Instagramの猫画像クローラ crawl_instagram.cpp

crawl_instagram.cpp

#include <fstream>
#include <iostream>
#include <string>

#include <restclient-cpp/restclient.h>

#include "json11.hpp"

static std::string client_id = "クライアントID";
static std::string endpoint = "https://api.instagram.com/v1/tags/cat/media/recent?client_id=" + client_id;

int main()
{
  auto res = RestClient::get(endpoint);

  std::string err;
  auto json = json11::Json::parse(res.body, err);
  if(!err.empty())
  {
    std::cout << err << std::endl;
    return 1;
  }

  auto data = json["data"].array_items();
  for(auto& item : data)
  {
    auto id = item["id"].string_value();
    auto url = item["images"]["standard_resolution"]["url"].string_value();
    std::cout << url << std::endl;

    auto raw = RestClient::get(url);
    std::ofstream out(id + ".jpg");
    out << raw.body;
    out.close();
  }

  return 0;
}