RTCPeerConnection: iceGatheringState property
BaselineWidely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
TheiceGatheringState read-only property of theRTCPeerConnection interface returns a string that describes the overall ICE gathering state for this connection.This lets you detect, for example, when collection of ICE candidates has finished.
You can detect when the value of this property changes by watching for an event of typeicegatheringstatechange.
Note thaticeGatheringState represents the overall gathering state of the connection, including everyRTCIceTransport used by everyRTCRtpSender and everyRTCRtpReceiver on the entire connection.This contrasts withRTCIceTransport.gatheringState, which represents the gathering state for a single transport.
Value
The possible values are:
newThe peer connection was just created and hasn't done any networking yet.
gatheringThe ICE agent is in the process of gathering candidates for the connection.
completeThe ICE agent has finished gathering candidates.If something happens that requires collecting new candidates, such as a new interface being added or the addition of a new ICE server, the state will revert to
gatheringto gather those candidates.
Example
const pc = new RTCPeerConnection();const state = pc.iceGatheringState;Specifications
| Specification |
|---|
| WebRTC: Real-Time Communication in Browsers # dom-peerconnection-ice-gathering-state |