节点Libcurl(node-libcurl)-多部分/表单数据请求出现问题

我有一个特别顽固的API，我只能使用下面的curl请求：
curl --request PUT -H "Content-Type: multipart/form-data" -H "Authorization: Bearer abcd" -F functionConfig='{"parallelism":2};type=application/json' http://test-pulsar:8080/admin/v3/functions/test/ingest/test-entity-FeedTransformer
下面是--libcurl的输出

#include <curl/curl.h>

int main(int argc, char *argv[])
{
  CURLcode ret;
  CURL *hnd;
  curl_mime *mime1;
  curl_mimepart *part1;
  struct curl_slist *slist1;

  mime1 = NULL;
  slist1 = NULL;
  slist1 = curl_slist_append(slist1, "Content-Type: multipart/form-data");
  slist1 = curl_slist_append(slist1, "Authorization: Bearer abcd");

  hnd = curl_easy_init();
  curl_easy_setopt(hnd, CURLOPT_BUFFERSIZE, 102400L);
  curl_easy_setopt(hnd, CURLOPT_URL, "http://test-pulsar.com:8080/admin/v3/functions/test/ingest/test-entity-FeedTransformer");
  curl_easy_setopt(hnd, CURLOPT_NOPROGRESS, 1L);
  mime1 = curl_mime_init(hnd);
  part1 = curl_mime_addpart(mime1);
  curl_mime_data(part1, "{\"parallelism\":2}", CURL_ZERO_TERMINATED);
  curl_mime_name(part1, "functionConfig");
  curl_mime_type(part1, "application/json");
  curl_easy_setopt(hnd, CURLOPT_MIMEPOST, mime1);
  curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, slist1);
  curl_easy_setopt(hnd, CURLOPT_USERAGENT, "curl/7.79.1");
  curl_easy_setopt(hnd, CURLOPT_MAXREDIRS, 50L);
  curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, (long)CURL_HTTP_VERSION_2TLS);
  curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "PUT");
  curl_easy_setopt(hnd, CURLOPT_FTP_SKIP_PASV_IP, 1L);
  curl_easy_setopt(hnd, CURLOPT_TCP_KEEPALIVE, 1L);

  /* Here is a list of options the curl code used that cannot get generated
     as source easily. You may select to either not use them or implement
     them yourself.

  CURLOPT_WRITEDATA set to a objectpointer
  CURLOPT_INTERLEAVEDATA set to a objectpointer
  CURLOPT_WRITEFUNCTION set to a functionpointer
  CURLOPT_READDATA set to a objectpointer
  CURLOPT_READFUNCTION set to a functionpointer
  CURLOPT_SEEKDATA set to a objectpointer
  CURLOPT_SEEKFUNCTION set to a functionpointer
  CURLOPT_ERRORBUFFER set to a objectpointer
  CURLOPT_STDERR set to a objectpointer
  CURLOPT_HEADERFUNCTION set to a functionpointer
  CURLOPT_HEADERDATA set to a objectpointer

  */

  ret = curl_easy_perform(hnd);

  curl_easy_cleanup(hnd);
  hnd = NULL;
  curl_mime_free(mime1);
  mime1 = NULL;
  curl_slist_free_all(slist1);
  slist1 = NULL;

  return (int)ret;
}

我相信我被难住的主要部分是如何转换以下内容：

curl_mime_data(part1, "{\"parallelism\":2}", CURL_ZERO_TERMINATED);
curl_mime_name(part1, "functionConfig");
curl_mime_type(part1, "application/json");

我尝试过的：

curl.setOpt(Curl.option.HTTPPOST, [
  {
    name: "functionConfig",
    contents: '{"parallelism":1};type=application/json',
  },
]);

但api服务器无法识别functionConfig
{"reason":"Function config is not provided"}个
如何化解？

node-libcurl作者在这里。我将张贴相同的答案，我张贴在原来的问题：curl mime API不可用，请参阅https://github.com/JCMais/node-libcurl/issues/112了解功能请求。
您可以使用的是HTTPPOST选项（该选项已被弃用，但仍在使用）。
应该是这样的：

curl.setOpt(Curl.option.HTTPPOST, [
    { name: 'functionConfig', contents: '{"parallelism":2}'}
]);

在上面的例子中，您确实丢失了content-type。如果这对您正在使用的服务器很重要，那么设置它的唯一方法是将数据保存到一个临时文件中，并将该文件用作数据源：

curl.setOpt(Curl.option.HTTPPOST, [
    { name: 'functionConfig', file: '/path-to-temp-file', type: 'application/json' }
]);

如果不行就告诉我。

节点Libcurl(node-libcurl)-多部分/表单数据请求出现问题

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