The PlayFlow SDK provides a comprehensive suite of tools for managing multiplayer lobbies, primarily through the PlayFlowLobbyManagerV2 component.

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PlayFlowLobbyManagerV2

This is a high-level manager that you add to your scene. It handles session management, state synchronization, and provides a clean API for all lobby operations.

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Initialization

Before using the manager, you must initialize it with a unique ID for the current player. This is typically done once when your game starts. 
using PlayFlow;
using System;

public class MyGameManager : MonoBehaviour
{
    void Start()
    {
        // It's a good practice to generate a unique ID for each player
        string playerId = "player-" + Guid.NewGuid().ToString("N").Substring(0, 8);

        // Initialize the manager
        PlayFlowLobbyManagerV2.Instance.Initialize(playerId, OnManagerReady);
    }

    void OnManagerReady()
    {
        Debug.Log("PlayFlow Lobby Manager is ready!");
        // You can now safely call other lobby methods
    }
}

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Creating a Lobby

Creating a lobby is simple. You can specify a name, max players, and whether it’s private. 
public void CreateMyLobby()
{
    PlayFlowLobbyManagerV2.Instance.CreateLobby(
        name: "My Awesome Game", 
        maxPlayers: 8, 
        isPrivate: false,
        onSuccess: (lobby) => {
            Debug.Log($"Successfully created lobby: {lobby.name} (ID: {lobby.id})");
            if (lobby.isPrivate)
            {
                Debug.Log($"Invite code: {lobby.inviteCode}");
            }
        },
        onError: (error) => {
            Debug.LogError($"Failed to create lobby: {error}");
        }
    );
}

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Finding and Joining Lobbies

You can get a list of available public lobbies and then join one by its ID. 
public void JoinFirstAvailableLobby()
{
    PlayFlowLobbyManagerV2.Instance.GetAvailableLobbies(
        onSuccess: (lobbies) => {
            var availableLobby = lobbies.Find(l => !l.isPrivate && l.currentPlayers < l.maxPlayers);
            
            if (availableLobby != null)
            {
                PlayFlowLobbyManagerV2.Instance.JoinLobby(availableLobby.id,
                    onSuccess: (lobby) => {
                        Debug.Log($"Successfully joined lobby: {lobby.name}");
                    },
                    onError: (error) => {
                        Debug.LogError($"Failed to join lobby: {error}");
                    }
                );
            }
            else
            {
                Debug.LogWarning("No available public lobbies found.");
            }
        },
        onError: (error) => {
            Debug.LogError($"Failed to get lobbies: {error}");
        }
    );
}
To join a private lobby, use JoinLobbyByCode(code, ...).

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Handling Events

The SDK uses UnityEvents to notify your game of changes. You can subscribe to these to update your UI or game state. 
void SubscribeToEvents()
{
    var events = PlayFlowLobbyManagerV2.Instance.Events;
    
    // Fired when the local player joins a lobby
    events.OnLobbyJoined.AddListener(OnLobbyJoined);
    
    // Fired when another player joins the lobby
    events.OnPlayerJoined.AddListener(OnPlayerJoined);
    
    // Fired when the lobby data is updated
    events.OnLobbyUpdated.AddListener(OnLobbyUpdated);
}

void OnLobbyJoined(Lobby lobby)
{
    Debug.Log($"Joined lobby: {lobby.name}");
}

void OnPlayerJoined(PlayerAction action)
{
    Debug.Log($"Player {action.PlayerId} joined the lobby!");
}

void OnLobbyUpdated(Lobby lobby)
{
    Debug.Log("Lobby was updated.");
    // Re-draw your UI here
}