const options = {
  method: 'POST',
  headers: {cookie: 'overlay_session=', 'Content-Type': 'application/json'},
  body: JSON.stringify({})
};

fetch('https://getoverlay.io/api/v1/conversations/act/extension-plan', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

const options = {
  method: 'POST',
  headers: {cookie: 'overlay_session=', 'Content-Type': 'application/json'},
  body: JSON.stringify({})
};

fetch('https://getoverlay.io/api/v1/conversations/act/extension-plan', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request POST \
  --url https://getoverlay.io/api/v1/conversations/act/extension-plan \
  --header 'Content-Type: application/json' \
  --cookie overlay_session= \
  --data '{}'

"<unknown>"

{
  "error": "<string>",
  "code": "<string>"
}

{
  "error": "<string>",
  "code": "<string>"
}

{
  "error": "<string>",
  "code": "<string>"
}