上传帆布数据S3 [英] upload canvas data to s3

问题描述

现在，因为亚马逊已经启用 CORS 我在想，如果这是可能的。

Now since the amazon has enabled CORS I was wondering if this is possible.

可以在HTML 画布数据（客户端浏览器）转换为的东西并上传到直接S3？

Can the html canvas data (on client browser) be converted to a something and uploaded to s3 directly ?

我相信，我可以做一个 PUT 要求亚马逊但是这需要一个文件。

I am sure I can make a PUT request to amazon but that requires a File .

我能获得的base64 连接codeD图像数据，甚至是的Blob 但有一种方式来这是将图像保存到 S3 从客户端浏览器？

I can get base64 encoded image data or even a Blob but is there a way to save this as an image to S3 from the client browser ?

有没有一种方法来转换画布到文件，这样我可以做一个 PUT 请求或方式，亚马逊理解的Blob ，并将其保存为图像？

Is there a way to convert canvas to File so that I can make a PUT request or a way that amazon understands Blob and saves it as an image ?

推荐答案

有一个老帖子方法从浏览器数据上传到S3

There is an old post method to upload data from browser to s3

http://s3.amazonaws.com /doc/s3-example-$c$c/post/post_sample.html

然后我用这个想法 <一href="http://stackoverflow.com/questions/4998908/convert-data-uri-to-file-then-append-to-formdata">Convert数据URI到文件，然后附加到FORMDATA

和，而不是正常的 POST 有可能与FORMDATA亚马逊的XHR请求，就大功告成了。

and instead of normal POST there can be an xhr request with the formdata to amazon and you are done

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