C ++ REST SDK卡萨布兰卡Client.request [英] C++ REST SDK Casablanca Client.request

问题描述

我想编写一个小c ++程序，该程序将请求发送到服务器并获取一些数据。我找到了C ++ Rest-SDK并决定使用它。我在不同的网站上搜索了代码示例，但其中许多都无法正常运行，并且显示语法错误。我现在得到的是该代码，但是跳过了client.request方法。该程序永远不会跳进来。希望有人能意识到问题并可能解释我必须更改的内容。

I want to write a little c++ program that sends a request to a server an get some data. I found the C++ Rest-SDK and decided to use it. I searched on different websites for code-examples but many of them doesn't work an shows syntax errors. What i got now is that code but the client.request method is skipped. The program never jumps in. Hope someone can realise the problem and maybe explain what i have to change.

#include <Windows.h>
#include <iostream>
#include <sstream>
#include <string>
#include "cpprest/containerstream.h"
#include "cpprest/filestream.h"
#include "cpprest/http_client.h"
#include "cpprest/json.h"
#include "cpprest/producerconsumerstream.h"
#include "cpprest/http_client.h"
#include <string.h>
#include <conio.h>

using namespace std;
using namespace web;
using namespace web::json;
using namespace web::http;
using namespace web::http::client;
using namespace utility;
using namespace utility::conversions;


int main() {

  http_client client(L"http://httpbin.org/ip");

  client.request(methods::GET).then([](http_response response)
  { 
    if(response.status_code() == status_codes::OK)
    {
      auto body = response.extract_string().get();    
      std::wcout << body;
      getch();
    }
  });


  return 0;
}

推荐答案

您的程序运行到最后 main 并终止。您需要在 then 调用后添加 wait ：

Your program runs off the end of main and terminates. You need to add wait after the then call:

client.request(methods::GET).then([](http_response response)
{ 
    // ...
}).wait();

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