AWS S3 createPresignedPost 与 getSignedUrl。我应该使用哪一个从客户端上传各种文件？
AWS S3 createPresignedPost vs getSignedUrl. Which one should I use for uploading various files from client side?
在S3文件中，有createPresignedPost and getSignedUrl.
在 getSignedUrl 上：
Note: Not all operation parameters are supported when using pre-signed
URLs. Certain parameters, such as SSECustomerKey, ACL, Expires,
ContentLength, or Tagging must be provided as headers when sending a
request. If you are using pre-signed URLs to upload from a browser and
need to use these fields, see createPresignedPost().
createPresignedPost 只是更可定制的 getSignedUrl 版本吗？
它在下面做同样的事情吗？
如果你想限制用户上传超过一定大小的文件，你应该使用createPresigendPost，并指定ContentLength
使用 getSignedUrl，没有对象大小限制，用户可以将 5TB 对象（当前对象限制）上传到 s3
注意调用getSignedUrl('putObject',params, callback)时如果可以在params中指定ContentLength
你会被抛出
Presigning post data encountered an error { UnexpectedParameter: ContentLength is not supported in pre-signed URLs.
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在S3文件中，有createPresignedPost and getSignedUrl.
在 getSignedUrl 上：
Note: Not all operation parameters are supported when using pre-signed URLs. Certain parameters, such as SSECustomerKey, ACL, Expires, ContentLength, or Tagging must be provided as headers when sending a request. If you are using pre-signed URLs to upload from a browser and need to use these fields, see createPresignedPost().
createPresignedPost 只是更可定制的 getSignedUrl 版本吗？ 它在下面做同样的事情吗？
如果你想限制用户上传超过一定大小的文件，你应该使用createPresigendPost，并指定ContentLength
使用 getSignedUrl，没有对象大小限制，用户可以将 5TB 对象（当前对象限制）上传到 s3
注意调用getSignedUrl('putObject',params, callback)时如果可以在params中指定ContentLength 你会被抛出
Presigning post data encountered an error { UnexpectedParameter: ContentLength is not supported in pre-signed URLs.
关于这个主题issue