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Andrew Herendeen

Integrations & Data Pipelines: Practical Patterns for Reliable Flows


Integrations and data pipelines are where systems talk to each other — and where most production surprises happen. This post gives practical, production-tested patterns.

Design goals

  • Idempotency: retry safely without duplicate side effects.
  • Observability: ensure every message can be traced.
  • Resilience: handle upstream and downstream failures gracefully.

Patterns

  • Event-driven ingestion: use durable queues (SQS, Pub/Sub) and process messages with checkpointing.
  • Schema evolution: use typed schemas (JSON Schema/avro) and contract tests.
  • Backfill strategy: design incremental replays and partitioned reprocessing.

Example pipeline: webhook -> queue -> idempotent worker

  1. Receive webhook, persist raw event to object store, enqueue event ID.
  2. Worker picks up ID, fetches raw payload (ensure idempotency key), transforms and validates.
  3. Write to analytic store and emit success/failure events.

This makes retries inexpensive and traceable.

Tooling choices

  • For lightweight work: webhook receivers + serverless functions.
  • For heavier ETL: Airbyte, Prefect, Dagster, or lightweight dataflows using managed services.

Monitoring and SLAs

  • Build small dashboards: throughput, error rates, and lag metrics.
  • Configure alerts for rising error ratios or processing backlogs.

Example implementation

  • Use a webhook receiver that writes raw events to S3 and enqueues the id in SQS.
  • Workers process by pulling from SQS, validating against JSON Schema, and upserting to the analytics table.
  • Add a daily backfill job that scans S3 for unprocessed events and replays them idempotently.

Need a concrete playbook for your stack? I can add templates for Zapier/Make flows, serverless handlers, or a small Dagster pipeline.

Want a tailored playbook? Contact me to scope a short engagement or see related work in the showcase.