# Connecting to a Session

The `connect` function is responsible for creating a connection between the clients.

```javascript
function connect() {
	let displayed_name = document.getElementById('display_name').value
	let streamingToken = document.getElementById('session_token').value

	if(!displayed_name || !streamingToken)
		alert('Display name and token is empty or invalid! Please check and try again!')

	WTSDK.Session.connect(
		streamingToken,
		displayed_name
	);
}
```

The `onConnected` function is used to define a callback that will be called when the local user's media stream is created. This callback can be used to perform various operations on the stream, such as displaying it in a video element.

```javascript
WTSDK.SessionListeners.onConnected(() => {
	...
	document.getElementById('config_dialog').style.display = 'none';

	const videos = document.getElementsByTagName('video')

	//On participant connect to the Session
	WTSDK.ParticipantListeners.onParticipantSpeaking(() => {
		// On participant speaking event
	});
	WTSDK.ParticipantListeners.onParticipantStopSpeaking(() => {
		// On participant stop speaking event
	});

	WTSDK.ReconnectListeners.onLocalConnectionResumed(() => {
		Array.from(videos).forEach(video => {
			video.parentElement.remove();
		})
	})

	WTSDK.SessionListeners.onStreamCreated(participant => {
		const { local, stream, participantId } = participant;

		const node = document.getElementById(participantId);

		if(node) {
			node.srcObject = participant.stream;
		} else {
			const div = document.createElement("div")
			div.setAttribute("class", "video-container");

			const video = document.createElement("video");
			video.id = participantId;
			video.className = local ? "local" : "";
			video.autoplay = true;
			video.muted = local;
			video.srcObject = stream;
			video.playsInline = true;
			video.disablePictureInPicture = true;

			div.appendChild(video)

			const container = document.querySelector("#gallery");
			container.appendChild(div);
			recalculateLayout();
		}
	});

	WTSDK.ParticipantListeners.onParticipantLeft(({participantId}) => {
		const el = document.getElementById(participantId);
		el.parentElement.remove();
		recalculateLayout();
	});
});
```

The `onParticipantSpeaking` and `onParticipantStopSpeaking` functions can be used to visually highlight the current speaker in a call.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://documentation.sceenic.co/watch-together-sdk/sscale-confluence-tutorials/web/sample-application/connecting-to-a-session.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.