继续得到功能错误不确定原因

时间:2015-06-10 08:41:18

标签: android node.js amazon-s3 knox-amazon-s3-client

我不确定我在这里做错了什么...当我尝试使用nodejs上的knox库将视频(multipart)从android上传到AmazonS3时,我一直收到此错误...我也在使用异步库等待在我调用回调之前视频完成上传(cb)下一个函数这是我的错误:

2015-06-10T08:32:27.877193+00:00 app[web.1]:   stream.on('error', fn); 
2015-06-10T08:32:27.877195+00:00 app[web.1]:          ^ 
2015-06-10T08:32:27.877196+00:00 app[web.1]: TypeError: undefined is not a function
2015-06-10T08:32:27.877198+00:00 app[web.1]:     at Client.putStream (/app/node_modules/knox/lib/client.js:448:10)
2015-06-10T08:32:27.877200+00:00 app[web.1]:     at setupAndCreateImage (/app/routes/challenge.js:397:11)
2015-06-10T08:32:27.877201+00:00 app[web.1]:     at fn (/app/node_modules/async/lib/async.js:582:34)
2015-06-10T08:32:27.877202+00:00 app[web.1]:     at Immediate._onImmediate (/app/node_modules/async/lib/async.js:498:34)
2015-06-10T08:32:27.877204+00:00 app[web.1]:     at processImmediate [as _immediateCallback] (timers.js:358:17)

以下是代码:

function setupAndCreateImage ( cb) {
            if(req.files && req.files.mediaFile) {
                console.log("Received file:\n" + JSON.stringify(req.files));

                    //add p for pics will do v for vids
                    videoID = "v" + path.basename(req.files.mediaFile.path);
                    tmp_path = req.files.mediaFile.path;
                    //targetPathSmall = './public/img/challenges/' + videoID;
                    //videoConvert = req.files.mediaFile.name;


                    var video = req.files.mediaFile;
                    var s3Headers = {
                        'Content-Type': video.type,
                        'Content-Length': video.size,
                        'x-amz-acl': 'public-read'
                    };
                            //console.log('stdout:', stdout, targetPathSmall)
                            s3.putStream(tmp_path, videoID, s3Headers, function(err, s3response){
                                //handle, respond
                                if(err) { 
                                    console.log(err);
                                } else {
                                    s3response.resume();
                                    console.log("saved to S3");
                                    //console.log(s3response);
                                    cb(null, videoID);
                                }
                            });
                        } else {
                            videoID = "";
                            cb(null, videoID);
                        }

                    },

1 个答案:

答案 0 :(得分:1)

您将String作为第一个参数传递给s3.putStream,其中包含Stream。

请参阅https://github.com/Automattic/knox/blob/master/lib/client.js#L398

你应该像这样使用它:

s3.putStream(inputStream, videoID, s3Headers, function(err, s3response) {

如果可能,您可以通过阅读inputStream的内容来填充req.mediaFile。从代码中辨别出来并不容易。

祝你好运!