为什么我的S3上传无法正确上传？

Question

我使用以下格式上传的图片文件：

var body = fs.createReadStream(tempPath).pipe(zlib.createGzip()); 
var s3obj = new AWS.S3({params: {Bucket: myBucket, Key: myKey}}); 
var params = { 
    Body: body, 
    ACL: 'public-read', 
    ContentType: 'image/png' 
}; 

s3obj.upload(params, function(err, data) { 
    if (err) console.log("An error occurred with S3 fig upload: ", err); 
    console.log("Uploaded the image file at: ", data.Location); 
}); 

图像成功上传到我的S3桶（有没有错误消息，我看到它在S3游戏机），但是当我尝试显示它在我的网站上，它返回一个破碎的img图标。当我使用S3控制台文件下载器下载图像时，我无法打开文件“损坏或损坏”的错误。

如果我使用S3控制台手动上传文件，我可以在我的网站上正确显示它，所以我很确定我上传的方式有问题。

什么问题？

Answer 1

我终于找到了答案，我的问题。我需要发布一个参数，因为该文件是gzip'd（使用var body = ... zlib.createGzip()）。这解决了我的问题：

var params = { 
    Body: body, 
    ACL: 'public-read', 
    ContentType: 'image/png', 
    ContentEncoding: 'gzip' 
}; 

Answer 2

即使世界一个非常好的节点模块s3-upload-stream上传（和第一压缩）图像S3，这里是他们的示例代码这是非常有据可查：

var AWS  = require('aws-sdk'), 
    zlib  = require('zlib'), 
    fs  = require('fs'); 
    s3Stream = require('s3-upload-stream')(new AWS.S3()), 

// Set the client to be used for the upload. 
AWS.config.loadFromPath('./config.json'); 
// or do AWS.config.update({accessKeyId: 'akid', secretAccessKey: 'secret'}); 

// Create the streams 
var read = fs.createReadStream('/path/to/a/file'); 
var compress = zlib.createGzip(); 
var upload = s3Stream.upload({ 
    "Bucket": "bucket-name", 
    "Key": "key-name" 
}); 

// Optional configuration 
upload.maxPartSize(20971520); // 20 MB 
upload.concurrentParts(5); 

// Handle errors. 
upload.on('error', function (error) { 
    console.log(error); 
}); 

/* Handle progress. Example details object: 
    { ETag: '"f9ef956c83756a80ad62f54ae5e7d34b"', 
    PartNumber: 5, 
    receivedSize: 29671068, 
    uploadedSize: 29671068 } 
*/ 
upload.on('part', function (details) { 
    console.log(details); 
}); 

/* Handle upload completion. Example details object: 
    { Location: 'https://bucketName.s3.amazonaws.com/filename.ext', 
    Bucket: 'bucketName', 
    Key: 'filename.ext', 
    ETag: '"bf2acbedf84207d696c8da7dbb205b9f-5"' } 
*/ 
upload.on('uploaded', function (details) { 
    console.log(details); 
}); 

// Pipe the incoming filestream through compression, and up to S3. 
read.pipe(compress).pipe(upload);