PlayFab Bridge

public class PlayerDataUpdateService : NetworkBehaviour
{
    [SerializeField] private string ServerPortName = "game"; // must match your PlayFlow port config name

    private PlayfabRestApiService _playfab;

    public override void OnStartServer()
    {
        _playfab = FindObjectOfType<PlayfabRestApiService>();

        string matchId      = Environment.GetEnvironmentVariable("PLAYFAB_MATCH_ID");
        string titleSecret  = Environment.GetEnvironmentVariable("PLAYFAB_TITLE_SECRET");
        string[] playerIds  = Environment.GetEnvironmentVariable("PLAYFAB_MATCH_PLAYERS_ID_LIST")?.Split(',');
        string portsJson    = Environment.GetEnvironmentVariable("PLAYFLOW_PORTS");

        if (string.IsNullOrEmpty(portsJson))
        {
            Debug.LogError("PLAYFLOW_PORTS not set — is this running on PlayFlow?");
            return;
        }

        // PLAYFLOW_PORTS is a JSON array; find the port config by name.
        PlayFlowPort[] ports = JsonConvert.DeserializeObject<PlayFlowPort[]>(portsJson);
        PlayFlowPort game = Array.Find(ports, p => p.name == ServerPortName);
        if (game == null)
        {
            Debug.LogError($"No PlayFlow port named '{ServerPortName}'");
            return;
        }

        string connection = $"{game.host}:{game.external_port}";

        foreach (string playerId in playerIds)
        {
            if (!string.IsNullOrEmpty(playerId))
                _playfab.UpdatePlayerData(titleSecret, playerId, matchId, connection);
        }
    }

    [Serializable]
    private class PlayFlowPort
    {
        public string name;
        public int external_port;
        public string host;
        public string protocol;
        public bool tls_enabled;
    }
}

public async void UpdatePlayerData(string secretKey, string playerId, string key, string value)
{
    if (!_http.DefaultRequestHeaders.Contains("X-SecretKey"))
        _http.DefaultRequestHeaders.Add("X-SecretKey", secretKey);

    var data = new JObject { [key] = value };
    var body = new JObject { ["PlayFabId"] = playerId, ["Data"] = data };

    var content  = new StringContent(body.ToString(), Encoding.UTF8, "application/json");
    var response = await _http.PostAsync($"https://{TitleID}.playfabapi.com/Server/UpdateUserData", content);

    if (!response.IsSuccessStatusCode)
        Debug.Log($"Could not update Player Data for {playerId}: {(int)response.StatusCode}");
}

private async void StartConnectionAttempt()
{
    var body = new JObject { ["Keys"] = new JArray { _matchId } };
    var content = new StringContent(body.ToString(), Encoding.UTF8, "application/json");

    while (true)
    {
        var res  = await _http.PostAsync($"https://{TitleID}.playfabapi.com/Client/GetUserData", content);
        var json = JObject.Parse(await res.Content.ReadAsStringAsync());
        var data = json["data"]?["Data"];

        var entry = data?[_matchId]?["Value"]?.ToString();
        if (!string.IsNullOrEmpty(entry))
        {
            string address = entry.Split(':')[0];
            if (ushort.TryParse(entry.Split(':')[1], out ushort port))
            {
                InstanceFinder.TransportManager.Transport.SetClientAddress(address);
                InstanceFinder.TransportManager.Transport.SetPort(port);
                InstanceFinder.ClientManager.StartConnection();
            }
            return;
        }

        await Task.Delay(3000); // server not ready yet — retry
    }
}