RTCPeerConnection

The RTCPeerConnection interface represents a WebRTC connection between the local computer and a remote peer. It provides methods to connect to a remote peer, maintain and monitor the connection, and close the connection once it's no longer needed.

Constructor

RTCPeerConnection()

The RTCPeerConnection() constructor returns a newly-created RTCPeerConnection, which represents a connection between the local device and a remote peer.

Properties

Also inherits properties from: EventTarget

canTrickleIceCandidates

The read-only RTCPeerConnection property canTrickleIceCandidates returns a Boolean which indicates whether or not the remote peer can accept trickled ICE candidates.

connectionState

The read-only connectionState property of the RTCPeerConnection interface indicates the current state of the peer connection by returning one of the string values specified by the enum RTCPeerConnectionState.

currentLocalDescription Read only

The read-only property RTCPeerConnection.currentLocalDescription returns an RTCSessionDescription object describing the local end of the connection as it was most recently successfully negotiated since the last time the RTCPeerConnection finished negotiating and connecting to a remote peer. Also included is a list of any ICE candidates that may already have been generated by the ICE agent since the offer or answer represented by the description was first instantiated.

currentRemoteDescription Read only

The read-only property RTCPeerConnection.currentRemoteDescription returns an RTCSessionDescription object describing the remote end of the connection as it was most recently successfully negotiated since the last time the RTCPeerConnection finished negotiating and connecting to a remote peer. Also included is a list of any ICE candidates that may already have been generated by the ICE agent since the offer or answer represented by the description was first instantiated.

defaultIceServers

The read-only property RTCPeerConnection.defaultIceServers returns an array of objects based on the RTCIceServer dictionary, which indicates what, if any, ICE servers the browser will use by default if none are provided to the RTCPeerConnection in its RTCConfiguration. However, browsers are not required to provide any default ICE servers at all.

iceConnectionState Read only

The read-only property RTCPeerConnection.iceConnectionState returns an enum of type RTCIceConnectionState which state of the ICE agent associated with the RTCPeerConnection.

iceGatheringState Read only

The read-only property RTCPeerConnection.iceGatheringState returns an enum of type RTCIceGatheringState that describes connection's ICE gathering state. This lets you detect, for example, when collection of ICE candidates has finished.

localDescription Read only

The read-only property RTCPeerConnection.localDescription returns an RTCSessionDescription describing the session for the local end of the connection. If it has not yet been set, this is null.

peerIdentity Read only

The read-only property RTCPeerConnection.peerIdentity returns an RTCIdentityAssertion, containing a DOMString once set and verified. If no peer has yet been set and verified, this property will return null. Once set, via the appropriate method, it can't be changed.

pendingLocalDescription Read only

The read-only property RTCPeerConnection.pendingLocalDescription returns an RTCSessionDescription object describing a pending configuration change for the local end of the connection. This does not describe the connection as it currently stands, but as it may exist in the near future. Use RTCPeerConnection.currentLocalDescription or RTCPeerConnection.localDescription to get the current state of the endpoint. For details on the difference, see Pending and current descriptions in WebRTC connectivity.

pendingRemoteDescription Read only

The read-only property RTCPeerConnection.pendingRemoteDescription returns an RTCSessionDescription object describing a pending configuration change for the remote end of the connection. This does not describe the connection as it currently stands, but as it may exist in the near future. Use RTCPeerConnection.currentRemoteDescription or RTCPeerConnection.remoteDescription to get the current session description for the remote endpoint. For details on the difference, see Pending and current descriptions in WebRTC connectivity.

remoteDescription Read only

The read-only property RTCPeerConnection.remoteDescription returns a RTCSessionDescription describing the session (which includes configuration and media information) for the remote end of the connection. If this hasn't been set yet, this is null.

sctp

The read-only sctp property on the RTCPeerConnection interface returns an RTCSctpTransport describing the SCTP transport over which SCTP data is being sent and received. If SCTP hasn't been negotiated, this value is null.

signalingState Read only

The read-only signalingState property on the RTCPeerConnection interface returns one of the string values specified by the RTCSignalingState enum; these values describe the state of the signaling process on the local end of the connection while connecting or reconnecting to another peer. See Signaling in Lifetime of a WebRTC session for more details about the signaling process.

Event handlers

Also inherits event handlers from: EventTarget

onaddstream

The RTCPeerConnection.onaddstream event handler is a property containing the code to execute when the addstream event, of type MediaStreamEvent, is received by this RTCPeerConnection. Such an event is sent when a MediaStream is added to this connection by the remote peer. The event is sent immediately after the call setRemoteDescription() and doesn't wait for the result of the SDP negotiation.

onconnectionstatechange

The RTCPeerConnection.onconnectionstatechange property specifies an EventHandler which is called to handle the connectionstatechange event when it occurs on an instance of RTCPeerConnection. This happens whenever the aggregate state of the connection changes.

ondatachannel

The RTCPeerConnection.ondatachannel property is an EventHandler which specifies a function which is called when the datachannel event occurs on an RTCPeerConnection. This event, of type RTCDataChannelEvent, is sent when an RTCDataChannel is added to the connection by the remote peer calling createDataChannel().

onicecandidate

The RTCPeerConnection.onicecandidate property is an EventHandler which specifies a function to be called when the icecandidate event occurs on an RTCPeerConnection instance. This happens whenever the local ICE agent needs to deliver a message to the other peer through the signaling server.

oniceconnectionstatechange

The RTCPeerConnection.oniceconnectionstatechange property is an event handler which specifies a function to be called when the iceconnectionstatechange event is fired on an RTCPeerConnection instance. This happens when the state of the connection's ICE agent, as represented by the iceConnectionState property, changes.

onicegatheringstatechange

The RTCPeerConnection.onicegatheringstatechange property is an EventHandler which specifies a function to be called when the icegatheringstatechange event is sent to an RTCPeerConnection instance. This happens when the ICE gathering state—that is, whether or not the ICE agent is actively gathering candidates—changes.

onidentityresult

The RTCPeerConnection.onidentityresult event handler is a property containing the code to execute when the identityresult event, of type RTCIdentityEvent, is received by this RTCPeerConnection. Such an event is sent when an identity assertion is generated, via getIdentityAssertion() or during the creation of an offer or an answer.

onidpassertionerror

The RTCPeerConnection.onidpassertionerror event handler is a property containing the code to execute whent the idpassertionerror event, of type RTCIdentityErrorEvent, is received by this RTCPeerConnection. Such an event is sent when the associated identity provider (IdP) encounters an error while generating an identity assertion.

onidpvalidationerror

The RTCPeerConnection.onidpvalidationerror event handler is a property containing the code to execute whent the idpvalidationerror event, of type RTCIdentityErrorEvent, is received by this RTCPeerConnection. Such an event is sent when the associated identity provider (IdP) encounters an error while validating an identity assertion.

onnegotiationneeded

The RTCPeerConnection.onnegotiationneeded property is an EventHandler which specifies a function which is called to handle the negotiationneeded event when it occurs on an RTCPeerConnection instance. This event is fired when a change has occurred which requires session negotiation. This negotiation should be carried out as the offerer, because some session changes cannot be negotiated as the answerer.

onpeeridentity

The RTCPeerConnection.onpeeridentity event handler is a property containing the code to execute whent the peeridentity event, of type Event, is received by this RTCPeerConnection. Such an event is sent when an identity assertion, received from a peer, has been successfully validated.

onremovestream

The RTCPeerConnection.onremovestream event handler is a property containing the code to execute when the removestream event, of type MediaStreamEvent, is received by this RTCPeerConnection. Such an event is sent when a MediaStream is removed from this connection.

onsignalingstatechange

The onsignalingstatechange property of the RTCPeerConnection interface is an EventHandler which specifies a function to be called when the signalingstatechange event occurs on an RTCPeerConnection interface.

ontrack

The RTCPeerConnection property ontrack is an EventHandler which specifies a function to be called when the track event occurs, indicating that a track has been added to the RTCPeerConnection.

Methods

Also inherits methods from: EventTarget

addIceCandidate()

When a web site or app using RTCPeerConnection receives a new ICE candidate from the remote peer over its signaling channel, it delivers the newly-received candidate to the browser's ICE agent by calling RTCPeerConnection.addIceCandidate().

addStream()

The RTCPeerConnection.addStream() method adds a MediaStream as a local source of audio or video. If the negotiation already happened, a new one will be needed for the remote peer to be able to use it.

addTrack()

The RTCPeerConnection method addTrack() adds a new media track to the set of tracks which will be transmitted to the other peer.

close()

The RTCPeerConnection.close() method closes the current peer connection.

createAnswer()

The createAnswer() method on the RTCPeerConnection interface creates an SDP answer to an offer received from a remote peer during the offer/answer negotiation of a WebRTC connection. The answer contains information about any media already attached to the session, codecs and options supported by the browser, and any ICE candidates already gathered. The answer is delivered to the returned Promise, and should then be sent to the source of the offer to continue the negotiation process.

createDataChannel()

The createDataChannel() method on the RTCPeerConnection interface creates a new channel over which any kind of data may be transmitted. This can be useful for back-channel content such as images, file transfer, text chat, game update packets, and so forth.

createOffer()

The createOffer() method of the RTCPeerConnection interface initiates the creation of an SDP offer for the purpose of starting a new WebRTC connection to a remote peer.

generateCertificate()

The generateCertificate() method of the RTCPeerConnection interface creates and stores an X.509 certificate and corresponding private key then returns an RTCCertificate, providing access to it.

getConfiguration()

The RTCPeerConnection.getConfiguration() method returns an RTCConfiguration object which indicates the current configuration of the RTCPeerConnection on which the method is called.

getIdentityAssertion()

The RTCPeerConnection.getIdentityAssertion() method initiates the gathering of an identity assertion. This has an effect only if the signalingState is not "closed".

getLocalStreams()

The RTCPeerConnection.getLocalStreams() method returns an array of MediaStream associated with the local end of the connection. The array may be empty.

getReceivers()

The RTCPeerConnection.getReceivers() method returns an array of RTCRtpReceiver objects, each of which represents one RTP receiver. Each RTP receiver manages the reception and decoding of data for a MediaStreamTrack on an RTCPeerConnection

getRemoteStreams()

The RTCPeerConnection.getRemoteStreams() method returns an array of MediaStream associated with the remote end of the connection. The array may be empty.

getSenders()

The RTCPeerConnection method getSenders() returns an array of RTCRtpSender objects, each of which represents the RTP sender responsible for transmitting one track's data.

getStats()

The RTCPeerConnection method getStats() returns a promise which resolves with data providing statistics about either the overall connection or about the specified MediaStreamTrack.

getStreamById()

The RTCPeerConnection.getStreamById() method returns the MediaStream with the given id that is associated with local or remote end of the connection. If no stream matches, it returns null.

removeStream()

The RTCPeerConnection.removeStream() method removes a MediaStream as a local source of audio or video. If the negotiation already happened, a new one will be needed for the remote peer to be able to use it. Because this method has been deprecated, you should instead use removeTrack() if your target browser versions have implemented it.

removeTrack()

The RTCPeerConnection.removeTrack() method tells the local end of the connection to stop sending media from the specified track, without actually removing the corresponding RTCRtpSender from the list of senders as reported by RTCPeerConnection.getSenders().

setConfiguration()

The RTCPeerConnection.setConfiguration() method sets the current configuration of the RTCPeerConnection based on the values included in the specified RTCConfiguration object. This lets you change the ICE servers used by the connection and which transport policies to use.

setIdentityProvider()

The RTCPeerConnection.setIdentityProvider() method sets the Identity Provider (IdP) to the triplet given in parameter: its name, the protocol used to communicate with it (optional) and an optional username. The IdP will be used only when an assertion is needed.

setLocalDescription()

The RTCPeerConnection.setLocalDescription() method changes the local description associated with the connection. This description specifies the properties of the local end of the connection, including the media format.

setRemoteDescription()

The RTCPeerConnection.setRemoteDescription() method changes the remote description associated with the connection. This description specifies the properties of the remote end of the connection, including the media format.

Obsolete method

The following method was obsoleted long ago and was never implemented in all major browsers.

RTCPeerConnection.createDTMFSender()

Creates a new RTCDTMFSender, associated to a specific MediaStreamTrack, that will be able to send DTMF phone signaling over the connection.

Constants

RTCBundlePolicy enum

The RTCBundlePolicy enum defines string constants which are used to request a specific policy for gathering ICE candidates if the remote peer isn't compatible with the SDP BUNDLE standard for bundling multiple media streams on a single transport link.

Note: In technical terms, a BUNDLE lets all media flow between two peers flow across a single 5-tuple; that is, from the same IP and port on one peer to the same IP and port on the other peer, using the same transport protocol.

Constant	Description
"balanced"	On BUNDLE-aware connections, the ICE agent should gather candidates for all of the media types in use (audio, video, and data). Otherwise, the ICE agent should only negotiate one audio and video track on separate transports.
"max-compat"	The ICE agent should gather candidates for each track, using separate transports to negotiate all media tracks for connections which aren't BUNDLE-compatible.
"max-bundle"	The ICE agent should gather candidates for just one track. If the connection isn't BUNDLE-compatible, then the ICE agent should negotiate just one media track.

RTCIceConnectionState enum

The RTCIceConnectionState enum defines the string constants used to describe the current state of the ICE agent and its connection to the ICE server (that is, the STUN or TURN server).

Constant	Description
"new"	The ICE agent is gathering addresses or is waiting to be given remote candidates through calls to RTCPeerConnection.addIceCandidate() (or both).
"checking"	The ICE agent has been given one or more remote candidates and is checking pairs of local and remote candidates against one another to try to find a compatible match, but has not yet found a pair which will allow the peer connection to be made. It's possible that gathering of candidates is also still underway.
"connected"	A usable pairing of local and remote candidates has been found for all components of the connection, and the connection has been established. It's possible that gathering is still underway, and it's also possible that the ICE agent is still checking candidates against one another looking for a better connection to use.
"completed"	The ICE agent has finished gathering candidates, has checked all pairs against one another, and has found a connection for all components.
"failed"	The ICE candidate has checked all candidates pairs against one another and has failed to find compatible matches for all components of the connection. It is, however, possible that the ICE agent did find compatible connections for some components.
"disconnected"	Checks to ensure that components are still connected failed for at least one component of the RTCPeerConnection. This is a less stringent test than "failed" and may trigger intermittently and resolve just as spontaneously on less reliable networks, or during temporary disconnections. When the problem resolves, the connection may return to the "connected" state.
"closed"	The ICE agent for this RTCPeerConnection has shut down and is no longer handling requests.

RTCIceGatheringState enum

The RTCIceGatheringState enum defines string constants which reflect the current status of ICE gathering, as returned using the RTCPeerConnection.iceGatheringState property. You can detect when this value changes by watching for an event of type icegatheringstatechange.

Constant	Description
"new"	The peer connection was just created and hasn't done any networking yet.
"gathering"	The ICE agent is in the process of gathering candidates for the connection.
"complete"	The 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 "gathering" to gather those candidates.

RTCIceTransportPolicy enum

The RTCIceTransportPolicy enum defines string constants which can be used to limit the transport policies of the ICE candidates to be considered during the connection process.

Constant	Description
"all"	All ICE candidates will be considered.
"public"	Only ICE candidates with public IP addresses will be considered. Removed from the specification's May 13, 2016 working draft.
"relay"	Only ICE candidates whose IP addresses are being relayed, such as those being passed through a TURN server, will be considered.

RTCPeerConnectionState enum

The RTCPeerConnectionState enum defines string constants which describe states in which the RTCPeerConnection may be. These values are returned by the connectionState property. This state essentially represents the aggregate state of all ICE transports (which are of type RTCIceTransport or RTCDtlsTransport) being used by the connection.

Constant	Description
"new"	At least one of the connection's ICE transports (RTCIceTransports or RTCDtlsTransports) are in the "new" state, and none of them are in one of the following states: "connecting", "checking", "failed", or "disconnected", or all of the connection's transports are in the "closed" state.
"connecting"	One or more of the ICE transports are currently in the process of establishing a connection; that is, their RTCIceConnectionState is either "checking" or "connected", and no transports are in the "failed" state. <<< Make this a link once I know where that will be documented
"connected"	Every ICE transport used by the connection is either in use (state "connected" or "completed") or is closed (state "closed"); in addition, at least one transport is either "connected" or "completed".
"disconnected"	At least one of the ICE transports for the connection is in the "disconnected" state and none of the other transports are in the state "failed", "connecting", or "checking".
"failed"	One or more of the ICE transports on the connection is in the "failed" state.
"closed"	The RTCPeerConnection is closed. This value was in the RTCSignalingState enum (and therefore found by reading the value of the signalingState) property until the May 13, 2016 draft of the specification.

RTCRtcpMuxPolicy enum

The RTCRtcpMuxPolicy enum defines string constants which specify what ICE candidates are gathered to support non-multiplexed RTCP. <<<add a link to info about multiplexed RTCP.

Constant	Description
"negotiate"	Instructs the ICE agent to gather both RTP and RTCP candidates. If the remote peer can multiplex RTCP, then RTCP candidates are multiplexed atop the corresponding RTP candidates. Otherwise, both the RTP and RTCP candidates are returned, separately.
"require"	Tells the ICE agent to gather ICE candidates for only RTP, and to multiplex RTCP atop them. If the remote peer doesn't support RTCP multiplexing, then session negotiation fails.

RTCSignalingState enum

The RTCSignalingState enum specifies the possible values of RTCPeerConnection.signalingState, which indicates where in the process of signaling the exchange of offer and answer the connection currently is.

Constant	Description
"stable"	There is no ongoing exchange of offer and answer underway. This may mean that the RTCPeerConnection object is new, in which case both the localDescription and remoteDescription are null; it may also mean that negotiation is complete and a connection has been established.
"have-local-offer"	The local peer has called RTCPeerConnection.setLocalDescription(), passing in SDP representing an offer (usually created by calling RTCPeerConnection.createOffer()), and the offer has been applied successfully.
"have-remote-offer"	The remote peer has created an offer and used the signaling server to deliver it to the local peer, which has set the offer as the remote description by calling RTCPeerConnection.setRemoteDescription().
"have-local-pranswer"	The offer sent by the remote peer has been applied and an answer has been created (usually by calling RTCPeerConnection.createAnswer()) and applied by calling RTCPeerConnection.setLocalDescription(). This provisional answer describes the supported media formats and so forth, but may not have a complete set of ICE candidates included. Further candidates will be delivered separately later.
"have-remote-pranswer"	A provisional answer has been received and successfully applied in response to an offer previously sent and established by calling setLocalDescription().
"closed"	The connection is closed. Note: This value moved into the RTCPeerConnectionState enum in the May 13, 2016 draft of the specification, as it reflects the state of the RTCPeerConnection, not the signaling connection. You now detect a closed connection by checking for connectionState to be "closed" instead.

Specifications

Specification	Status	Comment
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCPeerConnection' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	56 56 51 — 56 Prefixed Prefixed Implemented with the vendor prefix: webkit	Yes	22	?	43 43 Promise based version. 37 — 43	?
RTCPeerConnection()	56 56 Before Chrome 63 the default value for the RTCConfiguration.rtcpMuxPolicy parameter was "negotiate&quot	Yes	22	?	43 43 Promise based version. 37 — 43	?
canTrickleIceCandidates	No	15	44	?	No	?
connectionState	No	No	No	No	No	No
currentLocalDescription	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
currentRemoteDescription	No	No	56	No	No	No
defaultIceServers	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
iceConnectionState	48 48 disconnected	15	52	?	43 43 Promise based version. 37 — 43	?
iceGatheringState	56	15	22	?	43 43 Promise based version. 37 — 43	?
localDescription	56	15	22	?	43 43 Promise based version. 37 — 43	?
peerIdentity	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
pendingLocalDescription	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
pendingRemoteDescription	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
remoteDescription	56	15	22	?	43 43 Promise based version and unprefixed. 38 — 43 Promise based version.	?
sctp	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
signalingState	56	15	22	?	43 43 Promise based version. 37 — 43	?
onaddstream	56	15	22	?	43 43 Promise based version. 37 — 43	?
onconnectionstatechange	No	No	No	No	No	No
ondatachannel	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
onicecandidate	56	15	22	?	43 43 Promise based version. 37 — 43	?
oniceconnectionstatechange	56	15	22	?	43 43 Promise based version. 37 — 43	?
onicegatheringstatechange	59	15	22	?	43 43 Promise based version. 37 — 43	?
onidentityresult	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
onidpassertionerror	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
onidpvalidationerror	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
onnegotiationneeded	56	15	22	?	43 43 Promise based version. 37 — 43	?
onpeeridentity	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
onremovestream	56	15	22 — 60	?	43 43 Promise based version. 37 — 43	?
onsignalingstatechange	56	15	22	?	43 43 Promise based version. 37 — 43	?
ontrack	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
addIceCandidate	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	15	22	?	43 43 Promise based version. 37 — 43	?
addStream	56	15	22	?	43 43 Promise based version. 37 — 43	?
addTrack	64	Yes	22	?	51	?
addTransceiver	No	No	59	No	No	No
createAnswer	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	15	22	?	43 43 Promise based version. 37 — 43	?
createDataChannel	56	No	22	?	43 43 Promise based version. 37 — 43	11
createOffer	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	15	22	?	43 43 Promise based version. 37 — 43	?
generateCertificate	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
getConfiguration	56	15	22	?	43 43 Promise based version. 37 — 43	?
getIdentityAssertion	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
getLocalStreams	56	15	22	?	43 43 Promise based version. 37 — 43	?
getReceivers	59	Yes	22	?	46	?
getRemoteStreams	56	15	22	?	43 43 Promise based version. 37 — 43	?
getSenders	64	Yes	22	?	51	?
getStreamById	56	15	22	?	43 43 Promise based version. 37 — 43	?
removeStream	56	15	22	?	43 43 Promise based version. 37 — 43	?
removeTrack	64	Yes	22	?	51	?
setConfiguration	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
setIdentityProvider	56	Yes	22	?	43 43 Promise based version. 37 — 43	?
setLocalDescription	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	15	22	?	43 43 Promise based version. 37 — 43	?
setRemoteDescription	56	15	22	?	43 43 Promise based version. 37 — 43	?
createDTMFSender	56	Yes	22	?	37 — 43 37 — 43 43 Promise based version.	?
onicecandidateerror	?	?	?	?	?	?
close	?	15	?	?	?	?
getDefaultIceServers	?	?	?	?	?	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	56 56 51 — 56 Prefixed Prefixed Implemented with the vendor prefix: webkit	56 56 51 — 56 Prefixed Prefixed Implemented with the vendor prefix: webkit	Yes	44 44 22 — 44 Prefixed Prefixed Implemented with the vendor prefix: moz	43 43 Promise based version. 37 — 43	?	6.0 6.0 5.0 — 6.0 Prefixed Prefixed Implemented with the vendor prefix: webkit
RTCPeerConnection()	56 56 Before Chrome 63 the default value for the RTCConfiguration.rtcpMuxPolicy parameter was "negotiate&quot	56 56 Before Chrome 63 the default value for the RTCConfiguration.rtcpMuxPolicy parameter was "negotiate&quot	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
canTrickleIceCandidates	No	No	Yes	44	No	?	6.0
connectionState	No	No	No	No	No	No	No
currentLocalDescription	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
currentRemoteDescription	No	No	No	?	No	No	No
defaultIceServers	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
iceConnectionState	48 48 disconnected	57	?	?	43 43 Promise based version. 37 — 43	?	7.0
iceGatheringState	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
localDescription	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
peerIdentity	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
pendingLocalDescription	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
pendingRemoteDescription	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
remoteDescription	56	56	Yes	44	43 43 Promise based version and unprefixed. 38 — 43 Promise based version.	?	6.0
sctp	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
signalingState	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onaddstream	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onconnectionstatechange	No	No	No	No	No	No	No
ondatachannel	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onicecandidate	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
oniceconnectionstatechange	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onicegatheringstatechange	59	59	Yes	44	43 43 Promise based version. 37 — 43	?	7.0
onidentityresult	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onidpassertionerror	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onidpvalidationerror	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onnegotiationneeded	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onpeeridentity	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onremovestream	56	56	Yes	44 — 60	43 43 Promise based version. 37 — 43	?	6.0
onsignalingstatechange	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
ontrack	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
addIceCandidate	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	Yes	44	43 43 Promise based version. 37 — 43	?	6.0 6.0 Promise based version and unprefixed. 5.0 — 6.0 Promise based version.
addStream	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
addTrack	64	64	Yes	44	51	?	6.0
addTransceiver	No	No	No	59	No	No	No
createAnswer	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	Yes	44	43 43 Promise based version. 37 — 43	?	6.0 6.0 Promise based version and unprefixed. 5.0 — 6.0 Promise based version.
createDataChannel	56	56	No	44	43 43 Promise based version. 37 — 43	11	6.0
createOffer	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	Yes	44	43 43 Promise based version. 37 — 43	?	6.0 6.0 Promise based version and unprefixed. 5.0 — 6.0 Promise based version.
generateCertificate	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
getConfiguration	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
getIdentityAssertion	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
getLocalStreams	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
getReceivers	59	59	Yes	44	46	?	6.0
getRemoteStreams	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
getSenders	64	64	Yes	44	51	?	6.0
getStreamById	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
removeStream	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
removeTrack	64	64	Yes	44	51	?	6.0
setConfiguration	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
setIdentityProvider	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
setLocalDescription	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	56 56 Promise based version and unprefixed. 50 — 56 Promise based version.	Yes	44	43 43 Promise based version. 37 — 43	?	6.0 6.0 Promise based version and unprefixed. 5.0 — 6.0 Promise based version.
setRemoteDescription	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
createDTMFSender	56	56	Yes	44	43 43 Promise based version. 37 — 43	?	6.0
onicecandidateerror	?	?	?	?	?	?	?
close	?	?	?	?	?	?	?
getDefaultIceServers	?	?	?	?	?	?	?

See also

• https://github.com/jesup/nightly-gupshup/blob/master/static/js/chat.js
• http://www.html5rocks.com/en/tutorials/webrtc/basics/#toc-simple
• TutorRoom: Node.js HTML5 video capture, peer-to-peer video and filesharing application (source on GitHub)