Introductions:

The Call In App JavaScript SDK for integrating the Call In App features to your React Native app.

Peer Dependencies

The following dependencies should be installed manually if they are not installed automatically along with @callinapp/react-native:

react-native-webrtc

@react-native-community/async-storage

react-native-incall-manager

react-native-get-random-values

Important notes

Must add this line before import @callinapp/react-native

import 'react-native-get-random-values'

SDK usage guidelines:

Main components:

• CallInAppSession: For initializing session from client to Call In App server.

  • Constructor:

    CallInAppSession(user)

    • user options:

      • wssUrl: Socket URL to the Call In App Server

      • extension: Extenstion name

      • domain: Domain name

      • password: Plain password

      • callOptions: {

          callerIdName: Caller Id Name
                  
          callerIdNumber: Call Id Number

        }

      • userInfo: {

          // Other info here. Ex. email
                   

        }

      • autoReconnect: Default: true

      • autoRecoveryCall: Auto recovery the call when app closed unexpectedly. Default: true

  • Properties:

    • isLoggedIn: Whether user logged in.

  • Methods:

    • connect(): Connect to the Call In App server with user options
    • close(): Close the connection to the Call In App server.
    • on(EVENT_NAME, callback): Start listening a CallInAppEvent:
      • EVENT_NAME: CallInAppEvent event
      • callback(err, data): Callback function for handling the event.
    • off(EVENT_NAME[, callback]): Stop listening a CallInAppEvent
    • testSpeed(): Test connection speed to the Call In App server. The data will be returned into Promise object or sent to CallInAppEvent.ON_SPEED_CHANGE.
      • Return: Promise({ upDur, downDur, upKps, downKps })
      • on(CallInAppEvent.ON_SPEED_CHANGE, (err, { upDur, downDur, upKps, downKps } ))
    • newCall(options):

      • options:

        {

          destinationNumber: (required) Extension or number
          callerIdName: (optional)
          callerIdNumber: (optional)
                        

        }

• CallInAppEvent: Events will be emitted during the Call In App Session. We can catch those events with callback functions:

  - Ex:

    const session = new CallInAppSession(user);
    session.on(CallInAppEvent.<EVENT_NAME>, (err, data) => {
        console.log(err, data);
    })

  • ON_READY
  • ON_CLOSED
  • ON_ERROR
  • ON_RETRYING
  • ON_LOGIN_ERROR
  • ON_LOGIN_SUCCESS
  • ON_SPEED_CHANGE:
  • ON_USER_MEDIA_ERROR
  • ON_USER_PEER_ERROR
  • ON_INCOMING_CALL
  • ON_RECOVERY_CALL
  • ON_CALL_LOCAL_STREAM
  • ON_CALL_REMOTE_STREAM
  • ON_CALL_STATE_UPDATE
  • ON_CONFERENCE_JOINED
  • ON_CONFERENCE_LEFT
  • ON_CONFERENCE_MEMBER_JOINED
  • ON_CONFERENCE_MEMBER_LEFT
  • ON_CONFERENCE_MEMBER_UPDATED
  • ON_CONFERENCE_MEMBER_CLEARED
  • ON_CONFERENCE_CHAT_MESSAGE
  • ON_CHAT_MESSAGE

• CallState:

  • NEW
  • REQUESTING
  • TRYING
  • RECOVERING
  • RINGING
  • ANSWERING
  • EARLY
  • ACTIVE
  • HELD
  • HANGUP
  • DESTROYED
  • PURGE

• CallInAppUtil: Some utility functions:

  • mediaDevices:
    • enumerateDevices(kind)
      • kind: audioinput, videoinput, audiooutput
    • checkUserMediaPermission(constraints):
      • constraints: Refer to MediaStreamConstraints

• Call:

  • Properties:
    • id
    • localStream
    • remoteStream
    • state: CallState
    • activeTime: Active time in milliseconds since January 1, 1970 (midnight UTC/GMT).
    • screenShareCall
    • callType: inbound/outbound
    • options
    • isConference: Whether call is a conference.
  • Functions
    • answer(options)
    • hangup(options)
    • toggleMuteMic()
    • muteMic()
    • unmuteMic()
    • toggleMuteCam()
    • muteCam()
    • unmuteCam()
    • sendDtmf()
    • toggleHold()
    • hold()
    • unhold()
    • switchCamera()
    • toggleSpeaker()
    • useSpeaker()
    • disuseSpeaker()

• Conference:

  • Properties:
    • id: Conference id
    • members: Conference members
    • role: Conference role: moderator/participant
  • Functions
    • sendChat(message, type = 'message'): Send a chat message to conference channel.
  • Moderator Funtions
    • listVideoLayouts()
    • setVideoLayout(layoutName)
    • kick(memberId)
    • muteMic(memberId)
    • muteCam(memberId)
    • videoFloor(memberId)
    • volumeDown(memberId)
    • volumeUp(memberId)

###***Issues and Resolutions:

1. React Native from v0.62 has issues with Flipper causing Android app crashes. -> Add android.enableDexingArtifactTransform.desugaring=false to gradle.properties file

2. Permissions required for access device camera and microphone:

   • Android: Add to AndroidManifest.xml file:

     <uses-permission android:name="android.permission.CAMERA" />

     <uses-feature android:name="android.hardware.camera" />

     <uses-feature android:name="android.hardware.camera.autofocus"/>

     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

     <uses-permission android:name="android.permission.RECORD_AUDIO" />

     <uses-permission android:name="android.permission.WAKE_LOCK" />

     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

   • iOS: Add to Info.plist file:

       `<key>NSCameraUsageDescription</key>`
             
       `<string>Camera Permission</string>`
             
       `<key>NSMicrophoneUsageDescription</key>`
             
       `<string>Microphone Permission</string>`
         

##Examples: Please refer to examples for detailed usage.

If you need an account for running the example, please email to Call In App Team.

*** TypeScript support: Currently the SDK does not support TypeScript. We'll add it soon.