curl --request POST \
  --url https://api.wacht.dev/me/sso-connection-callback \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --cookie session_id= \
  --data 'code=<string>' \
  --data 'provider=<string>' \
  --data 'state=<string>'

{
  "id": "<string>",
  "provider": "<string>",
  "provider_user_id": "<string>",
  "email": "jsmith@example.com"
}