Integration and Messaging

When we start deploying multiple applications, they will inevitably need to communicate with one another

• There are two patterns of application communication
  • Synchronous communication
    • Direct application to application
    • Synchronous between applications can be problematic if there are sudden spikes of traffic
  • Asynchronous / Event based communication
    • application to queue to application
• Decouple your applications:
  • SQS: queue model
  • SNS: pub/sub model
  • Kinesis: real-time streaming model
• These services can scale independently from your application