Rate-Limited Reminder Recovery: Idempotent Queues After Webhook and Email Send Failures
Short answer: put each user reminder on a queue, make the consumer idempotent, retry transient delivery failures with backoff, and move exhausted wo…
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Digest Guarantees: How to Choose Public HTTPS Webhook Push, Subscribe, or Polling
Short answer: for a small edtech SaaS sending a weekly digest in Europe and the US, persist one idempotent delivery job per customer and week, then…
Why Your Background Jobs Fail in Production
Most developers first meet background jobs through a deceptively simple model: put work in a queue, let a worker pick it up, and assume the job will…