Amazon SQS
Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables decoupling and scaling of microservices, distributed systems, and serverless applications. It allows applications to send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be available. SQS offers two types of message queues: Standard queues for maximum throughput and best-effort ordering, and FIFO queues for exactly-once processing and strict ordering.
Developers should use SQS when building scalable, resilient applications that require asynchronous communication between components, such as in microservices architectures, event-driven systems, or batch processing workflows. It is particularly valuable for decoupling services to improve fault tolerance, handling spikes in traffic without overloading downstream systems, and implementing retry logic for failed operations. Common use cases include order processing in e-commerce, data ingestion pipelines, and task distribution in serverless applications.