Event-driven on AWS serverless, from zero
SQS, Lambda, DynamoDB — a mental model that scales without babysitting.
Serverless gets a reputation for being fiddly. Most of that pain comes from skipping the mental model and reaching straight for the console.
Queues are your shock absorber
A queue between producers and workers turns a spike into a steady drip. SQS in front of Lambda means a flood of events becomes a manageable stream, and a failed message retries instead of vanishing.
- →SQS to absorb and retry
- →Lambda to do one thing well
- →DynamoDB for fast, predictable writes
- →SNS to fan out without coupling
Keep each function single-purpose and idempotent. The system gets boring to operate, which is exactly the goal.
Boring infrastructure is a feature. You want to forget it's running.