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iris-js-sdk

v3.5.23

Published

JavaScript SDK for Iris Platform

Downloads

67

Readme

Iris RTC JavaScript SDK

npm version Build Status

This document covers the APIs for Iris Rtc JavaScript SDK.

Iris RTC JavaScript SDK provides a stack of simple API's to build an application to make audio video calls, multi user conferences and PSTN call.

Architecture

Client: This layer controls the UI and uses the SDK to implement the desired use cases.

Iris Rtc JavaScript Sdk: SDK provides three classes IrisRtcConnection, IrisRtcStream and IrisRtcSession with number of API's to access to Iris Rtc platform.

IrisRtcConnection: This maintains connection with Rtc server. Responsible for sending and receiving messages.

IrisRtcStream: A stream consists of a particular type of media/data. For e.g. for a video call, it could be a audio or a video stream. For data sharing session, it could be a video file or an image or a file. IrisRtcStream provides API to create audio or video stream.

IrisRtcSession: This maps to a unique room/session which can be initiated or joined through SDK APIs. A session can have multiple participants and each participant can share their streams with other participants.

Participant: Each participant has a unique identifier and can share their streams with other participants. A participant can be part of multiple sessions. For self initiated call, a participant will have it's local stream.

Install Iris JS SDK

npm install iris-js-sdk

or include iris-js-sdk as script tag in html using

<script src="https://unpkg.com/iris-js-sdk/dist/iris-js-sdk.js"></script>

APIs

Initialize Iris SDK

To initialize Iris Rtc Sdk we need to set the RtcConfig and create intstances of three classes namely IrisRtcConnection, IrisRtcStream and IrisRtcSession.

  • IrisRtcConfig Update Create config json object with following parameters to and set it to IrisRtcConfig.

    -----------------------------------------------------------------------------
    Property                  Type            Description
    -----------------------------------------------------------------------------
    routingId                 string          (MANDATORY) Unique Id of the user
    irisToken                 string          (MANDATORY) iris JWT token
    domain                    string          (MANDATORY) Domain name e.g. "iris.comcast.com"
    type                      string          (MANDATORY) Call type e.g. "video", "audio", "pstn" or "chat"
    sessionType               string          (MANDATORY) Session type "create" or "join"
    roomId                    string          (MANDATORY) Unique room identifier received from EVM.
    useBridge                 boolean         (MANDATORY) For videobridge call "true" for peer to peer call "false" 
    stream                    string          (OPTIONAL)  By default call is "sendrecv". User can set "sendonly" or "recvonly"
    fromTN                    TN              (MANDATORY) Caller telephone number mandatory for PSTN calls only
    toTN                      TN              (MANDATORY) Callee telephone number mandatory for PSTN calls only
    videoCodec                string          (OPTIONAL)  Optional parameter to set vide codec. Default if H264
    urls                      json            (MANDATORY) JSON object with the eventManager urls as mentioned below
    urls.eventManager         string          (MANDATORY) "eventManagerUrl"
    useAnonymousLogin         boolean         (OPTIONAL)  true for anonymous calls
    roomName                  string          (MANDATORY for ANONYMOUS)  a random string, its a mandatory for anonymous calls
    logLevel                  integer         (OPTIONAL)  Log level required by user
    name                      string          (OPTIONAL)  Name of the participant
    publicId                  string          (OPTIONAL)  Public Id of the participant
    useUnifiedPlan            boolean         (OPTIONAL)  true for using unified plan for sdp or false for using plan-b
  • Example

      IrisRtcConfig.updateConfig(userConfig);
    • Initialize Iris Rtc configuration with above mentioned parameters.

    Notes: Check How to use IrisRtcSdk for more information on parameters

Create Connection

This API is called to create new IrisRtcConnection which is used to make a connection with rtc server. It accepts irisToken and rouitngId of the user which are required to create connection. On successful connection this will subscribe for notification based on topic like video or audio, user will be notified based on subscription topic.

  • API Name

      IrisRtcConnection.connect()
  • Parameters Pass the following parameters with connect API:

    -----------------------------------------------------------------------------
    Property                Type            Description
    -----------------------------------------------------------------------------
    irisToken               string          (MANDATORY) Authorization token
    routingId               string          (MANDATORY) Unique participant id. 
                                                        e.g. "[email protected]"
    eventManagerUrl         string          (MANDATORY) Event Manager url to make iris connection                                                    
  • Example

      var irisRtcConnection = new IrisRtcConnection();
      irisRtcConnection.connect(irisToken, routingId, eventManagerUrl);
    • Initialize Iris Rtc Connection object
    • Call connect API of Iris connection with irisToken and rouitngId of user
    • Wait for irisRtcConnection.onConnected callback if connection is successful or irisRtcConnection.onConnectionFailed callback if connection fails with error.
  • Events

    • onConnected event is triggered when the connection has been successfully established. Upon onConnected callback notification subscription is done.
    • onConnectionFailed event is triggered when failed to establish a connection

Create Stream

This API is called to create local media streams based on type of call, like audio call or video call. Client will receive local media streams. These streams are used to provide a local preview to user and used to create a iris rtc session.

  • API Name

      IrisRtcStream.createStream()
  • Parameters Pass the following parameters in object:

    -----------------------------------------------------------------------------
    Property                Type            Description
    -----------------------------------------------------------------------------
    streamConfig            object          (MANDATORY) Type of stream based on video call or audio call, resolution, contraints(OPTIONAL) 
                                                        e.g. {"streamType": streamType, "resolution": resolution, "constraints": constraints}
  • Example

      var irisRtcStream = new IrisRtcStream();
        
      var streamConfig = { 
        streamType : video,
        resolution : "hd",
        constraints : { video : false, audio: false }
      }
        
      irisRtcStream.createStream(streamConfig);
    • Initialize Iris Rtc Stream object
    • Call createStream API of Iris stream with streamType like 'video', 'audio'
    • Wait for Stream.onLocalStream callback to receive a local media stream
  • Event

    • onLocalStream event is triggered when the local video and audio tracks are successfully created.

Create Session

This API is called to create the rtc session. Manages differet types of calls like video call, audio call, PSTN/Sip call, chat messages and picture share. This API is used for creating a new session. Stream object received as parameter will be added to the conference.

  • API Name

      IrisRtcSession.createSession()
  • Parameters Pass the following parameter in createSession API call:

    -----------------------------------------------------------------------------
    Property                Type              Description
    -----------------------------------------------------------------------------
    userConfig              json              (MANDATORY) Same as the userConfig defined above should have 
                                                          type, irisToken, routingId and userData
                                                          type is call type like "video" or "audio"
                                                          roomId - Room id received from create room call
                                                          userData - Data and Notification payload to be sent to the createrootevent API
    connection              object            (MANDATORY) IrisRtcConnection object
    irisRtcStream           object            (MANDATORY) Instance of IrisRtcStream after createStream API is called
                                                          and stream is created.                                                                                            
  • Example

      var irisRtcSession = new IrisRtcSession();
      irisRtcSession.createSession(userConfig, connection, irisRtcStream);
    • Initialize Iris Rtc Session object.
    • Call createSession API of Iris Session with streamObject which has local meida tracks which are received in onLocalStream, participants to whom user is calling, user data that is to be sent for the createrootevent request and notification payload in case of incoming call.
    • Wait for irisRtcSession.onSessionCreated and irisRtcSession.onSessionConnected to receive on successfull session creatd notifications.
  • Events

    • onSessionCreated event is triggered when the session is successfully created.
    • onSessionConnected event is triggered when the user joins the session.

Join Session

This API is called to join the rtc session. Manages differet types of calls like video call, audio call, PSTN/Sip call, chat messages and picture share. This API is used for joining a new session. Stream object received as parameter will be added to the conference.

  • API Name

      IrisRtcSession.joinSession
  • Parameters Pass the following parameter in joinSession API call:

    -----------------------------------------------------------------------------
    Property                Type              Description
    -----------------------------------------------------------------------------
    userConfig              json              (MANDATORY) Same as the userConfig defined above should have 
                                                          type, irisToken and userData.
                                                          type is call type like "video" or "audio"
                                                          roomId - Room id received from create room call
                                                          userData - Data and Notification payload to be sent to the createrootevent API
    connection              object            (MANDATORY) IrisRtcConnection object
    irisRtcStream           object            (MANDATORY) Instance of IrisRtcStream after createStream API is called
                                                          and stream is created.  
    notificationPayload     json              (MANDATORY) This is the notification payload received through onNotifcation event
                                                          pass this notification as received - DONT ALTER ANY PARAMETERS                                                               
  • Example

      var irisRtcSession = new IrisRtcSession();
      irisRtcSession.joinSession(config, connection, irisRtcStream, notificationPayload);
    • Initialize Iris Rtc Session object.
    • Call joinSession API of Iris RTC Session with Instance of IrisRtcStream once the stream is created after calling createStream, userConfig with callType and notification payload in case of incoming call.
    • Wait for irisRtcSession.onSessionCreated and irisRtcSession.onSessionConnected to receive on successfull session creatd notifications.
  • Events

    • onSessionCreated event is triggered when the session is successfully created.
    • onSessionConnected event is triggered when the user joins the session.

Reject Session

This API is called to reject an incoming PSTN/Sip session. The notification object received in the incoming call notification will be used to reject the incoming PSTN call .

  • API Name

      IrisRtcSession.rejectSession
  • Parameters Pass the following parameter in joinSession API call:

    -----------------------------------------------------------------------------
    Property                Type              Description
    -----------------------------------------------------------------------------
    notificationPayload     json              (MANDATORY) This is the notification payload received through onNotifcation event
                                                          Pass this notification as received - DON'T ALTER ANY PARAMETERS
                                                                        
  • Example

      irisRtcConnection.rejectSession(notificationPayload);
    • Call rejectSession API of Iris RTC Connection with notification payload of the incoming call.

Create Chat Session

This API is called to create a new chat ONLY iris rtc session. provides option for group chat messages

  • API Name

      IrisRtcSession.createChatSession
  • Parameters Pass the following parameter in createChatSession API call:

    -----------------------------------------------------------------------------
    Property                Type              Description
    -----------------------------------------------------------------------------
    userConfig              json              (MANDATORY) Same as the userConfig defined above should have 
                                                          type and userData.
                                                          type is call type like "chat"
                                                          roomId - Room id received from create room call
                                                          userData - Data and Notification payload to be sent to the createrootevent API
    connection              object            (MANDATORY) IrisRtcConnection object                            
  • Example

      var irisRtcSession = new IrisRtcSession();
      irisRtcSession.createChatSession(userConfig, connection);
    • Initialize Iris Rtc Session object.
    • Call createChatSession API of Iris RTC Session withnuserConfig with callType and roomId
    • Wait for irisRtcSession.onSessionCreated and irisRtcSession.onSessionConnected to receive on successfull session created events.
  • Events

    • onSessionCreated event is triggered when the session is successfully created.
    • onSessionConnected event is triggered when the user joins the session.

Join Chat Session

This API is called to join the chat rtc session. Manages group chat messages. This API is used for joining a chat session. Stream object received as parameter will be added to the conference.

  • API Name

      IrisRtcSession.joinChatSession
  • Parameters Pass the following parameter in joinChatSession API call:

    -----------------------------------------------------------------------------
    Property                Type              Description
    -----------------------------------------------------------------------------
    userConfig              json              (MANDATORY) Same as the userConfig defined above should have 
                                                          type and userData.
                                                          type is call type like "chat"
                                                          roomId - Room id received from create room call
                                                          userData - Data and Notification payload to be sent to the createrootevent API
    connection              object            (MANDATORY) IrisRtcConnection object                            
    notificationPayload     json              (MANDATORY) This is the notification payload received through onNotifcation event
                                                          pass this notification as received - DONT ALTER ANY PARAMETERS                                                               
  • Example

      var irisRtcSession = new IrisRtcSession();
      irisRtcSession.joinChatSession(userConfig, connection, notification);
    • Initialize Iris Rtc Session object.
    • Call joinChatSession API of Iris RTC Session with userConfig which has callType and notification payload received through onNotification.
    • Wait for irisRtcSession.onSessionCreated and irisRtcSession.onSessionConnected to receive on successfull session creatd notifications.
  • Events

    • onSessionCreated event is triggered when the session is successfully created.
    • onSessionConnected event is triggered when the user joins the session.

Send Chat Messages

This API allows user to send group chat messages.

  • API Name

      IrisRtcSession.sendChatMessage
  • Parameters Pass the following parameter in sendChatMessage api call:

    -----------------------------------------------------------------------------
    Property                Type            Description
    -----------------------------------------------------------------------------
    roomId                  string          (MANDATORY) Unique id of the room
    message                 String          (MANDATORY) Message to be sent
    id                      string          (MANDATORY) Unique id for the message
  • Example

      irisRtcSession.sendChatMessage(roomId, id, message)
    • Call sendChatMessage API of Iris Rtc Session to send messages.

Receive Chat Messages

This API allows user to receive group chat messages.

  • API Name

      IrisRtcSession.onChatMessage
  • Parameters Parameter in onChatMessage api call are roomId and chatMsgJson which will have:

    -----------------------------------------------------------------------------
    Property                Type            Description
    -----------------------------------------------------------------------------
    message                 string          Message received
    from                    string          Remote participant id
    rootNodeId              string          Root node id for the message
    childNodeId             string          Child node id for the meesage
  • Example

      irisRtcSession.onChatMessage = function(roomId, chatMsgJson){}
    • Call onChatMessage API of Iris Rtc Session to receive messages.

Receive Chat Message Acknowledgement

This API allows user to receive acknowledgement for group chat messages.

  • API Name

      IrisRtcSession.onChatAck
  • Parameters Parameter in onChatAck api call are roomId and chatAckJson which will have :

    -----------------------------------------------------------------------------
    Property                Type            Description
    -----------------------------------------------------------------------------
    id                      string          Unique id for the message sent
    statusCode              string          Status of the sent message
                                            200 : Messages is sent
                                            400 : Failed to send
                                            0 : Evm is not available
    statusMessage           string          Status message above codes "Sucess", "Failed" and "Evm is down"
    rootNodeId              string          Tiemebased v1 uuid
    childNodeId             string          Timebased v1 uuid
     
  • Example

      irisRtcSession.onChatAck = function(roomId, chatAckJson){}
    • Listen to onChatAck callback of Iris Rtc Session to receive ack messages.

Audio Mute

This API allows user to mute local audio.

  • API Name

      IrisRtcSession.audioMuteToggle
  • Example

      irisRtcSession.audioMuteToggle(roomId)
    • Call audioMuteToggle API of Iris Session when you want to mute audio.

Video Mute

This API allows user to mute local video.

  • API Name

      IrisRtcSession.videoMuteToggle
  • Example

      irisRtcSession.videoMuteToggle(roomId)
    • Call videoMuteToggle API of Iris Session when you want to mute video

Mute Remote Participant Audio

This API allows user to mute remote participant audio.

  • API Name

      IrisRtcSession.muteParticipantAudio
  • Example

      irisRtcSession.muteParticipantAudio(roomId, jid, mute)
    • Call muteParticipantAudio API of Iris Session when you want to mute participant audio.

Mute Remote Participant Video

This API allows user to mute remote participant video.

  • API Name

      IrisRtcSession.muteParticipantVideo
  • Example

      irisRtcSession.muteParticipantVideo(roomId, jid, mute)
    • Call muteParticipantVideo API of Iris Session when you want to mute participant video

Set Display Name

This API allows user to set the display name.

  • API Name

      IrisRtcSession.setDisplayName
  • Example

      irisRtcSession.setDisplayName(roomId, name)
    • Call setDisplayName API of Iris Session to set the display name

End the Call

This API allows user to disconnect or end a call or session.

  • API Name

      IrisRtcSession.endSession
  • Example:

      irisRtcSession.endSession(roomId);
    • Call endSession API of Iris Session to end the call.
  • Events

    • onSessionEnd event is triggered when session is closed.

Disconnect Rtc Connection

This API allows user to close connection with rtc server.

  • API Name

      IrisRtcConnection.close
  • Example

      irisRtcConnection.close();
    • Call close API of Iris Connection to end the connection.
  • Event

    • onClose event is triggered when the session is closed.

Hold PSTN Call

This API allows user to put call on hold.

  • API Name IrisRtcSession.pstnHold()

  • Example

      irisRtcSession.pstnHold(roomId, participnatJid)
    • Call pstnHold API of Iris session to put a call on hold.

Unhold PSTN Call

This API allows user to unhold the call.

  • API Name

      IrisRtcSession.pstnUnHold
  • Example

      irisRtcSession.pstnUnHold(roomId, participantJid)
    • Call pstnUnHold API of Iris session to come back to call again.

Merge PSTN Call

This API allows user to merge two pstn calls.

  • API Name

      IrisRtcSession.pstnMerge
  • Example

      irisRtcSession.pstnMerge(roomId, firstParticipantJid, secondSession, secondParticipantJid)
    • Call pstnMerge API of Iris session to merge two pstn calls

Switch Streams

This API allows user to switch streams between the cameras, can be used for screen share as well

  • API Name

      IrisRtcSession.switchStream
  • Example

      //irisRtcStream is an IrisRtcStream object to listen to local streams
      var streamConfig = { 
        streamType : video,
        resolution : "hd",
        constraints : { video : false, audio: false }
      }
      irisRtcSession.switchStream(roomId, irisRtcStream, streamConfig);
    • Call switchStream API of to change the stream user is streaming

Kick Participant

This API allows room moderator to kick other participants out of the room. Kicked out pariticpant won't be able to rejoin the current session. And only a moderator can kick participants.

  • API Name

      IrisRtcSession.kickParticipant
  • Example

      irisRtcSession.kickParticipant(roomId, participantJid, participantName);
    • Call kickParticipant API to evict a participant from ongoing session.

Lock Room

This API allows room moderator to lock the room with exitsing number of participants in an ongoing sesison. Once room is locked no new participants are allowed to join the room. During a session if any participant gets disconnected because of some reason, moderator can control whether or not disconnected participant to be allowed to join the room again by setting rejoin attribute to true/false while calling this API.

  • API Name

      IrisRtcSession.lockRoom
  • Example

      irisRtcSession.lockRoom(roomId, rejoin);
    • Call lockRoom API to lock an ongoing session with existing number of participants.

Unlock Room

This API allows room moderator to unlock the already locked room, Once room is unlocked new participants can join the room.

  • API Name

      IrisRtcSession.unlockRoom
  • Example

      irisRtcSession.unlockRoom(roomId);
    • Call lockRoom API to unlock an already locked session.

Callback Event Handlers

onConnected

Client should implement this callback function to receive an event when connection is successfully established.

  • Callback Name
  IrisRtcConnection.onConnected
  • Usage:
      irisRtcConnection.onConnected = function() {
        // Rtc connection established 
      }

onConnectionFailed

Client should implement this callback function to receive an event when connection fails due to an error

  • Callback Name
  IrisRtcConnection.onConnectionFailed
  • Usage:
  irisRtcConnection.onConnectionFailed = function(error){
    // Rtc connection failed
  }

Receive LocalStream

To display the local preview of the client, client has to implement this callback function. This allows user to receive local video tracks and audio tracks.

  • Callback Name
  IrisRtcStream.onLocalStream
  • Usage:
  IrisRtcStream.onLocalStream = function(stream) {
    // Local stream is received
  } 
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type                      Description
      ---------------------------------------------------------------------------
      stream              object                    (MANDATORY) An object with audio and video streams

Receive RemoteStream

To display the remote video of the participant, client has to implement this callback function. This allows user to receive remote video tracks and audio tracks.

  • Callback Name
  IrisRtcSession.onRemoteStream
  • Usage:

      irisRtcSession.onRemoteStream = function(roomId, remoteStream) {
        // Remote particpants stream is received
      }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type                    Description
      ---------------------------------------------------------------------------
      roomId              string                  (MANDATORY) Unique id of the room
      remoteStream        object                  (MANDATORY) An object with remote audio and video streams

Session Created

Client should implement this callback function to receive an event when a session is successfully created.

  • Callback Name
  onSessionCreated
  • Usage:

      IrisRtcSession.onSessionCreated = function(roomID) {
        // Room is created and user has joined
        // roomId - unique id of the room
      }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type            Description
      ---------------------------------------------------------------------------
      roomId              string          Unique id of the room

Session Connected

Client should implement this callback function to receive an event when the user joins session.

  • Callback Name
  onSessionJoined
  • Usage:
  // Listen on session object
  irisRtcSession.onSessionConnected = function(roomId) {
    // Connection is established between particpants
  }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type            Description
      ---------------------------------------------------------------------------
      roomId              string          Unique id for the room

Remote Participant Joined

Client should implement this callback function to receive an event when the user joins session.

  • Callback Name
  onSessionParticipantJoined
  • Usage:
  // Listen on session object
  irisRtcSession.onSessionParticipantJoined = function(roomId, participantJid) {
    // Remote participant has joined the conference
  }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type            Description
      ---------------------------------------------------------------------------
      roomId              string          Unique id of the room
      participantJid      string          Remote particpant's unique id

Session Connection Error

Client should implement this callback function to receive an event when there is an error in establishing connection between particpants in a session.

  • Callback Name
  onConnectionError
  • Usage:
  // Listen on session object
  irisRtcSession.onError = function(roomId, error) {
    // Session creation is failed with an error
  }

Participant Leaves Session

Client should implement this callback function to receive an event when a remote participant leaves the session.

  • Callback Name
  onSessionParticipantLeft
  • Usage:
   // Listen on session object
   irisRtcSession.onSessionParticipantLeft = function(roomId, participantJid, closeSession) {
     // Remote participant has left the room
   }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property            Type            Description
      ---------------------------------------------------------------------------
      roomId              string          Unique id for room
      participantJid      string          Remote particpant's unique id
      closeSession        boolean         This boolean is true when last particpant is left the room
        

Dominant Speaker Change

Client should implement this callback function to receive an event about dominant speaker change in the conference.

  • Callback Name
  onDominantSpeakerChanged
  • Usage:

      // Listen to event on session object
      irisRtcSession.onDominantSpeakerChanged = function(roomId, id) {
        // Dominant speaker in conference is changed
      }
  • Parameters Following parameters are received through callback function:

      ---------------------------------------------------------------------------
      Property          Type            Description
      ---------------------------------------------------------------------------
      roomId            string          Unique id of the room
      id                string          "id" of the dominant speaker 

How to use IrisRtcSdk

Install SDK

Install Iris JavaScript SDK using npm

npm install iris-js-sdk

or include iris-js-sdk as script tag in html using

<script src="https://unpkg.com/iris-js-sdk/dist/iris-js-sdk.min.js"></script>

Example for Using API's

  // Require iris-js-sdk in client. This will load IrisRtcConnection,
  // IrisRtcSession and IrisRtcStream
  var IrisRtcSDK = require(iris-js-sdk);
  var IrisRtcConnection = IrisRtcSDK.IrisRtcConnection;
  var IrisRtcStream = IrisRtcSDK.IrisRtcStream;
  var IrisRtcSession = IrisRtcSDK.IrisRtcSession;
  
  // Initializing Iris Rtc Sdk
  // Initialize configuration with below mentioned parameters.

  var config = {};
  
  // Unique routingId of the particpant
  config.routingId            =     ""
  
  // Iris JWT token
  config.irisToken            =     ""
  
  // application is domain
  config.domain               =     "xxxxxxxx.xxxxxxx.com";
  
  // Type of call user wants to make
  // "video" - call with both video and audio
  // "audio" - call with only audio
  // "pstn"  - call with audio for PSTN
  // "chat"  - call with only chat messages
  config.type                 =     "video";
  
  // Session type create session or join session
  config.sessionType          =      "create" // "join"
  
  // A boolean value
  // "true" - Uses videobridge
  // "false" - Uses P2P
  config.useBridge            =     true;
  
  // A boolean value
  // "true" - enables user to join an anonymous session 
  // "false" - Non-anonymous call user has to provide username and password to login
  config.useAnonymousLogin    =     true;
  
  // Any alphanumeric string can be a roomName or session name to join anonymous session
  config.roomName             =     "room";
  
  // Make two way or one way call
  // "sendrecv" - Two way call
  // "sendonly" - Caller sends his media and wont receive any media from remote participant
  // "recvonly" - Caller receives remote participants media and doesn't share is media.
  // It is an optional parameter by default it will be "sendrecv"
  config.stream               =     "sendonly"
  
  // Telephone number of the participant
  config.fromTN               =     1234567890
  
  // Telephone number of the remote participant
  config.toTN                 =     1234567890

  // SDK log levels
  // 0 : ERROR; 1 : WARNING; 2 : INFO; 3 :  VERBOSE
  config.logLevel             =       3
  
  // Set name for the user
  config.name                 =     "Shiva"

  // URLs required 
  config.urls.eventManager    =     "url";

  // Initialize IrisRtcSdk with init by passing config 
  IrisRtcConfig.updateConfig(config);

  // Create Iris Rtc Connection
  //
  // Initialize Iris Rtc Connection object
  // Call connect API of Iris connection with irisToken and routingId of user
  // Wait for IrisRtcConnection.onConnected callback if connection is successful or 
  // IrisRtcConnection.onConnectionFailed callback if connection fails with error.  

  var irisRtcConnection = new IrisRtcConnection();
  irisRtcConnection.connect(irisToken, routingId);

  irisRtcConnection.onConnected = function() {
    // Connection is successful with rtc server.
    // Subscribed to receive incoming call notification
    // Now do Iris create stream
  }
  
  irisRtcConnection.onConnectionFailed = function(){
    // Connection failed
  }
  
  // Create Iris Rtc Stream
  //
  // Initialize Iris Rtc Stream object
  // Call createStream API of Iris stream with json streamConfig which has 
  // streamType - 'video', 'audio'
  // constraints - Media constraints
  // resolution - "hd" or "sd"
  // Wait for IrisRtcStream.onLocalStream callback to receive local video and audio tracks
  // These tracks previewed to the user and also these are passed as agrument to create a
  // new iris rtc session.

  var irisRtcStream = new IrisRtcStream();
  
  // set stream type as video or audio and video resolution
  var streamConfig = {
      "streamType": "video", // audio, pstn
      "resolution": "hd", //640, 320
  }
  // Set media constraints, this is optional if you are setting streamType above
  // It is an optional parameter 
  var constraints = {
    video : { mandatory: {}, optional: [] },
    audio : { mandatory: {}, optional: [] }
  }
  streamConfig.constraints = constraints;
  
  // User can either set streamType or constraints
  var localStream = irisRtcStream.createStream(streamConfig);
  
  irisRtcStream.onLocalStream = function(localStream) {
    // Render local video and audio to user
    // Pass these tracks to createSession API of IriRtcSession to create session
  } 

  // Create Iris Rtc Session
  //
  // Call createSession API of Iris Session with 
  // "userConfig" userConfig object created above with type, roomId and userData
  // "connection" Iris rtc connection object
  // "irisRtcStream" - Instance of IrisRtcStream after creating stream using createStream API
  // Session manages audio call, video call, pstn calls, chat messages
  
  var irisRtcSession = new IrisRtcSession();
  irisRtcSession.createSession(userConfig, connection, irisRtcStream);

  // Wait for irisRtcSession.onSessionCreated callback event 
  irisRtcSession.onSessionCreated = function(roomId) {
    // Session is created
  }
  
  // Wait for irisRtcSession.onSessionJoined callback event 
  irisRtcSession.onSessionJoined = function(roomId, myJid) {
    // User joined the session
  }
  
  // Wait for irisRtcSession.onSessionJoined callback event.
  irisRtcSession.onSessionConnected = function(roomId) {
    // User joined the session
  }
  
  // Wait for irisRtcSession.onSessionParticipantJoined callback event
  irisRtcSession.onSessionParticipantJoined = function(roomId, participantJid) {
    // Remote participant joined the session
  }
  
  // On remote stream received from remote participant
  irisRtcSession.onRemoteStream = function(roomId, remoteStream) {
    // Render remote media tracks to user
  }
  
  irisRtcSession.onError = function(error) {
    // Error while joining the session
  }

  irisRtcSession.onSessionParticipantLeft = function(roomId, participantJid, closeSession) {
    // Remote participant left the conference. 
    // Remove local tracks from conference
    // end the session
  }
      
  // To set display name
  // Call this API to set display name
  irisRtcSession.setDisplayName(roomId, name);
  

  // To Send and Receive chat messages
  // To send chat message call sendChatMessage
  // message - text message to be sent
  // id - Unique Id for the message
  irisRtcSession.sendChatMessage(roomId, id, message);

  // To receive chat message
  // Listen to onChatMessage on session object
  irisRtcSession.onChatMessage = function(roomId, chatMsgJson){
    // Text message is received from a participant
  }
  
  // Listen to this callback for Chat message acknowledgement
  irisRtcSession.onChatAck = function(roomId, chatAckJson){
    // This event is recieved for every message sent out
    // chatAckJson will id, statusCode, statusMessage, rootNodeId
    // and childNodeId paramaeters
  }
  
  // Screen Share or Switch Streams
  //
  // To switch streams between two camera devices
  // This API also used for screen share with constraints in streamConfig
  // irisRtcStream is an object of IrisRtcStream to listen to onLocalStream
  irisRtcSession.switchStream(irisRtcStream, streamConfig){
   // Switches the stream from one camera or other
   // can share screen as well
  }

  // Call toggleAudioMute API of Iris Stream when you want to mute audio.
  irisRtcSession.audioMuteToggle(roomId)

  // Call toggleVideoMute API of Iris Stream when you want to mute video.
  irisRtcSession.videoMuteToggle(roomId)

  // Call muteParticipantAudio API of Iris Stream when you want to mute participant audio.
  irisRtcSession.muteParticipantAudio(roomId, jid, mute)

  // Call muteParticipantVideo API of Iris Stream when you want to mute participant video.
  irisRtcSession.muteParticipantVideo(roomId, jid, mute)

  // End Iris Rtc Session
  // Call endSession API of Iris Session to end the call
  irisRtcSession.endSession(roomId);

  // Disconnect rtc connection.
  irisRtcConnection.close();