override fun onCreate() {
                                                            
super.onCreate();
                                                            
//activity to open when use clicked from notification
                                                            
//activity to open when a user logout from the app.
                                                            
ChatManager.startActivity = MainActivity::class.java
                                                            
//for chat logging
                                                            
LogMessage.enableDebugLogging(BuildConfig.DEBUG)
                                                            
.....
                                                            
}
                                                        
FlyCore.registerUser(USER_IDENTIFIER, FCM_TOKEN) { isSuccess, throwable, data ->
                                                        
if(isSuccess) {
                                                            
val responseObject = data.get("data") as JSONObject
                                                            
// Get Username, password and Auth token from the object
                                                            
} else {
                                                                
// Register user failed print throwable to find the exception details.
                                                        
}
      
                                                        
}
                                                        
ChatConnectionManager.initialize(USERNAME, SECRET_KEY, XMPP_DOMAIN, XMPP_HOST, XMPP_PORT)
                                                        
ChatManager.makeXMPPConnection()
   
                                                    
                                                

                                                
                                                    

                                                    
const SDK = window.SDK;
                                                    
export default SDK;
                                                    
import SDK from "./SDK";
                                                    
const initializeObj = {
                                                            
xmppSocketHost:`HOST`,
                                                            
xmppSocketPort:`PORT`,
                                                            
ssl `SSL`,
                                                            
encryptKey:`ENCRYPT_KEY`,
                                                            
apiBaseUrl:`API_URL`,
                                                            
licenseKey:`LICENSE_KEY`,
                                                            
isSandbox:`SANDBOX_MODE`,
                                                            
callbackListeners:{},
                                                            
signalServer:`SIGNAL_SERVER`,
                                                            
janusUrl:`JANUS_URL`,
                                                    
};
                                                    
await SDK.initializeSDK(initializeObj);
                                                    
await SDK.register(`USER_IDENTIFIER`);
                                                    
await SDK.login(`USERNAME`, `PASSWORD`);
                                                    
                         
                                                

                                                
  
                                                
let groupConfig = try? GroupConfig.Builder
                                                
.enableGroupCreation(groupCreation: true)
                                                
.onlyAdminCanAddOrRemoveMembers(adminOnly: true)
                                                
.setMaximumMembersInAGroup(membersCount: 200)
                                                
.build()
                                                
ChatSDK.Builder.enableContactSync(isEnable: true)
                                                
.setDomainBaseUrl(baseUrl: "YOUR API BASE URL")
                                                
.setMaximumPinningForRecentChat(maxPinChat: 4)
                                                
.setGroupConfiguration(groupConfig: groupConfig!)
                                                
.deleteMediaFromDevice(delete: true)
                                                
.setAppGroupContainerID(containerID: "YOUR GROUP CONTAINER ID")
                                                
.buildAndInitialize()
                                                
ChatManager.shared.initialize(username: USERNAME, secretKey:SECRET_KEY, xmppDomain: XMPP_DOMAIN, xmppPort: XMPP_PORT)
                                                
ChatManager.makeXMPPConnection()