#javascript

Articles tagged with #javascript

Stop one person claiming your Node.js free tier twice: Gmail dots, plus tags and googlemail.com
A small TypeScript email normaliser, a trial_claims table with a unique key, and one transaction around the credit grant, with Prisma, Drizzle, node-postgres, better-sqlite3 and a Next.js route handler
Oct 13, 202612 min read1
The SMS bill nobody planned for: when a signup form sends a code to any number typed in
Rate limits, reserved ranges, country allowlists and spend caps for Node and PHP, with tested snippets
Oct 12, 202610 min read
Stop free trial reuse at signup: an email key and a phone key in Node
Normalise the email and the phone into matching keys, claim both in one Postgres insert, and still create the account when only the credits should be refused.
Oct 8, 202610 min read4