如何在 Node js 中发送 POST 请求文件 Content-Type: application/octet-stream

Question

我正在尝试将内容上传到 facebook 的服务器。他们的官方文档指出：

With the token from the dialog, you can submit the following call to our Graph API to submit your .zip. Note that we are using the video sub-domain, but that's intentional, since that URL is configured to receive larger uploads.

curl -X POST https://graph-video.facebook.com/{App ID}/assets 
  -F 'access_token={ASSET UPLOAD ACCESS TOKEN}' 
  -F 'type=BUNDLE' 
  -F 'asset=@./{YOUR GAME}.zip' 
  -F 'comment=Graph API upload'

我正在尝试使用 request 模块将此 curl 请求转换为 node.js。

            const myzip = zipDir+file.appName+".zip"
            console.log(myzip)
            var url = "https://graph-video.facebook.com/"+file.appId+"/assets";
            const options = {
                url: url,
                headers: {
                  "Content-Type": "application/octet-stream"
                }
              }
            var req = request.post(options, function (err, resp, body) {
                console.log('REQUEST RESULTS:', err, resp.statusCode, body);
                if (err) {
                   console.log('Error!');
                  reject();
                } else {
                   console.log('URL: ' + body);
                  resolve();
                }
              });
              var form = req.form();
              var zipReadStream = fs.createReadStream(myzip,{encoding: "binary"})
              zipReadStream.setEncoding('binary')
              form.append('asset', zipReadStream);
              form.append("access_token", file.token);
              form.append("type", "BUNDLE");
              form.append("comment", mycomment)

尽管我已将 headers 设置为 "Content-Type": "application/octet-stream" ，但我仍然从 facebook 收到错误

OAuth "Facebook Platform" "invalid_request" "(#100) Invalid file. Expected file of one of the following types: application/octet-stream"

此外，当我尝试记录我的请求时，我得到的内容是 'Content-Type': 'multipart/form-data 而不是 application/octet-stream 事件，尽管我已经明确指定了这一点。

Answer 1

如果您将数据作为表单的一部分上传，则必须使用 multipart/form-data 作为您的 Content-Type。

可以为每个文件设置表单上特定文件的 Content-Type，但 Facebook 似乎不想要为此额外的数据。

不要为您的 HTTP 请求设置 Content-Type，您应该没问题，因为请求模块会为您设置它。此外，您可以在此处找到文档：https://github.com/request/request#multipartform-data-multipart-form-uploads

如何在 Node js 中发送 POST 请求文件 Content-Type: application/octet-stream

How to send a POST request a file with Content-Type: application/octet-stream in Node js

node.js

request

mime-types

content-type