Special

[asciphx]

introduce

This is a modified version, in order to support the latest version of boost,and cross platform as well as modular development.

Requirements

• C++ compiler with good C++17 support (tested with g++>7.1)
• Any version of boost library
• CMake for build examples
• Linking with tcmalloc/jemalloc is recommended for speed.
• Now supporting VS2019 with limited functionality (only run-time check for url is available.)

  Examlpe

  Static reflection

  app.route_dynamic("/list")([]() {
  List list=json::parse(R"({"user":{"is":false,"age":25,"weight":50.6,"name":"www"},
          "userList":[{"is":true,"weight":52.0,"age":23,"state":true,"name":"wwzzgg"},
      {"is":true,"weight":51.0,"name":"best","age":26}]})").get<List>();
  json json_output=json(list);
  return json_output.dump(2);
  });

  server rendering

  CROW_ROUTE(app,"/")([] {
  char name[64];gethostname(name,64);
  mustache::Ctx x;x["servername"]=name;
  auto page=mustache::load("index.html");
  return page.render(x);
  });

  JSON Response

  CROW_ROUTE(app, "/json")([]{
  crow::json x;
  x["message"]="Hello, World!";
  x["double"]=3.1415926;
  x["int"]=2352352;
  x["true"]=true;
  x["false"]=false;
  x["null"]=nullptr;
  x["bignumber"]=2353464586543265455;
  return x;
  });

  Arguments

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

  Handler arguments type check at compile time

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

Handling JSON Requests

CROW_ROUTE(app, "/add_json").methods("POST"_method)
([](const crow::Req& req){
    auto x = crow::json::load(req.body);
    if (!x)
        return crow::Res(400);
    std::ostringstream os;
    os << x.dump();
    return crow::Res{os.str()};
});