From b62586f1b828df9b154d1dafe7ff5c6c29e66f1a Mon Sep 17 00:00:00 2001
From: cc <57077778+cryptochassis@users.noreply.github.com>
Date: Wed, 25 Mar 2026 22:32:12 -0700
Subject: [PATCH] Change header guard to use pragma once

---
 include/ccapi_cpp/ccapi_element.h                           | 5 ++---
 include/ccapi_cpp/ccapi_event.h                             | 5 ++---
 include/ccapi_cpp/ccapi_event_dispatcher.h                  | 5 ++---
 include/ccapi_cpp/ccapi_event_handler.h                     | 5 ++---
 include/ccapi_cpp/ccapi_fix_connection.h                    | 5 ++---
 include/ccapi_cpp/ccapi_hmac.h                              | 4 +---
 include/ccapi_cpp/ccapi_http_connection.h                   | 5 ++---
 include/ccapi_cpp/ccapi_http_retry.h                        | 5 ++---
 include/ccapi_cpp/ccapi_inflate_stream.h                    | 5 ++---
 include/ccapi_cpp/ccapi_jwt.h                               | 5 ++---
 include/ccapi_cpp/ccapi_logger.h                            | 5 ++---
 include/ccapi_cpp/ccapi_macro.h                             | 6 +-----
 include/ccapi_cpp/ccapi_market_data_message.h               | 5 ++---
 include/ccapi_cpp/ccapi_message.h                           | 5 ++---
 include/ccapi_cpp/ccapi_queue.h                             | 5 ++---
 include/ccapi_cpp/ccapi_request.h                           | 5 ++---
 include/ccapi_cpp/ccapi_session.h                           | 5 ++---
 include/ccapi_cpp/ccapi_session_configs.h                   | 5 ++---
 include/ccapi_cpp/ccapi_session_options.h                   | 5 ++---
 include/ccapi_cpp/ccapi_subscription.h                      | 5 ++---
 include/ccapi_cpp/ccapi_url.h                               | 5 ++---
 include/ccapi_cpp/ccapi_util.h                              | 5 ++---
 include/ccapi_cpp/ccapi_util_private.h                      | 5 ++---
 include/ccapi_cpp/ccapi_ws_connection.h                     | 5 +----
 .../ccapi_cpp/service/ccapi_execution_management_service.h  | 5 ++---
 .../service/ccapi_execution_management_service_ascendex.h   | 5 ++---
 .../service/ccapi_execution_management_service_binance.h    | 5 ++---
 .../ccapi_execution_management_service_binance_base.h       | 5 ++---
 ...capi_execution_management_service_binance_coin_futures.h | 5 ++---
 ..._execution_management_service_binance_derivatives_base.h | 5 ++---
 .../service/ccapi_execution_management_service_binance_us.h | 5 ++---
 ...capi_execution_management_service_binance_usds_futures.h | 5 ++---
 .../service/ccapi_execution_management_service_bitfinex.h   | 5 ++---
 .../service/ccapi_execution_management_service_bitget.h     | 5 ++---
 .../ccapi_execution_management_service_bitget_base.h        | 5 ++---
 .../ccapi_execution_management_service_bitget_futures.h     | 5 ++---
 .../service/ccapi_execution_management_service_bitmart.h    | 5 ++---
 .../service/ccapi_execution_management_service_bitmex.h     | 5 ++---
 .../service/ccapi_execution_management_service_bitstamp.h   | 4 +---
 .../service/ccapi_execution_management_service_bybit.h      | 5 ++---
 .../service/ccapi_execution_management_service_coinbase.h   | 5 ++---
 .../service/ccapi_execution_management_service_cryptocom.h  | 5 ++---
 .../service/ccapi_execution_management_service_deribit.h    | 5 ++---
 .../service/ccapi_execution_management_service_erisx.h      | 5 ++---
 .../service/ccapi_execution_management_service_ftx.h        | 5 ++---
 .../service/ccapi_execution_management_service_ftx_base.h   | 5 ++---
 .../service/ccapi_execution_management_service_ftx_us.h     | 5 ++---
 .../service/ccapi_execution_management_service_gateio.h     | 5 ++---
 .../ccapi_execution_management_service_gateio_base.h        | 5 ++---
 ..._execution_management_service_gateio_perpetual_futures.h | 5 ++---
 .../service/ccapi_execution_management_service_gemini.h     | 5 ++---
 .../service/ccapi_execution_management_service_huobi.h      | 5 ++---
 .../service/ccapi_execution_management_service_huobi_base.h | 5 ++---
 .../ccapi_execution_management_service_huobi_coin_swap.h    | 5 ++---
 ...pi_execution_management_service_huobi_derivatives_base.h | 5 ++---
 .../ccapi_execution_management_service_huobi_usdt_swap.h    | 5 ++---
 .../service/ccapi_execution_management_service_kraken.h     | 5 ++---
 .../ccapi_execution_management_service_kraken_futures.h     | 5 ++---
 .../service/ccapi_execution_management_service_kucoin.h     | 5 ++---
 .../ccapi_execution_management_service_kucoin_base.h        | 5 ++---
 .../ccapi_execution_management_service_kucoin_futures.h     | 5 ++---
 .../service/ccapi_execution_management_service_mexc.h       | 5 ++---
 .../ccapi_execution_management_service_mexc_futures.h       | 5 ++---
 .../service/ccapi_execution_management_service_okx.h        | 5 ++---
 .../service/ccapi_execution_management_service_whitebit.h   | 1 +
 include/ccapi_cpp/service/ccapi_fix_service.h               | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_binance.h       | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_coinbase.h      | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_ftx.h           | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_ftx_base.h      | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_ftx_us.h        | 5 ++---
 include/ccapi_cpp/service/ccapi_fix_service_gemini.h        | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service.h       | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_ascendex.h  | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_binance.h   | 5 ++---
 .../service/ccapi_market_data_service_binance_base.h        | 5 ++---
 .../ccapi_market_data_service_binance_coin_futures.h        | 5 ++---
 .../ccapi_market_data_service_binance_derivatives_base.h    | 5 ++---
 .../service/ccapi_market_data_service_binance_us.h          | 5 ++---
 .../ccapi_market_data_service_binance_usds_futures.h        | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_bitfinex.h  | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_bitget.h    | 5 ++---
 .../service/ccapi_market_data_service_bitget_base.h         | 5 ++---
 .../service/ccapi_market_data_service_bitget_futures.h      | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_bitmart.h   | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_bitmex.h    | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_bitstamp.h  | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_bybit.h | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_coinbase.h  | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_cryptocom.h | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_deribit.h   | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_erisx.h | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_ftx.h   | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_ftx_base.h  | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_ftx_us.h    | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_gateio.h    | 5 ++---
 .../service/ccapi_market_data_service_gateio_base.h         | 5 ++---
 .../ccapi_market_data_service_gateio_perpetual_futures.h    | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_gemini.h    | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_huobi.h | 5 ++---
 .../service/ccapi_market_data_service_huobi_base.h          | 5 ++---
 .../service/ccapi_market_data_service_huobi_coin_swap.h     | 5 ++---
 .../ccapi_market_data_service_huobi_derivatives_base.h      | 5 ++---
 .../service/ccapi_market_data_service_huobi_usdt_swap.h     | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_kraken.h    | 5 ++---
 .../service/ccapi_market_data_service_kraken_futures.h      | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_kucoin.h    | 5 ++---
 .../service/ccapi_market_data_service_kucoin_base.h         | 5 ++---
 .../service/ccapi_market_data_service_kucoin_futures.h      | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_mexc.h  | 5 ++---
 .../service/ccapi_market_data_service_mexc_futures.h        | 5 ++---
 include/ccapi_cpp/service/ccapi_market_data_service_okx.h   | 5 ++---
 .../ccapi_cpp/service/ccapi_market_data_service_whitebit.h  | 5 ++---
 include/ccapi_cpp/service/ccapi_service.h                   | 4 +---
 include/ccapi_cpp/service/ccapi_service_context.h           | 5 +----
 115 files changed, 223 insertions(+), 346 deletions(-)

diff --git a/include/ccapi_cpp/ccapi_element.h b/include/ccapi_cpp/ccapi_element.h
index 9fb90c6c0..7f74c4b02 100644
--- a/include/ccapi_cpp/ccapi_element.h
+++ b/include/ccapi_cpp/ccapi_element.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_ELEMENT_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_ELEMENT_H_
+#pragma once
+
 #include <map>
 #include <string>
 
@@ -125,4 +125,3 @@ class Element {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_ELEMENT_H_
diff --git a/include/ccapi_cpp/ccapi_event.h b/include/ccapi_cpp/ccapi_event.h
index 745093e67..0bd6edeb3 100644
--- a/include/ccapi_cpp/ccapi_event.h
+++ b/include/ccapi_cpp/ccapi_event.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_EVENT_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_EVENT_H_
+#pragma once
+
 #include <vector>
 
 #include "ccapi_cpp/ccapi_logger.h"
@@ -115,4 +115,3 @@ class Event {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_EVENT_H_
diff --git a/include/ccapi_cpp/ccapi_event_dispatcher.h b/include/ccapi_cpp/ccapi_event_dispatcher.h
index 5d21395b3..de4635ffc 100644
--- a/include/ccapi_cpp/ccapi_event_dispatcher.h
+++ b/include/ccapi_cpp/ccapi_event_dispatcher.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_EVENT_DISPATCHER_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_EVENT_DISPATCHER_H_
+#pragma once
+
 #include <stddef.h>
 
 #include <atomic>
@@ -104,4 +104,3 @@ class EventDispatcher {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_EVENT_DISPATCHER_H_
diff --git a/include/ccapi_cpp/ccapi_event_handler.h b/include/ccapi_cpp/ccapi_event_handler.h
index 0abacc1a3..f1af77b72 100644
--- a/include/ccapi_cpp/ccapi_event_handler.h
+++ b/include/ccapi_cpp/ccapi_event_handler.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_EVENT_HANDLER_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_EVENT_HANDLER_H_
+#pragma once
+
 #include "ccapi_cpp/ccapi_event.h"
 
 namespace ccapi {
@@ -27,4 +27,3 @@ class EventHandler {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_EVENT_HANDLER_H_
diff --git a/include/ccapi_cpp/ccapi_fix_connection.h b/include/ccapi_cpp/ccapi_fix_connection.h
index ca6e7e03f..e3726ed5e 100644
--- a/include/ccapi_cpp/ccapi_fix_connection.h
+++ b/include/ccapi_cpp/ccapi_fix_connection.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_FIX_CONNECTION_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_FIX_CONNECTION_H_
+#pragma once
+
 #include <string>
 #include <variant>
 
@@ -125,4 +125,3 @@ class FixConnection {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_FIX_CONNECTION_H_
diff --git a/include/ccapi_cpp/ccapi_hmac.h b/include/ccapi_cpp/ccapi_hmac.h
index edd1544e9..038258571 100644
--- a/include/ccapi_cpp/ccapi_hmac.h
+++ b/include/ccapi_cpp/ccapi_hmac.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_HMAC_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_HMAC_H_
+#pragma once
 
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
@@ -70,4 +69,3 @@ class Hmac {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_HMAC_H_
diff --git a/include/ccapi_cpp/ccapi_http_connection.h b/include/ccapi_cpp/ccapi_http_connection.h
index ffc395f13..af836a2ce 100644
--- a/include/ccapi_cpp/ccapi_http_connection.h
+++ b/include/ccapi_cpp/ccapi_http_connection.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_HTTP_CONNECTION_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_HTTP_CONNECTION_H_
+#pragma once
+
 #include <string>
 
 #include "ccapi_cpp/ccapi_logger.h"
@@ -37,4 +37,3 @@ class HttpConnection {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_HTTP_CONNECTION_H_
diff --git a/include/ccapi_cpp/ccapi_http_retry.h b/include/ccapi_cpp/ccapi_http_retry.h
index 92d9d84f8..40d446aec 100644
--- a/include/ccapi_cpp/ccapi_http_retry.h
+++ b/include/ccapi_cpp/ccapi_http_retry.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_HTTP_RETRY_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_HTTP_RETRY_H_
+#pragma once
+
 #include <future>
 #include <string>
 
@@ -28,4 +28,3 @@ class HttpRetry {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_HTTP_RETRY_H_
diff --git a/include/ccapi_cpp/ccapi_inflate_stream.h b/include/ccapi_cpp/ccapi_inflate_stream.h
index 80d646eb6..ae967b4d5 100644
--- a/include/ccapi_cpp/ccapi_inflate_stream.h
+++ b/include/ccapi_cpp/ccapi_inflate_stream.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_INFLATE_STREAM_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_INFLATE_STREAM_H_
+#pragma once
+
 #ifndef CCAPI_DECOMPRESS_BUFFER_SIZE
 #define CCAPI_DECOMPRESS_BUFFER_SIZE (1 << 20)
 #endif
@@ -100,4 +100,3 @@ class InflateStream {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_INFLATE_STREAM_H_
diff --git a/include/ccapi_cpp/ccapi_jwt.h b/include/ccapi_cpp/ccapi_jwt.h
index e45c5e392..b673563f7 100644
--- a/include/ccapi_cpp/ccapi_jwt.h
+++ b/include/ccapi_cpp/ccapi_jwt.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_JWT_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_JWT_H_
+#pragma once
+
 #include "ccapi_cpp/ccapi_hmac.h"
 #include "ccapi_cpp/ccapi_logger.h"
 #include "ccapi_cpp/ccapi_macro.h"
@@ -30,4 +30,3 @@ class Jwt {
   }
 };
 }  // namespace ccapi
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_JWT_H_
diff --git a/include/ccapi_cpp/ccapi_logger.h b/include/ccapi_cpp/ccapi_logger.h
index afe7ac965..ede6d308a 100644
--- a/include/ccapi_cpp/ccapi_logger.h
+++ b/include/ccapi_cpp/ccapi_logger.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_LOGGER_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_LOGGER_H_
+#pragma once
+
 #ifdef _WIN32
 #define CCAPI_LOGGER_FILE_SEPARATOR '\\'
 #else
@@ -168,4 +168,3 @@ class Logger {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_LOGGER_H_
diff --git a/include/ccapi_cpp/ccapi_macro.h b/include/ccapi_cpp/ccapi_macro.h
index 39bbe9c23..d50df7ced 100644
--- a/include/ccapi_cpp/ccapi_macro.h
+++ b/include/ccapi_cpp/ccapi_macro.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_MACRO_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_MACRO_H_
+#pragma once
 
 #ifndef CCAPI_PRINT_DOUBLE_PRECISION_DEFAULT
 #define CCAPI_PRINT_DOUBLE_PRECISION_DEFAULT 10
@@ -1738,6 +1737,3 @@
 #ifndef CCAPI_EM_CLIENT_ORDER_ID_SEQUENCE_NUMBER_PAD_TO_LENGTH
 #define CCAPI_EM_CLIENT_ORDER_ID_SEQUENCE_NUMBER_PAD_TO_LENGTH 3
 #endif
-
-#endif
-// INCLUDE_CCAPI_CPP_CCAPI_MACRO_H_
diff --git a/include/ccapi_cpp/ccapi_market_data_message.h b/include/ccapi_cpp/ccapi_market_data_message.h
index 1bcc7d3e4..0c396c14f 100644
--- a/include/ccapi_cpp/ccapi_market_data_message.h
+++ b/include/ccapi_cpp/ccapi_market_data_message.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_MARKET_DATA_MESSAGE_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_MARKET_DATA_MESSAGE_H_
+#pragma once
+
 #include "ccapi_cpp/ccapi_logger.h"
 #include "ccapi_cpp/ccapi_util_private.h"
 
@@ -268,4 +268,3 @@ class MarketDataMessage {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_MARKET_DATA_MESSAGE_H_
diff --git a/include/ccapi_cpp/ccapi_message.h b/include/ccapi_cpp/ccapi_message.h
index 8fe1a0580..8826c74a4 100644
--- a/include/ccapi_cpp/ccapi_message.h
+++ b/include/ccapi_cpp/ccapi_message.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_MESSAGE_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_MESSAGE_H_
+#pragma once
+
 #include <chrono>
 #include <vector>
 
@@ -315,4 +315,3 @@ class Message {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_MESSAGE_H_
diff --git a/include/ccapi_cpp/ccapi_queue.h b/include/ccapi_cpp/ccapi_queue.h
index 31f5fc2b6..d73ae3e4c 100644
--- a/include/ccapi_cpp/ccapi_queue.h
+++ b/include/ccapi_cpp/ccapi_queue.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_QUEUE_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_QUEUE_H_
+#pragma once
+
 #include <mutex>
 #include <vector>
 
@@ -87,4 +87,3 @@ class Queue {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_QUEUE_H_
diff --git a/include/ccapi_cpp/ccapi_request.h b/include/ccapi_cpp/ccapi_request.h
index 5e23b9796..0c3c22248 100644
--- a/include/ccapi_cpp/ccapi_request.h
+++ b/include/ccapi_cpp/ccapi_request.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_REQUEST_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_REQUEST_H_
+#pragma once
+
 #include <condition_variable>
 #include <map>
 #include <mutex>
@@ -318,4 +318,3 @@ class Request {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_REQUEST_H_
diff --git a/include/ccapi_cpp/ccapi_session.h b/include/ccapi_cpp/ccapi_session.h
index 4a92368c1..bef7e9f83 100644
--- a/include/ccapi_cpp/ccapi_session.h
+++ b/include/ccapi_cpp/ccapi_session.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_SESSION_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_SESSION_H_
+#pragma once
+
 #include "ccapi_cpp/ccapi_macro.h"
 
 // start: enable exchanges for market data
@@ -1038,4 +1038,3 @@ class Session {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_SESSION_H_
diff --git a/include/ccapi_cpp/ccapi_session_configs.h b/include/ccapi_cpp/ccapi_session_configs.h
index 737d5675c..4123bde8b 100644
--- a/include/ccapi_cpp/ccapi_session_configs.h
+++ b/include/ccapi_cpp/ccapi_session_configs.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_SESSION_CONFIGS_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_SESSION_CONFIGS_H_
+#pragma once
+
 #include <map>
 #include <set>
 #include <string>
@@ -440,4 +440,3 @@ class SessionConfigs {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_SESSION_CONFIGS_H_
diff --git a/include/ccapi_cpp/ccapi_session_options.h b/include/ccapi_cpp/ccapi_session_options.h
index ffec80108..601eaad86 100644
--- a/include/ccapi_cpp/ccapi_session_options.h
+++ b/include/ccapi_cpp/ccapi_session_options.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_SESSION_OPTIONS_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_SESSION_OPTIONS_H_
+#pragma once
+
 #include <optional>
 #include <string>
 
@@ -64,4 +64,3 @@ class SessionOptions {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_SESSION_OPTIONS_H_
diff --git a/include/ccapi_cpp/ccapi_subscription.h b/include/ccapi_cpp/ccapi_subscription.h
index 5eb8fff01..e07f49694 100644
--- a/include/ccapi_cpp/ccapi_subscription.h
+++ b/include/ccapi_cpp/ccapi_subscription.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_SUBSCRIPTION_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_SUBSCRIPTION_H_
+#pragma once
+
 #include <set>
 #include <string>
 
@@ -193,4 +193,3 @@ class Subscription {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_SUBSCRIPTION_H_
diff --git a/include/ccapi_cpp/ccapi_url.h b/include/ccapi_cpp/ccapi_url.h
index a39fdaddf..8b8ac5a11 100644
--- a/include/ccapi_cpp/ccapi_url.h
+++ b/include/ccapi_cpp/ccapi_url.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_URL_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_URL_H_
+#pragma once
+
 #include <regex>
 #include <string>
 
@@ -120,4 +120,3 @@ class Url {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_URL_H_
diff --git a/include/ccapi_cpp/ccapi_util.h b/include/ccapi_cpp/ccapi_util.h
index 3d0652c6e..7797ac120 100644
--- a/include/ccapi_cpp/ccapi_util.h
+++ b/include/ccapi_cpp/ccapi_util.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_UTIL_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_UTIL_H_
+#pragma once
+
 #include <chrono>
 #include <sstream>
 
@@ -8,4 +8,3 @@ namespace ccapi {
 typedef std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> TimePoint;
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_UTIL_H_
diff --git a/include/ccapi_cpp/ccapi_util_private.h b/include/ccapi_cpp/ccapi_util_private.h
index 655a1d912..3e673b64d 100644
--- a/include/ccapi_cpp/ccapi_util_private.h
+++ b/include/ccapi_cpp/ccapi_util_private.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_UTIL_PRIVATE_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_UTIL_PRIVATE_H_
+#pragma once
+
 #ifdef _WIN32
 #define timegm _mkgmtime
 #endif
@@ -1877,4 +1877,3 @@ V mapGetWithDefault(const C<K, V, Args...>& m, const K& key, const V defaultValu
 }
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_UTIL_PRIVATE_H_
diff --git a/include/ccapi_cpp/ccapi_ws_connection.h b/include/ccapi_cpp/ccapi_ws_connection.h
index fdc28ca88..931ea09e9 100644
--- a/include/ccapi_cpp/ccapi_ws_connection.h
+++ b/include/ccapi_cpp/ccapi_ws_connection.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_CCAPI_WS_CONNECTION_H_
-#define INCLUDE_CCAPI_CPP_CCAPI_WS_CONNECTION_H_
+#pragma once
 
 #include <string>
 #include <variant>
@@ -164,5 +163,3 @@ class WsConnection {
 };
 
 } /* namespace ccapi */
-
-#endif  // INCLUDE_CCAPI_CPP_CCAPI_WS_CONNECTION_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service.h b/include/ccapi_cpp/service/ccapi_execution_management_service.h
index 962012962..8e4358e3f 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #include <sys/stat.h>
 
@@ -373,4 +373,3 @@ class ExecutionManagementService : public Service {
 
 } /* namespace ccapi */
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_ascendex.h b/include/ccapi_cpp/service/ccapi_execution_management_service_ascendex.h
index 5768cfe8a..4b6836134 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_ascendex.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_ascendex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ASCENDEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ASCENDEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_ASCENDEX
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -520,4 +520,3 @@ class ExecutionManagementServiceAscendex : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ASCENDEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance.h
index 4d5603d3b..e19717dbb 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE
 #ifndef CCAPI_BINANCE_CREATE_ORDER_PATH
@@ -53,4 +53,3 @@ class ExecutionManagementServiceBinance : public ExecutionManagementServiceBinan
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_base.h
index b56e81f53..c5b0370ed 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_BINANCE_US) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES) || \
     defined(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
@@ -873,4 +873,3 @@ class ExecutionManagementServiceBinanceBase : public ExecutionManagementService
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_coin_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_coin_futures.h
index 237f0aaf4..9a9756757 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_coin_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_coin_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_COIN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_COIN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h"
@@ -43,4 +43,3 @@ class ExecutionManagementServiceBinanceCoinFutures : public ExecutionManagementS
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_COIN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h
index cf641ff62..a9141976e 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_DERIVATIVES_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_DERIVATIVES_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
 #include "ccapi_cpp/service/ccapi_execution_management_service_binance_base.h"
@@ -72,4 +72,3 @@ class ExecutionManagementServiceBinanceDerivativesBase : public ExecutionManagem
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_DERIVATIVES_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_us.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_us.h
index e3558727b..d4f7697fe 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_us.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_us.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_US_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_US_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_US
 #include "ccapi_cpp/service/ccapi_execution_management_service_binance_base.h"
@@ -34,4 +34,3 @@ class ExecutionManagementServiceBinanceUs : public ExecutionManagementServiceBin
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_US_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_usds_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_usds_futures.h
index 93bf5eae3..5fe30255a 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_binance_usds_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_binance_usds_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_USDS_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_USDS_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service_binance_derivatives_base.h"
@@ -43,4 +43,3 @@ class ExecutionManagementServiceBinanceUsdsFutures : public ExecutionManagementS
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BINANCE_USDS_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitfinex.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitfinex.h
index d73b2d1ab..476579802 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitfinex.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitfinex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITFINEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITFINEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITFINEX
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -480,4 +480,3 @@ class ExecutionManagementServiceBitfinex : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITFINEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget.h
index 67d9743d2..f24e64f2b 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITGET
 #include "ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h"
@@ -436,4 +436,3 @@ class ExecutionManagementServiceBitget : public ExecutionManagementServiceBitget
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h
index 5a8df34da..0cca0050c 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_BITGET) || defined(CCAPI_ENABLE_EXCHANGE_BITGET_FUTURES)
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -83,4 +83,3 @@ class ExecutionManagementServiceBitgetBase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_futures.h
index f5dbced38..10d8436aa 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitget_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITGET_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service_bitget_base.h"
@@ -523,4 +523,3 @@ class ExecutionManagementServiceBitgetFutures : public ExecutionManagementServic
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITGET_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitmart.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitmart.h
index 69fd645e8..26764ba10 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitmart.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitmart.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMART_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMART_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITMART
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -462,4 +462,3 @@ class ExecutionManagementServiceBitmart : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMART_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitmex.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitmex.h
index 2a7452a85..2f22c9b70 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitmex.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitmex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITMEX
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -471,4 +471,3 @@ class ExecutionManagementServiceBitmex : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITMEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bitstamp.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bitstamp.h
index 413c453d6..ec0f164c3 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bitstamp.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bitstamp.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITSTAMP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITSTAMP_H_
+#pragma once
 
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BITSTAMP
@@ -442,4 +441,3 @@ class ExecutionManagementServiceBitstamp : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BITSTAMP_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_bybit.h b/include/ccapi_cpp/service/ccapi_execution_management_service_bybit.h
index 8baeb0ed9..c6d3385dd 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_bybit.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_bybit.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BYBIT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BYBIT_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_BYBIT
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -653,4 +653,3 @@ class ExecutionManagementServiceBybit : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_BYBIT_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_coinbase.h b/include/ccapi_cpp/service/ccapi_execution_management_service_coinbase.h
index 576605062..7fdebbb8c 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_coinbase.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_coinbase.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_COINBASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_COINBASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_COINBASE
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -402,4 +402,3 @@ class ExecutionManagementServiceCoinbase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_COINBASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_cryptocom.h b/include/ccapi_cpp/service/ccapi_execution_management_service_cryptocom.h
index 7202ec593..79b70e172 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_cryptocom.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_cryptocom.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_CRYPTOCOM_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_CRYPTOCOM_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_CRYPTOCOM
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -583,4 +583,3 @@ class ExecutionManagementServiceCryptocom : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_CRYPTOCOM_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_deribit.h b/include/ccapi_cpp/service/ccapi_execution_management_service_deribit.h
index 5d11fa03a..d47b639a0 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_deribit.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_deribit.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_DERIBIT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_DERIBIT_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_DERIBIT
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -535,4 +535,3 @@ class ExecutionManagementServiceDeribit : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_DERIBIT_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_erisx.h b/include/ccapi_cpp/service/ccapi_execution_management_service_erisx.h
index 406a81597..1581648a1 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_erisx.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_erisx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ERISX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ERISX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_ERISX
 #include "ccapi_cpp/ccapi_jwt.h"
@@ -239,4 +239,3 @@ class ExecutionManagementServiceErisx : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_ERISX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx.h b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx.h
index e69074b14..3af65c5a4 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX
 #include "ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h"
@@ -79,4 +79,3 @@ class ExecutionManagementServiceFtx : public ExecutionManagementServiceFtxBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h
index e0f881a0b..b8e472b3e 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_FTX) || defined(CCAPI_ENABLE_EXCHANGE_FTX_US)
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -441,4 +441,3 @@ class ExecutionManagementServiceFtxBase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_us.h b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_us.h
index 60adb1011..0a852e558 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_us.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_ftx_us.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_US_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_US_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX_US
 #include "ccapi_cpp/service/ccapi_execution_management_service_ftx_base.h"
@@ -41,4 +41,3 @@ class ExecutionManagementServiceFtxUs : public ExecutionManagementServiceFtxBase
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_FTX_US_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio.h b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio.h
index b5dd4b68a..be2fb34b8 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_GATEIO
 #include "ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h"
@@ -38,4 +38,3 @@ class ExecutionManagementServiceGateio : public ExecutionManagementServiceGateio
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h
index 20b66f522..c5f33e630 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_GATEIO) || defined(CCAPI_ENABLE_EXCHANGE_GATEIO_PERPETUAL_FUTURES)
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -465,4 +465,3 @@ class ExecutionManagementServiceGateioBase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_perpetual_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_perpetual_futures.h
index bb1291522..6aaf0db4d 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_perpetual_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_gateio_perpetual_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_GATEIO_PERPETUAL_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service_gateio_base.h"
@@ -117,4 +117,3 @@ class ExecutionManagementServiceGateioPerpetualFutures : public ExecutionManagem
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_gemini.h b/include/ccapi_cpp/service/ccapi_execution_management_service_gemini.h
index 1913ce2db..2399d55b5 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_gemini.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_gemini.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GEMINI_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GEMINI_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_GEMINI
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -421,4 +421,3 @@ class ExecutionManagementServiceGemini : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_GEMINI_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi.h b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi.h
index 0af963f1e..960d1fc4f 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI
 #include "ccapi_cpp/service/ccapi_execution_management_service_huobi_base.h"
@@ -438,4 +438,3 @@ class ExecutionManagementServiceHuobi : public ExecutionManagementServiceHuobiBa
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_base.h
index 86f289b22..d3e3f1e09 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_HUOBI) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP)
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -137,4 +137,3 @@ class ExecutionManagementServiceHuobiBase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_coin_swap.h b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_coin_swap.h
index 7f8f1d96b..a35def54a 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_coin_swap.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_coin_swap.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_COIN_SWAP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_COIN_SWAP_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP
 #include "ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h"
@@ -35,4 +35,3 @@ class ExecutionManagementServiceHuobiCoinSwap : public ExecutionManagementServic
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_COIN_SWAP_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h
index 60e39d6a9..46ddb310e 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_DERIVATIVES_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_DERIVATIVES_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP)
 #include "ccapi_cpp/ccapi_util_private.h"
@@ -421,4 +421,3 @@ class ExecutionManagementServiceHuobiDerivativesBase : public ExecutionManagemen
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_DERIVATIVES_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_usdt_swap.h b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_usdt_swap.h
index 3245911e5..437bbfd16 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_usdt_swap.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_huobi_usdt_swap.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_USDT_SWAP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_USDT_SWAP_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP
 #include "ccapi_cpp/service/ccapi_execution_management_service_huobi_derivatives_base.h"
@@ -35,4 +35,3 @@ class ExecutionManagementServiceHuobiUsdtSwap : public ExecutionManagementServic
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_HUOBI_USDT_SWAP_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_kraken.h b/include/ccapi_cpp/service/ccapi_execution_management_service_kraken.h
index ba89e56f6..6ed6bfb9d 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_kraken.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_kraken.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_KRAKEN
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -478,4 +478,3 @@ class ExecutionManagementServiceKraken : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_kraken_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_kraken_futures.h
index 5497bf053..4c80c9be5 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_kraken_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_kraken_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_KRAKEN_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -436,4 +436,3 @@ class ExecutionManagementServiceKrakenFutures : public ExecutionManagementServic
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KRAKEN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin.h b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin.h
index 8d437c9a7..308e27238 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_KUCOIN
 #include "ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h"
@@ -66,4 +66,3 @@ class ExecutionManagementServiceKucoin : public ExecutionManagementServiceKucoin
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h
index e605b3682..db1085edd 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #if defined(CCAPI_ENABLE_EXCHANGE_KUCOIN) || defined(CCAPI_ENABLE_EXCHANGE_KUCOIN_FUTURES)
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -495,4 +495,3 @@ class ExecutionManagementServiceKucoinBase : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_futures.h
index 7d13be86c..c97c032c0 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_kucoin_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_KUCOIN_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service_kucoin_base.h"
@@ -67,4 +67,3 @@ class ExecutionManagementServiceKucoinFutures : public ExecutionManagementServic
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_KUCOIN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_mexc.h b/include/ccapi_cpp/service/ccapi_execution_management_service_mexc.h
index 0882070b5..2ef7a8e96 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_mexc.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_mexc.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_MEXC
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -449,4 +449,3 @@ class ExecutionManagementServiceMexc : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_mexc_futures.h b/include/ccapi_cpp/service/ccapi_execution_management_service_mexc_futures.h
index 7aa548bbe..4cbe92f0c 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_mexc_futures.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_mexc_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_MEXC_FUTURES
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -546,4 +546,3 @@ this->send(wsConnectionPtr, sendString, ec);
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_MEXC_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_okx.h b/include/ccapi_cpp/service/ccapi_execution_management_service_okx.h
index 0b9e50d36..36787b3ec 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_okx.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_okx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_OKX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_OKX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_EXECUTION_MANAGEMENT
 #ifdef CCAPI_ENABLE_EXCHANGE_OKX
 #include "ccapi_cpp/service/ccapi_execution_management_service.h"
@@ -670,4 +670,3 @@ class ExecutionManagementServiceOkx : public ExecutionManagementService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_EXECUTION_MANAGEMENT_SERVICE_OKX_H_
diff --git a/include/ccapi_cpp/service/ccapi_execution_management_service_whitebit.h b/include/ccapi_cpp/service/ccapi_execution_management_service_whitebit.h
index e69de29bb..6f70f09be 100644
--- a/include/ccapi_cpp/service/ccapi_execution_management_service_whitebit.h
+++ b/include/ccapi_cpp/service/ccapi_execution_management_service_whitebit.h
@@ -0,0 +1 @@
+#pragma once
diff --git a/include/ccapi_cpp/service/ccapi_fix_service.h b/include/ccapi_cpp/service/ccapi_fix_service.h
index 337b00d61..f63b37734 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifndef CCAPI_FIX_READ_BUFFER_SIZE
 #define CCAPI_FIX_READ_BUFFER_SIZE (1 << 20)
@@ -698,4 +698,3 @@ class FixService : public Service {
 
 } /* namespace ccapi */
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_binance.h b/include/ccapi_cpp/service/ccapi_fix_service_binance.h
index ff145e39a..d6611a7a4 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_binance.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_binance.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_BINANCE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_BINANCE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE
 #include "ccapi_cpp/ccapi_hmac.h"
@@ -88,4 +88,3 @@ class FixServiceBinance : public FixService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_BINANCE_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_coinbase.h b/include/ccapi_cpp/service/ccapi_fix_service_coinbase.h
index ab1a8e2ce..63c7917b2 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_coinbase.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_coinbase.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_COINBASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_COINBASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifdef CCAPI_ENABLE_EXCHANGE_COINBASE
 #include "ccapi_cpp/ccapi_hmac.h"
@@ -70,4 +70,3 @@ class FixServiceCoinbase : public FixService<beast::ssl_stream<beast::tcp_stream
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_COINBASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_ftx.h b/include/ccapi_cpp/service/ccapi_fix_service_ftx.h
index be36dc15e..b835f4d18 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_ftx.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_ftx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX
 #include "ccapi_cpp/ccapi_hmac.h"
@@ -34,4 +34,3 @@ class FixServiceFtx : public FixServiceFtxBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_ftx_base.h b/include/ccapi_cpp/service/ccapi_fix_service_ftx_base.h
index 3c6cddc81..1014b6785 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_ftx_base.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_ftx_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #if defined(CCAPI_ENABLE_EXCHANGE_FTX) || defined(CCAPI_ENABLE_EXCHANGE_FTX_US)
 #include "ccapi_cpp/ccapi_hmac.h"
@@ -59,4 +59,3 @@ class FixServiceFtxBase : public FixService<beast::ssl_stream<beast::tcp_stream>
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_ftx_us.h b/include/ccapi_cpp/service/ccapi_fix_service_ftx_us.h
index 9d03c9bf9..963b16fce 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_ftx_us.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_ftx_us.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_US_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_US_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX_US
 #include "ccapi_cpp/ccapi_hmac.h"
@@ -34,4 +34,3 @@ class FixServiceFtxUs : public FixServiceFtxBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_FTX_US_H_
diff --git a/include/ccapi_cpp/service/ccapi_fix_service_gemini.h b/include/ccapi_cpp/service/ccapi_fix_service_gemini.h
index 31496535a..7c6d2b5d0 100644
--- a/include/ccapi_cpp/service/ccapi_fix_service_gemini.h
+++ b/include/ccapi_cpp/service/ccapi_fix_service_gemini.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_GEMINI_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_GEMINI_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_FIX
 #ifdef CCAPI_ENABLE_EXCHANGE_GEMINI
 #include "ccapi_cpp/service/ccapi_fix_service.h"
@@ -56,4 +56,3 @@ class FixServiceGemini : public FixService<beast::tcp_stream> {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_FIX_SERVICE_GEMINI_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service.h b/include/ccapi_cpp/service/ccapi_market_data_service.h
index 84655cee2..85e8a3117 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #include <functional>
 #include <map>
@@ -1735,4 +1735,3 @@ class MarketDataService : public Service {
 
 } /* namespace ccapi */
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_ascendex.h b/include/ccapi_cpp/service/ccapi_market_data_service_ascendex.h
index 31a47d4bb..b70e109f2 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_ascendex.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_ascendex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ASCENDEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ASCENDEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_ASCENDEX
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -330,4 +330,3 @@ class MarketDataServiceAscendex : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ASCENDEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance.h
index 2f6904d66..44726a05d 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE
 #include "ccapi_cpp/service/ccapi_market_data_service_binance_base.h"
@@ -37,4 +37,3 @@ class MarketDataServiceBinance : public MarketDataServiceBinanceBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance_base.h
index 2b5598ce8..4c9c55442 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_BINANCE_US) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES) || \
     defined(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
@@ -628,4 +628,3 @@ class MarketDataServiceBinanceBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance_coin_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance_coin_futures.h
index b5543e8bc..a17f6f888 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance_coin_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance_coin_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_COIN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_COIN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h"
@@ -37,4 +37,3 @@ class MarketDataServiceBinanceCoinFutures : public MarketDataServiceBinanceDeriv
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_COIN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h
index bffc7bd63..c3f1717d7 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_DERIVATIVES_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_DERIVATIVES_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES) || defined(CCAPI_ENABLE_EXCHANGE_BINANCE_COIN_FUTURES)
 #include "ccapi_cpp/service/ccapi_market_data_service_binance_base.h"
@@ -164,4 +164,3 @@ class MarketDataServiceBinanceDerivativesBase : public MarketDataServiceBinanceB
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_DERIVATIVES_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance_us.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance_us.h
index 75d6240cb..027cbe8b9 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance_us.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance_us.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_US_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_US_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_US
 #include "ccapi_cpp/service/ccapi_market_data_service_binance_base.h"
@@ -37,4 +37,3 @@ class MarketDataServiceBinanceUs : public MarketDataServiceBinanceBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_US_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_binance_usds_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_binance_usds_futures.h
index 1d85c61ff..a7941c33f 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_binance_usds_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_binance_usds_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_USDS_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_USDS_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BINANCE_USDS_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service_binance_derivatives_base.h"
@@ -37,4 +37,3 @@ class MarketDataServiceBinanceUsdsFutures : public MarketDataServiceBinanceDeriv
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BINANCE_USDS_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitfinex.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitfinex.h
index 4692b25ae..707687d22 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitfinex.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitfinex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITFINEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITFINEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITFINEX
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -587,4 +587,3 @@ class MarketDataServiceBitfinex : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITFINEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitget.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitget.h
index 0e61a8a50..9ad5094fd 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitget.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitget.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITGET
 #include "ccapi_cpp/service/ccapi_market_data_service_bitget_base.h"
@@ -32,4 +32,3 @@ class MarketDataServiceBitget : public MarketDataServiceBitgetBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitget_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitget_base.h
index 6e3ad9b16..6392be1a4 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitget_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitget_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_BITGET) || defined(CCAPI_ENABLE_EXCHANGE_BITGET_FUTURES)
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -523,4 +523,3 @@ class MarketDataServiceBitgetBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitget_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitget_futures.h
index e7e4dbba4..b11f21553 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitget_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitget_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITGET_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service_bitget_base.h"
@@ -33,4 +33,3 @@ class MarketDataServiceBitgetFutures : public MarketDataServiceBitgetBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITGET_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitmart.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitmart.h
index bbf976315..3bd0df76d 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitmart.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitmart.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMART_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMART_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITMART
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -330,4 +330,3 @@ class MarketDataServiceBitmart : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMART_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitmex.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitmex.h
index 8da92187b..3aecf2025 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitmex.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitmex.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMEX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMEX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITMEX
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -340,4 +340,3 @@ class MarketDataServiceBitmex : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITMEX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bitstamp.h b/include/ccapi_cpp/service/ccapi_market_data_service_bitstamp.h
index 81388a1ea..9f667270b 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bitstamp.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bitstamp.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITSTAMP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITSTAMP_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BITSTAMP
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -315,4 +315,3 @@ class MarketDataServiceBitstamp : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BITSTAMP_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_bybit.h b/include/ccapi_cpp/service/ccapi_market_data_service_bybit.h
index 2b8950fc6..b6919fac0 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_bybit.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_bybit.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BYBIT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BYBIT_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_BYBIT
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -483,4 +483,3 @@ class MarketDataServiceBybit : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_BYBIT_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_coinbase.h b/include/ccapi_cpp/service/ccapi_market_data_service_coinbase.h
index d7b452054..1273ccd8a 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_coinbase.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_coinbase.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_COINBASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_COINBASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_COINBASE
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -342,4 +342,3 @@ class MarketDataServiceCoinbase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_COINBASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_cryptocom.h b/include/ccapi_cpp/service/ccapi_market_data_service_cryptocom.h
index b4745d138..b66d8374b 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_cryptocom.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_cryptocom.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_CRYPTOCOM_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_CRYPTOCOM_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_CRYPTOCOM
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -353,4 +353,3 @@ class MarketDataServiceCryptocom : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_CRYPTOCOM_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_deribit.h b/include/ccapi_cpp/service/ccapi_market_data_service_deribit.h
index afa8ed01e..6001f9cc3 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_deribit.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_deribit.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_DERIBIT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_DERIBIT_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_DERIBIT
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -482,4 +482,3 @@ class MarketDataServiceDeribit : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_DERIBIT_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_erisx.h b/include/ccapi_cpp/service/ccapi_market_data_service_erisx.h
index c3bba0730..284e9a26d 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_erisx.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_erisx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ERISX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ERISX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_ERISX
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -178,4 +178,3 @@ class MarketDataServiceErisx : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_ERISX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_ftx.h b/include/ccapi_cpp/service/ccapi_market_data_service_ftx.h
index d5441bd2f..27c0eedf4 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_ftx.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_ftx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX
 #include "ccapi_cpp/service/ccapi_market_data_service_ftx_base.h"
@@ -35,4 +35,3 @@ class MarketDataServiceFtx : public MarketDataServiceFtxBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_ftx_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_ftx_base.h
index 3528a6e1a..c0b7ed040 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_ftx_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_ftx_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_FTX) || defined(CCAPI_ENABLE_EXCHANGE_FTX_US)
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -380,4 +380,3 @@ class MarketDataServiceFtxBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_ftx_us.h b/include/ccapi_cpp/service/ccapi_market_data_service_ftx_us.h
index 617f8bea0..fa22319f4 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_ftx_us.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_ftx_us.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_US_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_US_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_FTX_US
 #include "ccapi_cpp/service/ccapi_market_data_service_ftx_base.h"
@@ -35,4 +35,3 @@ class MarketDataServiceFtxUs : public MarketDataServiceFtxBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_FTX_US_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_gateio.h b/include/ccapi_cpp/service/ccapi_market_data_service_gateio.h
index dce6a969c..1d7c852b0 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_gateio.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_gateio.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_GATEIO
 #include "ccapi_cpp/service/ccapi_market_data_service_gateio_base.h"
@@ -180,4 +180,3 @@ class MarketDataServiceGateio : public MarketDataServiceGateioBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_gateio_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_gateio_base.h
index f40939152..e2368025a 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_gateio_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_gateio_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_GATEIO) || defined(CCAPI_ENABLE_EXCHANGE_GATEIO_PERPETUAL_FUTURES)
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -381,4 +381,3 @@ class MarketDataServiceGateioBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_gateio_perpetual_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_gateio_perpetual_futures.h
index d02d680b2..8b6b7ad04 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_gateio_perpetual_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_gateio_perpetual_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_GATEIO_PERPETUAL_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service_gateio_base.h"
@@ -221,4 +221,3 @@ class MarketDataServiceGateioPerpetualFutures : public MarketDataServiceGateioBa
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GATEIO_PERPETUAL_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_gemini.h b/include/ccapi_cpp/service/ccapi_market_data_service_gemini.h
index 6c2b54229..dff1f8657 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_gemini.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_gemini.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GEMINI_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GEMINI_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_GEMINI
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -319,4 +319,3 @@ class MarketDataServiceGemini : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_GEMINI_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_huobi.h b/include/ccapi_cpp/service/ccapi_market_data_service_huobi.h
index 385f4bc3e..99e7f0f12 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_huobi.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_huobi.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI
 #include "ccapi_cpp/service/ccapi_market_data_service_huobi_base.h"
@@ -117,4 +117,3 @@ class MarketDataServiceHuobi : public MarketDataServiceHuobiBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_base.h
index 329ba2011..03c3eefa4 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_HUOBI) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP)
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -396,4 +396,3 @@ class MarketDataServiceHuobiBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_coin_swap.h b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_coin_swap.h
index 325908a9b..fe8ff4613 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_coin_swap.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_coin_swap.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_COIN_SWAP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_COIN_SWAP_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP
 #include "ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h"
@@ -27,4 +27,3 @@ class MarketDataServiceHuobiCoinSwap : public MarketDataServiceHuobiDerivativesB
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_COIN_SWAP_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h
index fe4694d31..d04264ef1 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_DERIVATIVES_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_DERIVATIVES_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP)
 #include "ccapi_cpp/service/ccapi_market_data_service_huobi_base.h"
@@ -108,4 +108,3 @@ class MarketDataServiceHuobiDerivativesBase : public MarketDataServiceHuobiBase
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_DERIVATIVES_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_usdt_swap.h b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_usdt_swap.h
index 55a222b6c..b083518af 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_huobi_usdt_swap.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_huobi_usdt_swap.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_USDT_SWAP_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_USDT_SWAP_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP
 #include "ccapi_cpp/service/ccapi_market_data_service_huobi_derivatives_base.h"
@@ -27,4 +27,3 @@ class MarketDataServiceHuobiUsdtSwap : public MarketDataServiceHuobiDerivativesB
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_HUOBI_USDT_SWAP_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_kraken.h b/include/ccapi_cpp/service/ccapi_market_data_service_kraken.h
index 3462d395f..0d531eaca 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_kraken.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_kraken.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_KRAKEN
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -416,4 +416,3 @@ class MarketDataServiceKraken : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_kraken_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_kraken_futures.h
index d9ebb2f5e..e8959e2c2 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_kraken_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_kraken_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_KRAKEN_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -290,4 +290,3 @@ class MarketDataServiceKrakenFutures : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KRAKEN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin.h b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin.h
index f591164be..c26da07b9 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_KUCOIN)
 #include "ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h"
@@ -59,4 +59,3 @@ class MarketDataServiceKucoin : public MarketDataServiceKucoinBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h
index 29a62b11f..52c343c76 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_BASE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_BASE_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_KUCOIN) || defined(CCAPI_ENABLE_EXCHANGE_KUCOIN_FUTURES)
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -657,4 +657,3 @@ class MarketDataServiceKucoinBase : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_BASE_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_futures.h
index e99731624..684371c40 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_kucoin_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #if defined(CCAPI_ENABLE_EXCHANGE_KUCOIN_FUTURES)
 #include "ccapi_cpp/service/ccapi_market_data_service_kucoin_base.h"
@@ -51,4 +51,3 @@ class MarketDataServiceKucoinFutures : public MarketDataServiceKucoinBase {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_KUCOIN_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_mexc.h b/include/ccapi_cpp/service/ccapi_market_data_service_mexc.h
index 3eb0841fc..852b6330a 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_mexc.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_mexc.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_MEXC
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -348,4 +348,3 @@ class MarketDataServiceMexc : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_mexc_futures.h b/include/ccapi_cpp/service/ccapi_market_data_service_mexc_futures.h
index cb5c4c4a1..97208a7f2 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_mexc_futures.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_mexc_futures.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_FUTURES_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_FUTURES_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_MEXC_FUTURES
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -261,4 +261,3 @@ class MarketDataServiceMexcFutures : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_MEXC_FUTURES_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_okx.h b/include/ccapi_cpp/service/ccapi_market_data_service_okx.h
index 828f96958..ccb997391 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_okx.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_okx.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_OKX_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_OKX_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_OKX
 
@@ -601,4 +601,3 @@ class MarketDataServiceOkx : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_OKX_H_
diff --git a/include/ccapi_cpp/service/ccapi_market_data_service_whitebit.h b/include/ccapi_cpp/service/ccapi_market_data_service_whitebit.h
index e5217be65..df891a519 100644
--- a/include/ccapi_cpp/service/ccapi_market_data_service_whitebit.h
+++ b/include/ccapi_cpp/service/ccapi_market_data_service_whitebit.h
@@ -1,5 +1,5 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_WHITEBIT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_WHITEBIT_H_
+#pragma once
+
 #ifdef CCAPI_ENABLE_SERVICE_MARKET_DATA
 #ifdef CCAPI_ENABLE_EXCHANGE_WHITEBIT
 #include "ccapi_cpp/service/ccapi_market_data_service.h"
@@ -339,4 +339,3 @@ class MarketDataServiceWhitebit : public MarketDataService {
 } /* namespace ccapi */
 #endif
 #endif
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_MARKET_DATA_SERVICE_WHITEBIT_H_
diff --git a/include/ccapi_cpp/service/ccapi_service.h b/include/ccapi_cpp/service/ccapi_service.h
index c23734483..877b47377 100644
--- a/include/ccapi_cpp/service/ccapi_service.h
+++ b/include/ccapi_cpp/service/ccapi_service.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_H_
+#pragma once
 
 #if (defined(CCAPI_ENABLE_SERVICE_MARKET_DATA) &&                                                                                                   \
      (defined(CCAPI_ENABLE_EXCHANGE_HUOBI) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_USDT_SWAP) || defined(CCAPI_ENABLE_EXCHANGE_HUOBI_COIN_SWAP))) || \
@@ -1677,4 +1676,3 @@ class Service : public std::enable_shared_from_this<Service> {
 };
 
 } /* namespace ccapi */
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_H_
diff --git a/include/ccapi_cpp/service/ccapi_service_context.h b/include/ccapi_cpp/service/ccapi_service_context.h
index e6faa536f..a6fb98e63 100644
--- a/include/ccapi_cpp/service/ccapi_service_context.h
+++ b/include/ccapi_cpp/service/ccapi_service_context.h
@@ -1,5 +1,4 @@
-#ifndef INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_CONTEXT_H_
-#define INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_CONTEXT_H_
+#pragma once
 
 #include "boost/asio/ssl.hpp"
 #include "ccapi_cpp/ccapi_logger.h"
@@ -94,5 +93,3 @@ class ServiceContext {
 };
 
 } /* namespace ccapi */
-
-#endif  // INCLUDE_CCAPI_CPP_SERVICE_CCAPI_SERVICE_CONTEXT_H_