helpers.hpp

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#pragma once
 
/// @file userver/storages/secdist/helpers.hpp
/// @brief Secdist JSON parsing helper functions
 
#include <string>
 
#include <userver/compiler/demangle.hpp>
#include <userver/formats/json/value.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace storages::secdist {
 
[[noreturn]] void ThrowInvalidSecdistType(const formats::json::Value& val, std::string_view type);
 
std::string GetString(const formats::json::Value& parent_val, std::string_view name);
 
int GetInt(const formats::json::Value& parent_val, std::string_view name, int dflt);
 
template <typename T>
T GetValue(const formats::json::Value& parent_val, std::string_view key, const T& dflt) {
    const auto& val = parent_val[key];
    try {
        return val.template As<T>(dflt);
    } catch (const formats::json::TypeMismatchException&) {
        ThrowInvalidSecdistType(val, compiler::GetTypeName<T>());
    }
}
 
void CheckIsObject(const formats::json::Value& val, std::string_view name);
 
void CheckIsArray(const formats::json::Value& val, std::string_view name);
 
}  // namespace storages::secdist
 
USERVER_NAMESPACE_END