curl --request POST \
  --url https://api.acornops.dev/api/v1/auth/external-integrations/link \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "externalUserId": "slack-user-id",
  "externalDisplayName": "John Tan"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({externalUserId: 'slack-user-id', externalDisplayName: 'John Tan'})
};

fetch('https://api.acornops.dev/api/v1/auth/external-integrations/link', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "linkUrl": "<string>",
  "expiresAt": "2023-11-07T05:31:56Z"
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "retryable": true,
    "details": {}
  }
}