# 1-1 Growth Mapping Call with David Preitfellner

- Host: David Preitfellner
- Duration: 20 min
- Location: Google Meet
- Host time zone: Europe/Vienna
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/david-preitfellner-rztvdo/1-1-consultation-call
- Event type id: 6272901

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6272901&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": 6272901,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "Company-Business-name": "…",
    "What-s-the-biggest-bottleneck-in-your-business-right-now": "…",
    "What-tools-do-you-currently-use-to-run-your-business": "…",
    "Anything-else-I-should-know": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Company-Business-name` (Company/Business name), `What-s-the-biggest-bottleneck-in-your-business-right-now` (What's the biggest bottleneck in your business right now?), `What-tools-do-you-currently-use-to-run-your-business` (What tools do you currently use to run your business?)
- Optional fields: `Anything-else-I-should-know` (Anything else I should know?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.