handleMessageBatch - individually acknowledging/deleting upon success

[walshe]

Question
If I set batchSize to 10, so that I can receive more than one message, how can I individually checkpoint each message so that if message #9 fails I don't end up having to reprocess the forst 8 again ?

screenshots

Additional context
I want to add more throughput to my consumer by using handleMessageBatch. However I want to be able to acknowledge successful processing of messages individually in case there is a failure processing one of the messages in the batch

[guizoxxv]

I had the same doubt. Looking at the code this is not possible but it would be a nice feature.

Meanwhile my solution was to manually delete the processed messages inside handleMessageBatch it one fails.

Here is a gist with an example.

[efiShtain]

@guizoxxv I've added a pull request to support partial batch ack by returning an array of successful messages from handleMessageBatch

you can try and see if it works for you

#255

[nicholasgriffintn]

#255 has been merged and will be released when the library is next published, which may be after Christmas.