# Intro & Questions - 20min with Lucas Pires

> Por favor, compartilhe qualquer coisa que possa me ajudar a me preparar para esta reunião. Se você não encontrar um horário para você devido a conflitos de agendamento ou fuso horário, envie um e-mail para hey@lution.dev e nós resolveremos algo. Se você preferir enviar suas perguntas por e-mail, envie-as para hey@lution.dev para uma resposta no mesmo dia. Esta chamada é estritamente reservada para aqueles interessados ​​em uma assinatura da Lution, ou para tirar dúvidas no geral. Todas as outras perguntas podem ser enviadas para hey@lution.dev. ------------------------------------------------------------ 🇺🇸 Please share anything that might help me prepare for this meeting. If you can’t find a time that works for you due to scheduling conflicts or time zones, please email hey@lution.dev and we’ll work something out. If you’d prefer to email your questions, please send them to hey@lution.dev for a same-day response. This call is strictly reserved for those interested in a Lution subscription, or for general inquiries. All other questions can be sent to hey@lution.dev.

- Host: Lucas Pires
- Duration: 20 min
- Location: Google Meet
- Host time zone: America/Sao_Paulo
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/lucas-pires-lution/20min
- Event type id: 1563277

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1563277&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": 1563277,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `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.