{"id":15940,"date":"2024-03-15T11:59:59","date_gmt":"2024-03-15T11:59:59","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-is-c-used-with-websockets\/"},"modified":"2025-08-06T22:50:30","modified_gmt":"2025-08-06T22:50:30","slug":"how-is-c-used-with-websockets","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-is-c-used-with-websockets\/","title":{"rendered":"How is C++ used with websockets?"},"content":{"rendered":"<p>The steps to using WebSocket in C++ are as follows:<\/p>\n<ol>\n<li>Introducing WebSocket library: The first step is to bring in a WebSocket library, such as Boost.Asio, cpprestsdk, etc. These libraries provide the necessary functions for WebSocket.<\/li>\n<li>Creating a WebSocket object: Use the API provided by the WebSocket library to create a WebSocket object. For example, with the cpprestsdk library, you can use the websocketpp::client class to create a WebSocket client object.<\/li>\n<li>Connect to the WebSocket server: Use the connect method of the WebSocket object to establish a connection with the WebSocket server. You need to specify the address and port number of the server.<\/li>\n<li>Sending and receiving messages: You can use the send method of the WebSocket object to send messages to the server. At the same time, you can also receive messages sent by the server by setting a callback function.<\/li>\n<li>Close WebSocket connection: Use the close method of the WebSocket object to terminate the WebSocket connection.<\/li>\n<\/ol>\n<p>Here is an example code using the cpprestsdk library to create a WebSocket client.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;cpprest\/ws_client.h&gt;<\/span> <\/span>\r\n\r\n<span class=\"hljs-function\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span>\r\n<\/span>{\r\n    web::websockets::client::websocket_callback_client client;\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u8fde\u63a5\u5230WebSocket\u670d\u52a1\u5668<\/span>\r\n    client.<span class=\"hljs-built_in\">connect<\/span>(<span class=\"hljs-string\">\"ws:\/\/localhost:8080\"<\/span>).<span class=\"hljs-built_in\">then<\/span>([]() {\r\n        std::cout &lt;&lt; <span class=\"hljs-string\">\"Connected to server\"<\/span> &lt;&lt; std::endl;\r\n    });\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u6d88\u606f<\/span>\r\n    client.<span class=\"hljs-built_in\">send<\/span>(<span class=\"hljs-string\">\"Hello, server!\"<\/span>);\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u63a5\u6536\u6d88\u606f\u56de\u8c03\u51fd\u6570<\/span>\r\n    client.<span class=\"hljs-built_in\">set_message_handler<\/span>([](web::websockets::client::websocket_incoming_message msg) {\r\n        std::cout &lt;&lt; <span class=\"hljs-string\">\"Received message: \"<\/span> &lt;&lt; msg.<span class=\"hljs-built_in\">extract_string<\/span>().<span class=\"hljs-built_in\">get<\/span>() &lt;&lt; std::endl;\r\n    });\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u5173\u95ed\u8fde\u63a5<\/span>\r\n    client.<span class=\"hljs-built_in\">close<\/span>().<span class=\"hljs-built_in\">then<\/span>([]() {\r\n        std::cout &lt;&lt; <span class=\"hljs-string\">\"Disconnected from server\"<\/span> &lt;&lt; std::endl;\r\n    });\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>This is a simple WebSocket client example that connects to the ws:\/\/localhost:8080 server, sending and receiving messages. You can modify the code according to your own needs to adapt to different situations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The steps to using WebSocket in C++ are as follows: Introducing WebSocket library: The first step is to bring in a WebSocket library, such as Boost.Asio, cpprestsdk, etc. These libraries provide the necessary functions for WebSocket. Creating a WebSocket object: Use the API provided by the WebSocket library to create a WebSocket object. For example, [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-15940","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How is C++ used with websockets? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how is c++ used with websockets?. 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