RTCIceTransport: statechange event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2024.
A statechange event occurs when the RTCIceTransport changes state. The state can be used to determine how far through the process of examining, verifying, and selecting a valid candidate pair is prior to successfully connecting the two peers for WebRTC communications.
This event is not cancelable and does not bubble.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("statechange", (event) => { })
onstatechange = (event) => { }
Event type
A generic Event.
Examples
Given an RTCPeerConnection, pc, the following code creates an event handler that calls a function named handleFailure() if the ICE transport enters a failure state.
let iceTransport = pc.getSenders()[0].transport.iceTransport;
iceTransport.addEventListener("statechange", (ev) => {
if (iceTransport.state === "failed") {
handleFailure(pc);
}
});
The same code, using the onstatechange event handler property, looks like this:
let iceTransport = pc.getSenders()[0].transport.iceTransport;
iceTransport.onstatechange = (ev) => {
if (iceTransport.state === "failed") {
handleFailure(pc);
}
};
Specifications
| Specification |
|---|
| WebRTC: Real-Time Communication in Browsers # event-icetransport-statechange |
| WebRTC: Real-Time Communication in Browsers # dom-rtcicetransport-onstatechange |