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If you cannot use the AWS CLI to generate a pre-signed URL, you must calculate the AWS Signature Version 4 (SigV4) yourself, which involves creating a complex Authorization header.
aws s3 presign s3://my-bucket/path/to/private-file.zip --expires-in 3600 Use code with caution. download s3 file using curl
This command generates a URL valid for 1 hour (3600 seconds). If you cannot use the AWS CLI to
If the S3 bucket is private (which is best practice), you cannot access it with a standard curl command. The most secure and easiest method is to generate a using the AWS CLI or SDK, which adds temporary authentication credentials directly to the URL. Step 1: Generate the Pre-signed URL (using AWS CLI) If the S3 bucket is private (which is
If your S3 object is public, downloading it with curl is as simple as downloading any other file on the internet.