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103 lines
3.1 KiB
C++

#ifndef WEBCC_REST_SERVICE_H_
#define WEBCC_REST_SERVICE_H_
// NOTE:
// The design of RestListService and RestDetailService is very similar to
// XxxListView and XxxDetailView in Python Django Rest Framework.
// Deriving from them instead of RestService can simplify your own REST services
// a lot. But if you find the filtered parameters cannot meet your needs, feel
// free to derive from RestService directly.
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "webcc/globals.h"
namespace webcc {
class UrlQuery;
// -----------------------------------------------------------------------------
// Base class for your REST service.
class RestService {
public:
virtual ~RestService() {
}
// Handle REST request, output the response.
// The regex sub-matches of the URL (usually resource IDs) were stored in
// |url_sub_matches|. The |query| part of the URL is normally only for GET
// request. Both the request and response contents are JSON strings.
virtual bool Handle(const std::string& http_method,
const std::vector<std::string>& url_sub_matches,
const UrlQuery& query,
const std::string& request_content,
std::string* response_content) = 0;
};
typedef std::shared_ptr<RestService> RestServicePtr;
// -----------------------------------------------------------------------------
class RestListService : public RestService {
public:
bool Handle(const std::string& http_method,
const std::vector<std::string>& url_sub_matches,
const UrlQuery& query,
const std::string& request_content,
std::string* response_content) final;
protected:
RestListService() = default;
virtual bool Get(const UrlQuery& query, std::string* response_content) {
return false;
}
virtual bool Post(const std::string& request_content,
std::string* response_content) {
return false;
}
};
// -----------------------------------------------------------------------------
class RestDetailService : public RestService {
public:
bool Handle(const std::string& http_method,
const std::vector<std::string>& url_sub_matches,
const UrlQuery& query,
const std::string& request_content,
std::string* response_content) final;
protected:
virtual bool Get(const std::vector<std::string>& url_sub_matches,
const UrlQuery& query,
std::string* response_content) {
return false;
}
virtual bool Put(const std::vector<std::string>& url_sub_matches,
const std::string& request_content,
std::string* response_content) {
return false;
}
virtual bool Patch(const std::vector<std::string>& url_sub_matches,
const std::string& request_content,
std::string* response_content) {
return false;
}
virtual bool Delete(const std::vector<std::string>& url_sub_matches) {
return false;
}
};
} // namespace webcc
#endif // WEBCC_REST_SERVICE_H_