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2026-08-03 12:00
Node.js SMS OTP Login Without Webhooks: Polling, Retry, Resend, and Abuse Prevention
TL;DR
Short answer: a polling-based SMS provider is enough for a basic Node.js OTP login, provided the auth service owns the polling schedule, retry limits, resend cooldown, and abuse prevention. I would use it for straightforward SMS verification, but I would choose a specialist authentication provider when voice, WhatsApp, RCS, or advanced omnichannel failover is a hard requirement.
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