Event Envelopes and Metadata for Reliable EDA
Learn how event envelopes separate transport context from payload, apply CloudEvents attributes, propagate correlation IDs, and validate messages safely.
Posts tagged with #messaging
Event Security and Sensitive Data in EDA
Secure event-driven systems with least-privilege identities, encrypted transport and payloads, careful data minimization, and a deliberate retention plan.
Partial Failure, Ordering, and Eventual Consistency
Understand partial API failures, message ordering, and eventual consistency, then design status models and recovery paths clients can reason about.
Synchronous Calls, Asynchronous Messaging, and Webhooks
Choose between synchronous APIs, queued messages, and webhooks by matching delivery behavior to latency needs, failure handling, and ownership boundaries.
Dead Letter Queues: Handling Message Failures Gracefully
Design and implement Dead Letter Queues for reliable message processing. Learn DLQ patterns, retry strategies, monitoring, and recovery workflows.
Exactly-Once Delivery: The Elusive Guarantee
Explore exactly-once semantics in distributed messaging - why it's hard, how Kafka and SQS approach it, and practical patterns for deduplication.
Ordering Guarantees in Distributed Messaging
Understand how message brokers provide ordering guarantees, from FIFO queues to causal ordering across partitions, and the trade-offs in distributed systems.
Apache Kafka: Distributed Streaming Platform
Learn how Apache Kafka handles distributed streaming with partitions, consumer groups, exactly-once semantics, and event-driven architecture patterns.
AWS SQS and SNS: Cloud Messaging Services
Learn AWS SQS for point-to-point queues and SNS for pub/sub notifications, including FIFO ordering, message filtering, and common use cases.
Event-Driven Architecture: Events, Commands, and Patterns
Learn event-driven architecture fundamentals: event sourcing, CQRS, event correlation, choreography vs orchestration, and implementation patterns.