Docs Missing Required IAM Permission

[wjkr]

Describe the problem The README should include the sqs:ChangeMessageVisibility IAM permission. This permission is used by the following lines of code:

• https://github.com/bbc/sqs-consumer/blob/v5.6.0/src/consumer.ts#L279
• https://github.com/bbc/sqs-consumer/blob/v5.6.0/src/consumer.ts#L401

To Reproduce

Steps to reproduce the behaviour:

1. Assume an IAM role that has the sqs:ReceiveMessage and sqs:DeleteMessage permissions for the relevant SQS queue, but not the sqs:ChangeMessageVisibility permission.
2. Write code that creates a consumer for the SQS queue. Include a heartbeat interval and a handler that takes longer than that interval to complete (e.g. 30 second interval and handler that sleeps for a minute).
3. Add a message to the queue.
4. Run the code and observe the following error message on the heartbeat interval:

AccessDenied: Access to the resource https://sqs.<region>.amazonaws.com/ is denied.

Expected behaviour

The error is expected, you just need to add the sqs:ChangeMessageVisibility IAM permission.