AmazonSQSClient get number of messages in FIFO queue group

Question

I'm trying to determine if it's possible to use the AmazonSQSClient to get the number of messages in an AWS FIFO queue group (messages with a specific MessageGroupId).

I have already looked at some docs: https://docs.aws.amazon.com/sdkfornet/v3/apidocs/items/SQS/TSQSClient.html

The docs hint that I might be able to do what I want with the GetQueueAttributes method... although it isn't clear. I want to do this within a Lambda function.

Is this possible?

Answer 1

I think the only way this would be possible would be to get the messages using ReceiveMessage and then count the number of objects in it in code. I don't think you can "inspect" a message group as such. I believe you can only pull 10 at a time as well so there is that to consider.

GetQueueAttributes will give you details on the queue not the messages or groups within it.