json_utils.hpp

// Helper functions for rapidjson elements
 
#ifndef EILE_MIT_WEILE_JSON_UTILS_HPP
#define EILE_MIT_WEILE_JSON_UTILS_HPP
 
#include <string>
 
#include "rapidjson/writer.h"
#include "rapidjson/document.h"
#include "rapidjson/stringbuffer.h"
 
class json_utils {
public:
    static std::string ToString(const rapidjson::Value* json) {             
        rapidjson::StringBuffer buffer;
        buffer.Clear();
        rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
        json->Accept(writer);
        return buffer.GetString();
    }
 
    // In case you need to create a rapidjson::Document on the heap (pointer) based on a value extracted from a json.
    static rapidjson::Document* CloneValue(const rapidjson::Value& val) {  
        auto* state_json = new rapidjson::Document(rapidjson::kObjectType);
        state_json->CopyFrom(val, state_json->GetAllocator());
        return state_json;
    }
 
};
#endif //EILE_MIT_WEILE_JSON_UTILS_HPP