Concepts.hpp

#pragma once
 
#include <boost/beast.hpp>
#include <boost/beast/core/error.hpp>
 
#include <concepts>
#include <memory>
#include <string>
 
namespace web {
 
struct ConnectionBase;

template <typename T>
concept SomeServerHandler = requires(
    T handler,
    std::string req,
    std::shared_ptr<ConnectionBase> ws,
    boost::beast::error_code ec
) {
    // the callback when server receives a request
    { handler(req, ws) };
};

struct ServerTag {
    virtual ~ServerTag() = default;
};
 
template <typename T>
concept SomeServer = std::derived_from<T, ServerTag>;
 
}  // namespace web