curl --request POST \
  --url https://api.example.com/ \
  --header 'App-Password: <api-key>' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --header 'Device-Code: <device-code>' \
  --data 'val=<string>'

{
  "error": "<string>",
  "status": 1
}