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VK

VK API Lib - небольшая библиотека для работы с vk.com API, написанная на чистом C++. Из зависимостей требуется только Curl. Библиотека предоставляет базовый класс VK::Client, с методами авторизации и выполнения запросов к API.

Есть поддержка:

  • Обработки капчи

  • Двух-факторной авторизации

На основе его Вы можете создавать свои классы для работы с разделами, для примера приведен класс VK::Messages.

Базовый пример использования:

#include "src/api.h"
...
VK::Client api;
if(api.auth(login, pass, access_token)){
  cout << "Auth ok" << endl;
  cout << "Access token: " << api.access_token() << endl << endl;  
  cout << api.call("wall.post", "owner_id=12345&message=Test");
}
else{
  cout << "Auth fail" << endl;
}

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vk's Issues

Ошибка компоновки в Visual Studio 2019

Библиотека libcurl подключена.пример работает.

Ошибка LNK2001 неразрешенный внешний символ ""public: virtual bool __cdecl VK::Attachment::User::parse(class nlohmann::basic_json<class std::map,class std::vector,class std::basic_string<char,struct std::char_traits,class std::allocator >,bool,__int64,unsigned __int64,double,class std::allocator,struct nlohmann::adl_serializer> const &)" (?parse@User@Attachment@VK@@UEAA_NAEBV?$basic_json@Vmap@std@@vvector@2@V?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@2@_N_J_KNVallocator@2@Uadl_serializer@nlohmann@@@nlohmann@@@z)"

Ошибка LNK2001 неразрешенный внешний символ ""public: __cdecl VK::Client::Client(class std::basic_string<char,struct std::char_traits,class std::allocator >,class std::basic_string<char,struct std::char_traits,class std::allocator >,class std::basic_string<char,struct std::char_traits,class std::allocator > (__cdeclconst)(class std::basic_string<char,struct std::char_traits,class std::allocator > const &),class std::basic_string<char,struct std::char_traits,class std::allocator > (__cdeclconst)(void))" (??0Client@VK@@qeaa@V?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@0Q6A?AV23@AEBV23@@ZQ6A?AV23@XZ@Z)"

Ошибка LNK1120 неразрешенных внешних элементов: 2

License

Please provide license file, or just mention license type in readme, please. Describing at least basic terms of use will also be great.

Library shows a lot of errors

Hello there, when I tried to write this code

#include <iostream>
#include "VKA/src/api.h"

int main(int argc, char *argv[]) {
    VK::Client api;
    return 0;
}

I got an error

"C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\ncinsli\AppData\Local\Temp\ccuocYco.o:main.cpp:(.text+0xa9): undefined reference to `VK::Client::Client(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > (*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > (*)())'
C:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\ncinsli\AppData\Local\Temp\ccuocYco.o:main.cpp:(.rdata$.refptr._ZTVN2VK10Attachment4UserE[.refptr._ZTVN2VK10Attachment4UserE]+0x0): undefined reference to `vtable for VK::Attachment::User'
collect2.exe: error: ld returned 1 exit status"


The more functionality of library I use, the more errors I get. What do I need to do? 

Назначение функций

Здравствуйте!

В вашем коде в пространстве имен VK, в класс Utils есть функции urlencode, char2hex, CURL_WRITER. Расскажите, пожалуйста, для чего нужны эти функции.

json.hpp вылетает

json.hpp:8190: nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl::reference nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl::operator*() const [with U = nlohmann::basic_json<>; ObjectType = std::map; ArrayType = std::vector; StringType = std::__cxx11::basic_string; BooleanType = bool; NumberIntegerType = long int; NumberUnsignedType = long unsigned int; NumberFloatType = double; AllocatorType = std::allocator; JSONSerializer = nlohmann::adl_serializer; nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl::reference = nlohmann::basic_json<>&]: Assertion `m_it.array_iterator != m_object->m_value.array->end()' failed.
Аварийный останов (стек памяти сброшен на диск)

Как заставить json.hpp работать?

[Вопрос] Разбор кода

Здравствуйте!

В файле api.cpp, в методе auth есть фрагмент кода.

if(jres.find("error") == jres.end() ||
    jres.find("access_token") != jres.end())
{
    this->a_t = jres.at("access_token").get<string>();
    this->user.user_id = jres.at("user_id").get<size_t>();

...

Какова его функция?

Можно ли считать раз request возвращается пустое значение, значит, что у пользователя отсутствует интернет подключение? (Ниже)

string res = request(url, data);
if(res.empty()){
    return false;
}

Для чего служит check_access? Я могу предположить для проверки успешности аутентификации

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