Question 1

How do I process messages in parallel with sqs-consumer?

Accepted Answer

Use the batchSize option in ConsumerOptions along with handleMessageBatch to process multiple messages concurrently. Ensure your handler correctly returns message arrays for acknowledgment, as detailed in the batch processing section of the README.

Question 2

What's the best way to handle graceful shutdowns in sqs-consumer?

Accepted Answer

Set pollingCompleteWaitTimeMs to allow time for in-flight messages, listen for events like 'waiting_for_polling_to_complete', and call consumer.stop() without abort: true. The README provides a code example for handling signals like SIGINT and SIGTERM.

Question 3

SQS Consumer or AWS SDK: which is better for my project?

Accepted Answer

SQS Consumer is better for rapid development with built-in reliability features like error handling and shutdowns. Use the AWS SDK directly if you need full, low-level control over SQS interactions or have unique requirements beyond the library's abstraction.

Question 4

How do I configure dead-letter queue integration with sqs-consumer?

Accepted Answer

The library doesn't directly configure dead-letter queues; instead, it leaves messages on the queue when errors are thrown. Set up an SQS redrive policy on your queue to move failed messages to a dead-letter queue after retries, as mentioned in the error handling section.

Question 5

Can I update options like polling wait time dynamically in sqs-consumer?

Accepted Answer

Yes, use the consumer.updateOption(option, value) method. However, changes to pollingWaitTimeMs only take effect on the next polling cycle, which is a limitation noted in the API documentation.

Question 6

Does sqs-consumer work with FIFO queues in production?

Accepted Answer

Not reliably tested; the library warns that FIFO support is untested and may not maintain ordering guarantees. For production-critical FIFO use, consider thorough testing or alternative solutions, and use suppressFifoWarning: true to hide warnings if needed.

sqs-consumer

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