library/cpp/messagebus/rain_check/http/client.h


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#pragma once 
 
#include <library/cpp/messagebus/rain_check/core/task.h>
 
#include <library/cpp/http/misc/httpcodes.h>

#include <util/generic/maybe.h>
#include <util/generic/ptr.h> 
#include <util/generic/string.h>
#include <util/system/defaults.h> 
#include <util/system/yassert.h> 
 
class THttpHeaders;

namespace NNeh { 
    class IProtocol;
    struct TResponse;
}
 
namespace NRainCheck { 
    class THttpCallback;
    class THttpClientService;
 
    class THttpFuture: public TSubtaskCompletion {
    public:
        enum EError {
            NoError = 0,
 
            CantResolveNameError = 1,
            BadHttpCodeError = 2,

            OtherError = 100
        };

    private:
        friend class THttpCallback;
        friend class THttpClientService;

    public:
        THttpFuture();
        ~THttpFuture() override;
 
        bool HasHttpCode() const;
        bool HasResponseBody() const;
 
        ui32 GetHttpCode() const;
        TString GetResponseBody() const;

        bool HasError() const;
        EError GetErrorCode() const;
        TString GetErrorDescription() const;
 
    private:
        void SetDoneAndSchedule(TAutoPtr<NNeh::TResponse> response);
        void SetFail(EError errorCode, const TStringBuf& errorDescription);

    private:
        TTaskRunnerBase* Task;
        TMaybe<HttpCodes> HttpCode;
        THolder<NNeh::TResponse> Response;
        EError ErrorCode;
        TString ErrorDescription;
    };
 
    class THttpClientService {
    public:
        THttpClientService();
        virtual ~THttpClientService();
 
        void Send(const TString& request, THttpFuture* future);
        void SendPost(TString addr, const TString& data, const THttpHeaders& headers, THttpFuture* future);
 
    private:
        NNeh::IProtocol* const GetProtocol;
        NNeh::IProtocol* const FullProtocol;
    };
 
}