issuse about firebase-esp8266 HOT 14 CLOSED

fbdo.setBSSLBufferSize(12000/* Rx buffer size in bytes from 512 - 16384 */, 512 /* Tx buffer size in bytes from 512 - 16384 */);

#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <FirebaseESP8266.h>

#include <addons/TokenHelper.h>
#include <addons/RTDBHelper.h>

#define WIFI_SSID "WIFI_AP"
#define WIFI_PASSWORD "WIFI_PASSWORD"

#define API_KEY "API_KEY"

#define DATABASE_URL "URL"

#define USER_EMAIL "USER_EMAIL"
#define USER_PASSWORD "USER_PASSWORD"

FirebaseData fbdo;

FirebaseAuth auth;
FirebaseConfig config;

bool taskCompleted;

void setup()
{

  Serial.begin(115200);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);

  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();
  Serial.printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);

  config.api_key = API_KEY;
  auth.user.email = USER_EMAIL;
  auth.user.password = USER_PASSWORD;
  config.database_url = DATABASE_URL;

  config.token_status_callback = tokenStatusCallback;

  Firebase.begin(&config, &auth);

  Firebase.reconnectWiFi(true);

  fbdo.setBSSLBufferSize(12000, 512);
}

// The Firebase download callback function
void rtdbDownloadCallback(RTDB_DownloadStatusInfo info)
{
  if (info.status == fb_esp_rtdb_download_status_init)
  {
    Serial.printf("Downloading file %s (%d) to %s\n", info.remotePath.c_str(), info.size, info.localFileName.c_str());
  }
  else if (info.status == fb_esp_rtdb_download_status_download)
  {
    Serial.printf("Downloaded %d%s\n", (int)info.progress, "%");
  }
  else if (info.status == fb_esp_rtdb_download_status_complete)
  {
    Serial.println("Backup completed\n");
  }
  else if (info.status == fb_esp_rtdb_download_status_error)
  {
    Serial.printf("Download failed, %s\n", info.errorMsg.c_str());
  }
}

// The Firebase upload callback function
void rtdbUploadCallback(RTDB_UploadStatusInfo info)
{
  if (info.status == fb_esp_rtdb_upload_status_init)
  {
    Serial.printf("Uploading file %s (%d) to %s\n", info.localFileName.c_str(), info.size, info.remotePath.c_str());
  }
  else if (info.status == fb_esp_rtdb_upload_status_upload)
  {
    Serial.printf("Uploaded %d%s\n", (int)info.progress, "%");
  }
  else if (info.status == fb_esp_rtdb_upload_status_complete)
  {
    Serial.println("Restore completed\n");
  }
  else if (info.status == fb_esp_rtdb_upload_status_error)
  {
    Serial.printf("Upload failed, %s\n", info.errorMsg.c_str());
  }
}

void loop()
{

  if (Firebase.ready() && !taskCompleted)
  {
    taskCompleted = true;

    FirebaseJson data;

    // Prepare node data to test
    Serial.println("\nPrepare data... ");

    // Warning memory allocation error can be occurred
    for (int i = 0; i < 8; i++)
    {
      data.set("/data/group" + String(i) + "/a", "________________________________________________________");
      data.set("/data/group" + String(i) + "/b", "________________________________________________________");
      data.set("/data/group" + String(i) + "/b", "________________________________________________________");
      data.set("/data/group" + String(i) + "/c", "________________________________________________________");
      data.set("/data/group" + String(i) + "/d", "________________________________________________________");
      data.set("/data/group" + String(i) + "/e", "________________________________________________________");
      data.set("/data/group" + String(i) + "/f", "________________________________________________________");
      data.set("/data/group" + String(i) + "/g", "________________________________________________________");
      data.set("/data/group" + String(i) + "/h", "________________________________________________________");
      data.set("/data/group" + String(i) + "/i", "________________________________________________________");
      data.set("/data/group" + String(i) + "/j", "________________________________________________________");
      data.set("/data/group" + String(i) + "/k", "________________________________________________________");
      data.set("/data/group" + String(i) + "/l", "________________________________________________________");
      data.set("/data/group" + String(i) + "/m", "________________________________________________________");
    }

    Serial.println("\nSet data... ");
    if (!Firebase.setJSON(fbdo, "/test_backup", data))
      Serial.println(fbdo.errorReason());

    Serial.println("\nBackup test...\n");
    if (Firebase.backup(fbdo, StorageType::FLASH, "/test_backup", "/test.json", rtdbDownloadCallback))
    {
      Serial.printf("backup file, %s\n", fbdo.getBackupFilename().c_str());
      Serial.printf("file size, %d\n", fbdo.getBackupFileSize());
    }
    else
      Serial.println(fbdo.fileTransferError().c_str());

    Serial.println("\nRestore test... \n");

    if (!Firebase.restore(fbdo, StorageType::FLASH, "/test_backup", "/test.json", rtdbUploadCallback))
      Serial.println(fbdo.fileTransferError().c_str());
  }
}

fbdo.pauseFirebase(false);
stream.pauseFirebase(false);
Firebase.setStreamCallback(stream, streamCallback, streamTimeoutCallback);