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AWS Polly InvalidS3UriException

The specified S3 URI is not valid.

Understanding AWS Polly

AWS Polly is a cloud service that converts text into lifelike speech, allowing developers to create applications that can talk. It is part of the suite of Voice AI APIs offered by Amazon Web Services, designed to enhance user interaction through voice.

Identifying the Symptom: InvalidS3UriException

When using AWS Polly, you might encounter the InvalidS3UriException error. This error typically appears when attempting to use an S3 URI that Polly cannot process, often due to an incorrect format.

Exploring the Issue: What is InvalidS3UriException?

The InvalidS3UriException is an error code indicating that the S3 URI provided to AWS Polly is not valid. This can happen if the URI does not adhere to the expected format or if there are typographical errors in the URI string.

Common Causes of InvalidS3UriException

  • Incorrect bucket name or object key in the URI.
  • Missing or extra slashes in the URI.
  • Typographical errors in the URI string.

Steps to Fix the InvalidS3UriException

To resolve this issue, follow these steps:

Step 1: Verify the S3 URI Format

Ensure that your S3 URI follows the correct format: s3://bucket-name/object-key. Double-check the bucket name and object key for any typos or incorrect characters.

Step 2: Check Bucket and Object Permissions

Make sure that the AWS Identity and Access Management (IAM) permissions are correctly set for the bucket and object. The IAM role or user should have the necessary permissions to access the specified S3 bucket and object.

Step 3: Use AWS CLI to Validate the URI

Use the AWS Command Line Interface (CLI) to list the contents of your bucket and verify the object key. Run the following command:

aws s3 ls s3://your-bucket-name/

This command will list all objects in the specified bucket, allowing you to confirm the correct object key.

Additional Resources

For more information on AWS Polly and handling S3 URIs, consider visiting the following resources:

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