand?&device=ITD1&commands=%2$s
      downValue: '{"Set":"ON"}'
      stopValue: '{"Set":"STOP"}'
      upValue: '{"Set":"OFF"}'