# Cardio Fitness Classes with Fit Barbie

> Join Fit Barbie for an energetic 60-minute Cardio Fitness Class. A combination of Aerobics, Zumba & Dance. Classes are held every TUE & THU at 6:00 PM at the National Cricket Centre, Couva. Advance booking is required. Our max class size is 40 persons, purely on a first-come-first served basis. Your spot is only confirmed when booked through this online portal! Monthly membership: $250 (Contact Fit Barbie aka CHER to arrange payment)

- Host: Fit Barbie
- Duration: 60 min
- Location: National Cricket Centre, Couva, Near Ato Boldon Stadium
- Host time zone: America/Port_of_Spain
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/fitbarbie/cardio-fitness-classes
- Event type id: 7892858

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7892858&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 7892858,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "Which-Fit-Barbie-monthly-membership-do-you-currently-have": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Which-Fit-Barbie-monthly-membership-do-you-currently-have` (Which Fit Barbie monthly membership do you currently have?)
- Optional fields: `notes` (Additional notes)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- A successful response is a pending booking request.