crow

C/C++ 2025-08-05

重要的通知

不再维护。

工作叉在这里: crow CPP/ crow

crow是Web的C ++缩影。 (受Python烧瓶的启发)

crow.h" int main() { crow ::SimpleApp app; crow _ROUTE(app, "/")([](){ return "Hello world"; }); app.port(18080).multithreaded().run(); }">
# include " crow .h "

int main ()
{
    crow ::SimpleApp app;

    crow _ROUTE (app, " / " )([](){
        return " Hello world " ;
    });

    app. port ( 18080 ). multithreaded (). run ();
}

特征

  • 易于路由
    • 烧瓶相似
    • 类型安全处理程序(请参见示例)
  • 非常快
    • 有关crow基准测试的更多数据
  • 快速内置的JSON PARSER( crow :: JSON)
    • 您也可以使用JSON11或Rapidjson以提高速度或可读性
  • 基于胡子的模板库( crow ::小胡子)
  • 仅标头
  • 提供一个合并的标题文件crow _all.h提供每个功能(从此处下载)
  • 中间件支持
  • Websocket支持

仍在开发中

  • 内置ORM
    • 如果需要,请检查SQLPP11。

例子

JSON回应

crow_ROUTE(app, "/json") ([]{ crow ::json::wvalue x; x["message"] = "Hello, World!"; return x; });">
 crow _ROUTE (app, " /json " )
([]{
    crow ::json::wvalue x;
    x[ " message " ] = " Hello, World! " ;
    return x;
});

争论

crow_ROUTE(app,"/hello/") ([](int count){ if (count > 100) return crow ::response(400); std::ostringstream os; os << count << " bottles of beer!"; return crow ::response(os.str()); });">
 crow _ROUTE (app, " /hello/ " )
([]( int count){
    if (count > 100 )
        return crow ::response ( 400 );
    std::ostringstream os;
    os << count << " bottles of beer! " ;
    return crow ::response (os. str ());
});

处理程序参数类型在编译时间检查

crow_ROUTE(app,"/another/") ([](int a, int b){ return crow ::response(500); });">
 // Compile error with message "Handler type is mismatched with URL paramters"
crow _ROUTE (app, " /another/ " )
([]( int a, int b){
    return crow ::response ( 500 );
});

处理JSON请求

crow_ROUTE(app, "/add_json") .methods("POST"_method) ([](const crow ::request& req){ auto x = crow ::json::load(req.body); if (!x) return crow ::response(400); int sum = x["a"].i()+x["b"].i(); std::ostringstream os; os << sum; return crow ::response{os.str()}; });">
 crow _ROUTE (app, " /add_json " )
.methods( " POST " _method)
([]( const crow ::request& req){
    auto x = crow ::json::load (req. body );
    if (!x)
        return crow ::response ( 400 );
    int sum = x[ " a " ]. i ()+x[ " b " ]. i ();
    std::ostringstream os;
    os << sum;
    return crow ::response{os. str ()};
});

如何构建

如果您只想使用crow ,请复制amalgamate/ crow _all.h并包含它。

要求

  • 具有良好C ++ 11支持的C ++编译器(用G ++测试> = 4.8)

  • Boost库

  • 构建示例的cmake

  • 建议与TCMALLOC/JEMALLOC链接以达到速度。

  • 现在支持功能有限的VS2013(仅提供URL的运行时间检查。)

建筑物(测试,示例)

建议使用CMAKE源代码。

mkdir build
cd build
cmake ..
make

您可以使用以下命令进行测试:

ctest

安装缺失的依赖项

Ubuntu

sudo apt-get install build-essential libtcmalloc-minimal4 && sudo ln -s /usr/lib/libtcmalloc_minimal.so.4 /usr/lib/libtcmalloc_minimal.so

OSX

brew install boost google-perftools

归因

crow使用以下库。

http-parser

https://gi*thub.c*o*m/nodejs/http-parser

http_parser.c is based on src/http/ngx_http_parse.c from NGINX copyright
Igor Sysoev.

Additional changes are licensed under the same terms as NGINX and
copyright Joyent, Inc. and other Node contributors. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE. 


qs_parse

https://g**ithub*.com/bartgrantham/qs_parse

Copyright (c) 2010 Bart Grantham
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.


TinySHA1

https://*git**hub.com/mohaps/TinySHA1

TinySHA1 - a header only implementation of the SHA1 algorithm. Based on the implementation in boost::uuid::details

Copyright (c) 2012-22 SAURAV MOHAPATRA mohaps@gmail.com
Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
下载源码

通过命令行克隆项目:

git clone https://github.com/ipkn/crow.git