# Robiul Islam – Cal.com booking page

> Hi, I'm a self-taught backend focus - front-end developer. I've been coding since 2018, and I have a strong foundation in programming. I'm currently focusing on the MERN Stack to build a scalable app.

I'm passionate about technology specifically the web. I have worked on a few commercial projects and also freelancing.

Ever-curious learner, I'm currently immersing myself in the industry using modern and essential tools, keen to broaden my skill set and take on fresh challenges.

Let's engage in conversations about all things code! I'm eager to share insights, collaborate on exciting projects, and swap ideas with fellow developers. Don't hesitate to reach out—let's work together to enhance the tech world!

Booking page: https://cal.com/robiul-islam

## Event types

- [30 Min Meeting](https://cal.com/robiul-islam/30min): 30 min, confirmed instantly, event type id 1855615. Details: https://cal.com/robiul-islam/30min.md
- [15 Min Meeting](https://cal.com/robiul-islam/15min): 15 min, confirmed instantly, event type id 1855614. Details: https://cal.com/robiul-islam/15min.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction