使用S3 .NET客户端中的条件开始
我正在与S3 .NET客户端合作，并且我能够得到一个预先签名的URL（我遵循本教程在线）。我想让用户仅将其文件存储在特定路径中（例如，进入'testTest/'文件夹）。
如另一个堆栈Frows 使用：
Conditions=[["starts-with", "$key", "uploads/"]]
我正在使用.NET S3客户端，实际上似乎无法设置此条件。 您有一个想法如何设置“开始”选项？
我尝试使用以下几行中显示的“参数”而没有成功。
< !--language - all: cs-- >
GetPreSignedUrlRequest request1 = new GetPreSignedUrlRequest
{
BucketName = _BucketName,
Key = key,
Expires = expiryTime,
Verb = HttpVerb.PUT
};
request1.Parameters.Add("Conditions", "[\"starts-with\", \"testtest/\"]"); // <== THIS LINE
I'm working with the S3 .net client and I'm perfectly able to get a presigned url (I followed this tutorial online). I would like to let the user to store their files in a specific path only (for example into the 'testtest/' folder).
As explained also here in another StackFlow thread, is possible to use:
Conditions=[["starts-with", "$key", "uploads/"]]
I'm using the .net S3 client and actually seems that there is no way to set this condition.
Do you have an idea how to set "starts-with" option?
I tried to use the "parameters" as show in the following lines without success.
< !--language - all: cs-- >
GetPreSignedUrlRequest request1 = new GetPreSignedUrlRequest
{
BucketName = _BucketName,
Key = key,
Expires = expiryTime,
Verb = HttpVerb.PUT
};
request1.Parameters.Add("Conditions", "[\"starts-with\", \"testtest/\"]"); // <== THIS LINE
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看来您有正确的想法，但是您的病情无效。条件实际上是一系列条件，
启动与需要知道要看什么，因此类似的事情应该有效：这是否实际上有帮助。似乎最好的做法是在上传之前，在每个文件（键）上获取一个签名的URL。
It looks like you had the right idea, but your condition was not valid. Conditions is actually an array of conditions, and
starts-withneeds to know what to look at, so something like this should work:Whether or not this actually helps is somewhat debatable. It seems the best practice is to get a signed URL for each file (key) before uploading against it.