Daily Prejoin Presence

This demo shows a list of participants who have already entered a video call. This allows a user who is about to enter a Daily room to know who is already in the room before they join the call.

Prerequisites

• Sign up for a Daily account.
• Install Go if you don't already have it.

How the demo works

This demo uses Daily Prebuilt to embed a full-featured video call on the client. It uses stateless Netlify functions to create Daily rooms and retrieve their presence information with Daily's REST API.

• The client-side Daily logic (to instantiate a call frame and join a call) is written in vanilla JavaScript and can be found in src/call.js
• The server-side Daily logic (to create a Daily room and retrieve presence informatino) is written in Go and can be found in netlify/functions/

Running locally

1. Run git clone git@github.com:daily-demos/daily-prejoin-presence.git
2. Run cd daily-prejoin-presence
3. Run npm i
4. Copy example.env and replace DAILY_API_KEY with your Daily developer API key. Note: Do not submit this file to version control.
5. Run npm run dev

Contributing and feedback

Contributions are welcome in the form of GitHub issues or pull requests.

What's next

A couple of ways to extend the functionality in this demo include:

• Update the presence list when participants join or leave a room (currently, the presence list is updated once per call prejoin.)
• Display when a user has joined the call in the presence list.

Related blog posts/guides

• Daily's REST API documentation
• Creating video call rooms securely with Daily's REST API