CoGuestStore

Introduction
Co-guest feature enables real-time interaction between hosts and audience members through a seat-based system. CoGuestStore provides a comprehensive set of APIs to manage the entire co-guest lifecycle.
Important: 
Always use the factory method CoGuestStore.create with a valid live room ID to create a CoGuestStore instance. Do not attempt to initialize directly.
Note: 
Co-guest state updates are delivered through the coGuestState publisher. Subscribe to it to receive real-time updates about connected users, invitations and applications.
Warning: 
If a co-guest request does not receive a response within the specified timeout, an event with NoResponseReason.timeout will be triggered. Always handle timeout scenarios in your UI.
Features
Bidirectional Invitation：Hosts can invite audience members, and audience members can also apply to join
State Management：Real-time tracking of connected users, invitations and applications
Event-Driven Architecture：Provides separate event streams for host and guest roles
Timeout Handling：Built-in timeout mechanism for invitations and applications
Subscribable Data
CoGuestState fields are described below:
Property
Type
Description
connected
StateFlow<List<SeatUserInfo>>
List of users already on seats.
invitees
StateFlow<List<LiveUserInfo>>
List of users invited by host.
applicants
StateFlow<List<LiveUserInfo>>
List of users who applied for co-guest received by host.
candidates
StateFlow<List<LiveUserInfo>>
List of candidate users for co-guest.
API List
Function
Description
CoGuestStore.create
Create object instance.
addHostListener
Host-side event callbacks.
removeHostListener
Host-side event callbacks.
addGuestListener
Guest-side event callbacks.
removeGuestListener
Guest-side event callbacks.
applyForSeat
Guest applies for co-guest.
cancelApplication
Guest cancels application.
acceptApplication
Host accepts application.
rejectApplication
Host rejects application.
inviteToSeat
Host invites guest to co-guest.
cancelInvitation
Host cancels invitation.
acceptInvitation
Guest accepts invitation.
rejectInvitation
Guest rejects invitation.
disconnect
End co-guest session.
Creating Instance
CoGuestStore.create
Create object instance
Observing State and Events
addHostListener
Add host-side event callback listener
abstract fun addHostListener(
    listener: HostListener?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
listener
HostListener?
Required
Listener.
removeHostListener
Remove host-side event callback listener
abstract fun removeHostListener(
    listener: HostListener?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
listener
HostListener?
Required
Listener.
addGuestListener
Add guest-side event callback listener
abstract fun addGuestListener(
    listener: GuestListener?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
listener
GuestListener?
Required
Listener.
removeGuestListener
Remove guest-side event callback listener
abstract fun removeGuestListener(
    listener: GuestListener?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
listener
GuestListener?
Required
Listener.
Guest Operations
applyForSeat
Apply to go on seat
abstract fun applyForSeat(
    seatIndex: Int,
    timeout: Int,
    extraInfo: String?,
    completion: CompletionHandler?
)
Request to join co-guest session as an audience member.

After calling this method, a co-guest request is sent to all hosts in the live room. The request will remain active until:
• Host accepts via acceptApplication
• Host rejects via rejectApplication
• Timeout expires
• You cancel via cancelApplication
Version
Supported since version 3.5.
Notes
Note: 
If no host responds within the timeout, {ref2} event with NoResponseReason.TIMEOUT will be triggered.
Parameters
Parameter
Type
Required
Description
seatIndex
Int
Required
Seat index, -1 means auto-assign seat.
timeout
Int
Required
Timeout (unit: seconds).
extraInfo
String?
Required
Extra information.
completion
CompletionHandler?
Required
Completion callback.
cancelApplication
Cancel seat application
abstract fun cancelApplication(
    completion: CompletionHandler?
)
Cancel a previously sent co-guest application. After calling this method, all hosts will be notified of the application cancellation.
Version
Supported since version 3.5.
Notes
Note: 
If the application has already been processed by a host, the cancellation may have no effect.
Parameters
Parameter
Type
Required
Description
completion
CompletionHandler?
Required
Completion callback.
acceptApplication
Accept seat application
abstract fun acceptApplication(
    userID: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
userID
String?
Required
User ID.
completion
CompletionHandler?
Required
Completion callback.
rejectApplication
Reject seat application
abstract fun rejectApplication(
    userID: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
userID
String?
Required
User ID.
completion
CompletionHandler?
Required
Completion callback.
Host Operations
inviteToSeat
Invite audience to seat
abstract fun inviteToSeat(
    inviteeID: String?,
    seatIndex: Int,
    timeout: Int,
    extraInfo: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
inviteeID
String?
Required
Invited user ID.
seatIndex
Int
Required
Seat index, -1 means auto-assign seat.
timeout
Int
Required
Timeout (unit: seconds).
extraInfo
String?
Required
Extra information.
completion
CompletionHandler?
Required
Completion callback.
cancelInvitation
Cancel seat invitation
abstract fun cancelInvitation(
    inviteeID: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
inviteeID
String?
Required
Invited user ID.
completion
CompletionHandler?
Required
Completion callback.
acceptInvitation
Accept seat invitation
abstract fun acceptInvitation(
    inviterID: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
inviterID
String?
Required
Inviter user ID.
completion
CompletionHandler?
Required
Completion callback.
rejectInvitation
Reject seat invitation
abstract fun rejectInvitation(
    inviterID: String?,
    completion: CompletionHandler?
)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
inviterID
String?
Required
Inviter user ID.
completion
CompletionHandler?
Required
Completion callback.
Connection Control
disconnect
End co-guest session
Data Structures
NoResponseReason
Reason for no response to co-guest invitation sent by host or co-guest request initiated by audience
Enum Value
Value
Description
TIMEOUT
0
Request timeout.
ALREADY_SEATED
1
User already on seat.
HostListener
Callback events received on host side
Methods
Method
Description
onGuestApplicationReceived
This callback is triggered when an audience applies for co-guest.
onGuestApplicationCancelled
This callback is triggered when an audience cancels co-guest application.
onGuestApplicationProcessedByOtherHost
This callback is triggered when an audience's co-guest application is processed by another host.
onHostInvitationResponded
This callback is triggered when a co-guest invitation sent by host receives a response from audience.
onHostInvitationNoResponse
This callback is triggered when a co-guest invitation sent by host receives no response.
GuestListener
Callback events received on guest side
Methods
Method
Description
onHostInvitationReceived
This callback is triggered when receiving a co-guest invitation from host.
onHostInvitationCancelled
This callback is triggered when host cancels co-guest invitation.
onGuestApplicationResponded
This callback is triggered when audience's co-guest application receives a response from host.
onGuestApplicationNoResponse
This callback is triggered when audience's co-guest application receives no response.
onKickedOffSeat
This callback is triggered when audience is kicked off seat by host.
CoGuestState
Co-guest related state data provided externally by CoGuestStore
Property
Type
Description
connected
StateFlow<List<SeatUserInfo>>
List of users already on seats.
invitees
StateFlow<List<LiveUserInfo>>
List of users invited by host.
applicants
StateFlow<List<LiveUserInfo>>
List of users who applied for co-guest received by host.
candidates
StateFlow<List<LiveUserInfo>>
List of candidate users for co-guest.
Usage Example
// Create store instance
val store = CoGuestStore.create("live_room_123")
﻿
// Subscribe to state changes
lifecycleScope.launch {
    store.coGuestState.connected.collect { connected ->
        println("Connected users: ${connected.size}")
    }
}
﻿
// Add host event listener (for hosts)
store.addHostListener(object : HostListener() {
    override fun onGuestApplicationReceived(guestUser: LiveUserInfo) {
        println("Received application from ${guestUser.userName}")
        // Show accept/reject UI
    }
    override fun onHostInvitationResponded(isAccept: Boolean, guestUser: LiveUserInfo) {
        println("Audience ${guestUser.userName} ${if (isAccept) "accepted" else "rejected"}")
    }
})
﻿
// Host: Accept application
store.acceptApplication("user_456") { code, message ->
    if (code == 0) {
        println("Application accepted successfully")
    }
}
﻿

Property	Type	Description
connected	StateFlow<List<SeatUserInfo>>	List of users already on seats.
invitees	StateFlow<List<LiveUserInfo>>	List of users invited by host.
applicants	StateFlow<List<LiveUserInfo>>	List of users who applied for co-guest received by host.
candidates	StateFlow<List<LiveUserInfo>>	List of candidate users for co-guest.

Function	Description
CoGuestStore.create	Create object instance.
addHostListener	Host-side event callbacks.
removeHostListener	Host-side event callbacks.
addGuestListener	Guest-side event callbacks.
removeGuestListener	Guest-side event callbacks.
applyForSeat	Guest applies for co-guest.
cancelApplication	Guest cancels application.
acceptApplication	Host accepts application.
rejectApplication	Host rejects application.
inviteToSeat	Host invites guest to co-guest.
cancelInvitation	Host cancels invitation.
acceptInvitation	Guest accepts invitation.
rejectInvitation	Guest rejects invitation.
disconnect	End co-guest session.

Parameter	Type	Required	Description
listener	HostListener?	Required	Listener.

Enum Value	Value	Description
TIMEOUT	0	Request timeout.
ALREADY_SEATED	1	User already on seat.

Method	Description
onGuestApplicationReceived	This callback is triggered when an audience applies for co-guest.
onGuestApplicationCancelled	This callback is triggered when an audience cancels co-guest application.
onGuestApplicationProcessedByOtherHost	This callback is triggered when an audience's co-guest application is processed by another host.
onHostInvitationResponded	This callback is triggered when a co-guest invitation sent by host receives a response from audience.
onHostInvitationNoResponse	This callback is triggered when a co-guest invitation sent by host receives no response.

Method	Description
onHostInvitationReceived	This callback is triggered when receiving a co-guest invitation from host.
onHostInvitationCancelled	This callback is triggered when host cancels co-guest invitation.
onGuestApplicationResponded	This callback is triggered when audience's co-guest application receives a response from host.
onGuestApplicationNoResponse	This callback is triggered when audience's co-guest application receives no response.
onKickedOffSeat	This callback is triggered when audience is kicked off seat by host.