# Meet GOStack with GOStack - AWS DevOps & Cloud Engineering

> In this call, we’ll review your current setup, highlight the biggest quick wins and share what we would do next. No commitment, no sales pitch. Your Platform Engineered. Fully managed. Zero Hassle. Always On.

- Host: GOStack - AWS DevOps & Cloud Engineering
- Duration: 45 min
- Location: Google Meet
- Host time zone: Europe/Riga
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/gostack/45min
- Event type id: 6546240

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6546240&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": 6546240,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Company-name": "…",
    "Services-you-re-interested-in": "…",
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Company-name` (Company name), `Services-you-re-interested-in` (Services you're interested in)
- Optional fields: `attendeePhoneNumber` (Phone number), `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.