流直接用户上传到Amazon S3 [英] Stream that user uploads directly to Amazon s3
问题描述
我一直挣扎在过去的几天里得到这个工作。
I have been struggling in the last few days to get this working.
基本上我有一个HTML表单，有一个 TYPE =文件输入。
Basically I have a form in HTML that has a type="file" input.
我想，这个文件发送到nodejs，并直接传输到亚马逊的S3。就这样，我会在我的服务器上使用更少的存储空间（想象一下，如果100人上传1G，在结束我的服务器将有100克），所以如果我流，我将只占据内存的时间一点点量
I would like that this file is sent to nodejs and directly streamed to Amazon s3. In this way I will use less storage on my server (imagine if 100 people upload 1g, at the end my server will have 100g), so if I stream I will occupy just memory for a little amount of time
有关如何使用前preSS做任何提示？
Any hint on how to do this with express?
推荐答案
我不能确定，如果你正在寻找一个CORS方法，即用户直接上传到您的S3存储或方法在您使用前preSS作为一个中间人。
I am unsure if you're looking for a CORS approach, where the user uploads directly to your S3 bucket, or an approach where you use express as a middle-man.
如果你正在寻找一个CORS的方法（这也是我建议，除非你正在做什么特殊的事情之前，它被放置在S3中不能做客户端的文件），这应该帮助你：<一HREF =http://bencoe.tumblr.com/post/30685403088/browser-side-amazon-s3-uploads-using-cors rel="nofollow">http://bencoe.tumblr.com/post/30685403088/browser-side-amazon-s3-uploads-using-cors
If you're looking at a CORS approach (which I would recommend unless you are doing anything special with the file before it gets put in S3 that can't be done client side), this should help you out: http://bencoe.tumblr.com/post/30685403088/browser-side-amazon-s3-uploads-using-cors
如果您计划使用您的服务器作为中间点（即上传到自己的服务器上，然后上传从您的服务器到S3），我听到好东西诺克斯（的 https://github.com/LearnBoost/knox ）。我与它周围的发挥，但还没有实际使用它，因为我倾向于使用CORS方法。
If you are planning to use your server as a mid-point (ie, upload to your server, then upload from your server to S3), I have heard good things about Knox (https://github.com/LearnBoost/knox). I've played around with it, but haven't actually used it as I tend to use CORS approaches.
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