AWS Messaging: SQS, SNS, Kinesis, and Amazon MQ
Once an app grows past a single service, the pieces need to talk to each other — but you don’t want them tightly coupled. AWS’s messaging services are the glue: they let one part of your app hand off work or events to another without either side having to know much about the other. The mental map ┌─────────────────────────────────────────────────────────┐ │ PATTERN 1: One-to-one (queue) │ │ • SQS (producer → queue → one consumer) │ ├─────────────────────────────────────────────────────────┤ │ PATTERN 2: One-to-many (pub/sub) │ │ • SNS (publisher → topic → many subscribers) │ ├─────────────────────────────────────────────────────────┤ │ PATTERN 3: Real-time data streams │ │ • Kinesis (continuous data → process → store) │ ├─────────────────────────────────────────────────────────┤ │ PATTERN 4: Industry-standard protocols │ │ • Amazon MQ (managed RabbitMQ/ActiveMQ for migration)│ └─────────────────────────────────────────────────────────┘ SQS — Simple Queue Service SQS is a managed message queue....