curl --request GET \
  --url https://api-v2.watchcollect.com/v2/groups \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api-v2.watchcollect.com/v2/groups', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api-v2.watchcollect.com/v2/groups"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "waha_group_id": "120363000000000000@g.us",
      "name": "Rolex Europe",
      "enabled": true,
      "last_seen_at_ms": 123,
      "participants_count": 123
    }
  ],
  "has_more": true,
  "next_cursor": "<string>"
}

{
  "error": {
    "code": "invalid_payload",
    "message": "event is required",
    "request_id": "018f06e2-4f8d-7c01-8a0d-cc6fd78f7001"
  }
}

{
  "error": {
    "code": "invalid_payload",
    "message": "event is required",
    "request_id": "018f06e2-4f8d-7c01-8a0d-cc6fd78f7001"
  }
}