diff --git a/src/Firebase_ESP_Client.cpp b/src/Firebase_ESP_Client.cpp
deleted file mode 100644
index 9443e4213..000000000
--- a/src/Firebase_ESP_Client.cpp
+++ /dev/null
@@ -1,252 +0,0 @@
-/**
- * Google's Firebase ESP Client Main class, Firebase_ESP_Client.cpp v2.3.7
- *
- * This library supports Espressif ESP8266 and ESP32
- *
- * Created July 4, 2021
- *
- * This work is a part of Firebase ESP Client library
- * Copyright (c) 2021 K. Suwatchai (Mobizt)
- *
- * The MIT License (MIT)
- * Copyright (c) 2021 K. Suwatchai (Mobizt)
- *
- *
- * Permission is hereby granted, free of charge, to any person returning a copy
- * of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
- * of
- * the Software, and to permit persons to whom the Software is furnished to do
- * so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef FIREBASE_ESP_CLIENT_CPP
-#define FIREBASE_ESP_CLIENT_CPP
-
-#include "Firebase_ESP_Client.h"
-
-Firebase_ESP_Client::Firebase_ESP_Client() {}
-
-Firebase_ESP_Client::~Firebase_ESP_Client()
-{
-  if (ut)
-    delete ut;
-
-  if (auth)
-    delete auth;
-
-  if (cfg)
-    delete cfg;
-}
-
-void Firebase_ESP_Client::begin(FirebaseConfig *config, FirebaseAuth *auth)
-{
-  init(config, auth);
-
-  if (cfg->service_account.json.path.length() > 0)
-  {
-    if (!Signer.parseSAFile())
-      cfg->signer.tokens.status = token_status_uninitialized;
-  }
-
-  if (cfg->signer.tokens.legacy_token.length() > 0)
-    Signer.setTokenType(token_type_legacy_token);
-  else if (Signer.tokenSigninDataReady())
-  {
-    if (auth->token.uid.length() == 0)
-      Signer.setTokenType(token_type_oauth2_access_token);
-    else
-      Signer.setTokenType(token_type_custom_token);
-  }
-  else if (Signer.userSigninDataReady())
-    Signer.setTokenType(token_type_id_token);
-
-  struct fb_esp_url_info_t uinfo;
-  cfg->_int.fb_auth_uri = cfg->signer.tokens.token_type == token_type_legacy_token || cfg->signer.tokens.token_type == token_type_id_token;
-
-  if (cfg->host.length() > 0)
-    cfg->database_url = cfg->host;
-
-  if (cfg->database_url.length() > 0)
-  {
-    ut->getUrlInfo(cfg->database_url.c_str(), uinfo);
-    cfg->database_url = uinfo.host;
-  }
-
-  if (strlen_P(cfg->cert.data))
-    cfg->_int.fb_caCert = cfg->cert.data;
-
-  if (cfg->cert.file.length() > 0)
-  {
-    if (cfg->cert.file_storage == mem_storage_type_sd && !cfg->_int.fb_sd_rdy)
-      cfg->_int.fb_sd_rdy = ut->sdTest(cfg->_int.fb_file);
-    else if ((cfg->cert.file_storage == mem_storage_type_flash) && !cfg->_int.fb_flash_rdy)
-      ut->flashTest();
-  }
-
-  Signer.handleToken();
-}
-
-struct token_info_t Firebase_ESP_Client::authTokenInfo()
-{
-  return Signer.tokenInfo;
-}
-
-bool Firebase_ESP_Client::ready()
-{
-  return Signer.tokenReady();
-}
-
-bool Firebase_ESP_Client::authenticated()
-{
-  return Signer.authenticated;
-}
-
-void Firebase_ESP_Client::init(FirebaseConfig *config, FirebaseAuth *auth)
-{
-  this->auth = auth;
-  cfg = config;
-
-  if (!cfg)
-    cfg = new FirebaseConfig();
-
-  if (!this->auth)
-    this->auth = new FirebaseAuth();
-
-  if (ut)
-    delete ut;
-
-  ut = new UtilsClass(config);
-
-#ifdef ENABLE_RTDB
-  RTDB.begin(ut);
-#endif
-#ifdef ENABLE_FCM
-  FCM.begin(ut);
-#endif
-#ifdef ENABLE_FB_STORAGE
-  Storage.begin(ut);
-#endif
-#ifdef ENABLE_FIRESTORE
-  Firestore.begin(ut);
-#endif
-#ifdef ENABLE_FB_FUNCTIONS
-  Functions.begin(ut);
-#endif
-#ifdef ENABLE_GC_STORAGE
-  GCStorage.begin(ut);
-#endif
-
-  cfg->_int.fb_reconnect_wifi = WiFi.getAutoReconnect();
-
-  cfg->signer.signup = false;
-  Signer.begin(ut, cfg, auth);
-  ut->clearS(cfg->signer.tokens.error.message);
-}
-
-bool Firebase_ESP_Client::signUp(FirebaseConfig *config, FirebaseAuth *auth, const char *email, const char *password)
-{
-  init(config, auth);
-
-  return Signer.getIdToken(true, email, password);
-}
-
-bool Firebase_ESP_Client::sendEmailVerification(FirebaseConfig *config, const char *idToken)
-{
-  init(config, nullptr);
-  return Signer.handleEmailSending(idToken, fb_esp_user_email_sending_type_verify);
-}
-
-bool Firebase_ESP_Client::sendResetPassword(FirebaseConfig *config, const char *email)
-{
-  init(config, nullptr);
-  return Signer.handleEmailSending(email, fb_esp_user_email_sending_type_reset_psw);
-}
-
-void Firebase_ESP_Client::reconnectWiFi(bool reconnect)
-{
-  WiFi.setAutoReconnect(reconnect);
-}
-
-void Firebase_ESP_Client::setFloatDigits(uint8_t digits)
-{
-  if (digits < 7)
-    cfg->_int.fb_float_digits = digits;
-}
-
-void Firebase_ESP_Client::setDoubleDigits(uint8_t digits)
-{
-  if (digits < 9)
-    cfg->_int.fb_double_digits = digits;
-}
-
-bool Firebase_ESP_Client::sdBegin(int8_t ss, int8_t sck, int8_t miso, int8_t mosi)
-{
-  if (Signer.getCfg())
-  {
-    Signer.getCfg()->_int.sd_config.sck = sck;
-    Signer.getCfg()->_int.sd_config.miso = miso;
-    Signer.getCfg()->_int.sd_config.mosi = mosi;
-    Signer.getCfg()->_int.sd_config.ss = ss;
-  }
-#if defined(ESP32)
-  if (ss > -1)
-  {
-    SPI.begin(sck, miso, mosi, ss);
-#if defined(CARD_TYPE_SD)
-    return SD_FS.begin(ss, SPI);
-#endif
-    return false;
-  }
-  else
-    return SD_FS.begin();
-#elif defined(ESP8266)
-  if (ss > -1)
-    return SD_FS.begin(ss);
-  else
-    return SD_FS.begin(SD_CS_PIN);
-#endif
-  return false;
-}
-
-bool Firebase_ESP_Client::sdMMCBegin(const char *mountpoint, bool mode1bit, bool format_if_mount_failed)
-{
-#if defined(ESP32)
-#if defined(CARD_TYPE_SD_MMC)
-  if (Signer.getCfg())
-  {
-    Signer.getCfg()->_int.sd_config.sd_mmc_mountpoint = mountpoint;
-    Signer.getCfg()->_int.sd_config.sd_mmc_mode1bit = mode1bit;
-    Signer.getCfg()->_int.sd_config.sd_mmc_format_if_mount_failed = format_if_mount_failed;
-  }
-  return SD_FS.begin(mountpoint, mode1bit, format_if_mount_failed);
-#endif
-#endif
-  return false;
-}
-
-bool Firebase_ESP_Client::setSystemTime(time_t ts)
-{
-  return ut->setTimestamp(ts) == 0;
-}
-
-Firebase_ESP_Client Firebase = Firebase_ESP_Client();
-
-#endif
\ No newline at end of file