How to stream a presigned video from an AWS S3 bucket?

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When generating a presigned video URL from AWS S3 bucket the video will download in mp4 format if I use the URL in the web browser , however, it will not stream if I put it in the src attribute of a video tag. Below is an example of what the presigned url looks like. How can I use this url to stream?

<video width="320" height="240" controls preload="auto">
  <source src="https://s3.eu-north-1.amazonaws.com/daycare.videos/iland-guard/yamit/2020-12-09/cam_0/20201209_043123.mp4?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIA6OHOPCC5DWJXXO7O%2F20210309%2Feu-north-1%2Fs3%2Faws4_request&X-Amz-Date=20210309T075948Z&X-Amz-Expires=900&X-Amz-Signature=1cfb2dc7658b90714cd5b52b157f3caf878be6504a4d5f9d1a1be76a599abae8&X-Amz-SignedHeaders=host" type="video/mp4">
</video>
mp4 amazon-web-services video amazon-s3 streaming
2 Answers

To test this, I did the following:

  • Put an .mp4 file in an Amazon S3 bucket (no Bucket Policy, no ACL)
  • Generated a pre-signed url using the AWS CLI aws s3 presign command
  • Tested the pre-signed URL by pasting it into a browser Address Bar -- it worked
  • Substituted the pre-signed URL in your code (above) -- it worked

I did have a strange problem with a space in the filename -- I had to quote the path for the AWS CLI to include the raw space rather than using a + to represent the space.

The pre-signed URL that was generated looked like this:

https://bucketname.s3.amazonaws.com/A2%20File.mp4?AWSAccessKeyId=AKIAxxx&Signature=xxx&Expires=1615413373

I see that it uses a different format to the one presented in your question.

user_1747770

I replicated above, using the Node library. The code seems to work fine. The key thing to make sure is whether the presigned URL works when placed in your browser. The SDK generates a URL regardless of whether the file exists or not, so make sure the presigned URL is actually functioning.

The format of my presigned URL matches that of yours:

<video width="320" height="240" controls preload="auto">
    <source src="https://bucket.s3.ca-central-1.amazonaws.com/Glass%20one/2e71b368-1d22-4c56-a690-b534eea3def8.mp4?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIAQOTARPS7GGSVO5F7%2F20210915%2Fca-central-1%2Fs3%2Faws4_request&X-Amz-Date=20210915T223104Z&X-Amz-Expires=3600&X-Amz-Signature=f61fc82b7ebd55ea83290587786d61fe41cb6137624d243bf36c46257ef2aab6&X-Amz-SignedHeaders=host&x-id=GetObject" type="video/mp4">
  </video>
user_169229240
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