Building an idempotent email API with River unique jobs
(riverqueue.com)
We use an email service to send out various River-related notifications. Despite our best efforts setting up SPF, DKIM, and DMARC, we were still getting reports of mail going to spam, so we started looking into alternate mailing providers to see how they'd fare by comparison. Something we noticed while researching is that a shocking low number of them have API facilities to guarantee idempotency — a surprise because email is such a sensitive topic.
We use an email service to send out various River-related notifications. Despite our best efforts setting up SPF, DKIM, and DMARC, we were still getting reports of mail going to spam, so we started looking into alternate mailing providers to see how they'd fare by comparison. Something we noticed while researching is that a shocking low number of them have API facilities to guarantee idempotency — a surprise because email is such a sensitive topic.