HttpErrorCategory.hpp

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#pragma once
#ifndef KURLYK_HEADER_KURLYK_UTILS_HTTP_ERROR_CATEGORY_HPP_INCLUDED
#define KURLYK_HEADER_KURLYK_UTILS_HTTP_ERROR_CATEGORY_HPP_INCLUDED

 
namespace kurlyk {
namespace utils {

    class HttpErrorCategory : public std::error_category {
    public:
        const char* name() const noexcept override {
            return "http";
        }
 
        std::string message(int ev) const override {
            switch (ev) {
                case 400: return "Bad Request";
                case 401: return "Unauthorized";
                case 403: return "Forbidden";
                case 404: return "Not Found";
                case 408: return "Request Timeout";
                case 429: return "Too Many Requests";
                case 500: return "Internal Server Error";
                case 502: return "Bad Gateway";
                case 503: return "Service Unavailable";
                case 504: return "Gateway Timeout";
                default:  return "HTTP Error " + std::to_string(ev);
            }
        }
    };

    inline std::error_code make_http_error(int status_code) {
        static HttpErrorCategory category;
        return std::error_code(status_code, category);
    }

    inline bool is_http_error(const std::error_code& ec) {
        return ec.category().name() == std::string("http");
    }
 
} // namespace utils
} // namespace kurlyk
 
#endif // KURLYK_HEADER_KURLYK_UTILS_HTTP_ERROR_CATEGORY_HPP_INCLUDED