SQS

FIFO queues, dead-letter queues, long polling, batch operations.

fakecloud implements 23 of 23 SQS operations at 100% Smithy conformance.

Supported features

  • Queue management — CRUD, attributes, tags
  • FIFO queues — deduplication, ordering, message group IDs
  • Dead-letter queues — redrive policies, maxReceiveCount enforcement
  • Long polling — WaitTimeSeconds on Receive
  • Batch operations — SendMessageBatch, DeleteMessageBatch, ChangeMessageVisibilityBatch
  • MD5 hashing — body and attribute MD5s returned exactly as AWS does
  • Message retention — expiration via /_fakecloud/sqs/expiration-processor/tick
  • Visibility timeout — ChangeMessageVisibility, per-receive timeout

Protocol

Query protocol. Form-encoded body, Action parameter, XML responses.

Introspection

  • GET /_fakecloud/sqs/messages — list all messages across all queues
  • POST /_fakecloud/sqs/expiration-processor/tick — expire messages past retention
  • POST /_fakecloud/sqs/{queue_name}/force-dlq — force-move messages exceeding maxReceiveCount to DLQ

Cross-service delivery

  • SQS -> Lambda — Event source mapping polls and invokes

Source