Courses / Workflow Automation (integrations & scripting)
31. Idempotent Email/SMS Delivery
Techniques to ensure notifications are sent once and deduplicated across retries.
JavaScript
Idempotent Email/SMS Delivery
A way to guarantee a notification (email/SMS) is sent exactly once despite retries or failures.
"I must avoid duplicate messages when my job runner retries after a crash."
Idempotent delivery uses a unique delivery identifier and a durable record of sent status so retries detect and skip duplicates; it ensures side effects happen once even if the sender repeats the operation.
"I must avoid duplicate messages when my job runner retries after a crash."
Idempotent delivery uses a unique delivery identifier and a durable record of sent status so retries detect and skip duplicates; it ensures side effects happen once even if the sender repeats the operation.