getSignedUrl() - Custom domain name?

[aichholzer]

Question

Consider this request, for example:

params = {
  Bucket: 'myBucket,
  Key: 'image.jpg',
  ContentType: 'image/jpeg',
  Expires: 30
};

S3.getSignedUrl('putObject', params, function (error, url) {
  console.log(url);
});

which outputs: https://myBucket.s3.eu-central-1.amazonaws.com/image.jpg?...

I have created a CNAME; media.domain.com which points to myBucket.s3.eu-central-1.amazonaws.com

The idea here is to be able to provide a customDomain parameter where media.domain.com would be its value. This in order to have getSignedUrl() output https://media.domain.com/image.jpg?...

Just replacing the domain after getSignedUrl() does not work since the actual AWS S3 domain is also used for the signature.

In short; I would like to be able to specify a custom domain for putting objects to my S3 bucket.

Any ideas?

[LiuJoyceC]

Hi @aichholzer
Thanks for your question.
You can set your bucket endpoint when you create your instance of S3: var S3 = new AWS.S3({endpoint: 'media.domain.com', s3BucketEndpoint: true}); Then the url returned from getSignedUrl will be set to the specified endpoint. For a more detailed description of these params, please see the Constructor Details section of the API Docs: http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html

Let me know if you have any further questions.

[aichholzer]

Hey @LiuJoyceC
Thank you for your reply.
It worked, however, I had to do a little more research since the region my bucket is in only supports v4 signatures and signatureVersion must be properly set in the configuration.

http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingAWSSDK.html#specify-signature-version

[nalbion]

@LiuJoyceC #1753 is related, but has extra complexity introduced by a CloudFront path pattern

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