base_connection.hpp

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#ifndef BASE_CONNECTION_HPP_INCLUDED
#define BASE_CONNECTION_HPP_INCLUDED
 
#include <expected>
#include <map>
 
#include <cpp_restapi/iconnection.hpp>
#include "cpp_restapi_export.h"
 
 
namespace cpp_restapi
{
    class CPP_RESTAPI_EXPORT BaseConnection: public cpp_restapi::IConnection
    {
    public:
        explicit BaseConnection(const std::string& address, const std::map<std::string, std::string>& headerEntries);
 
        // -- connection info --
        const std::string& url() const final;
 
        // -- synchronous fetch --
        std::expected<std::string, HttpError> fetch(const std::string& request) final;
        std::expected<std::string, HttpError> fetch(const std::string& request, IPaginationStrategy& strategy) final;
        std::expected<Response, HttpError> fetchResponse(const std::string& url) final;
 
        // -- asynchronous fetch --
        CancellationToken fetch(const std::string& request, FetchCallback onSuccess, ErrorCallback onError = {}) final;
        CancellationToken fetch(const std::string& request, IPaginationStrategy& strategy, BodyCallback onSuccess, ErrorCallback onError = {}) final;
 
        // -- deprecated --
        std::string get(const std::string &) final;
 
        // -- backend interface --
        virtual Response fetchPage(const std::string& request) = 0;
 
    protected:
        virtual void fetchAsync(const std::string& fullUrl,
                                CancellationToken cancel,
                                FetchCallback onSuccess,
                                ErrorCallback onError) = 0;
 
        const std::map<std::string, std::string>& getHeaderEntries() const;
 
        const std::string& address() const;
 
    private:
        const std::string m_address;
        std::map<std::string, std::string> m_headerEntries;
    };
}
 
#endif