c ++ libcurl - 使用先前curl的响应作为另一个curl的参数

Question

我正在使用C ++ libcurl将数据发送到Web服务，一切正常。我想使用webservice响应（Json）作为参数，在另一个Web服务中创建另一个POST。你们能帮助我吗？非常感谢你

//FIRST POST
curl_easy_setopt(curl, CURLOPT_URL, url1.c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postData.c_str());
curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
std::unique_ptr<std::string> httpResponse1(new std::string());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, httpResponse1.get());
curl_easy_perform(curl);

//SECOND POST
curl_easy_setopt(curl, CURLOPT_URL, url2.c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, httpResponse1);
curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
std::unique_ptr<std::string> httpResponse2(new std::string());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, httpResponse2.get());
curl_easy_perform(curl);

Answer 1

我建议您阅读并根据您需要的公共libcurl示例进行此类工作：

1. 在记忆中收到：getinmemory.c
2. 从内存中POST（并在内存中接收该响应）：postinmemory.c