NumValidate: open source phone number validation REST API
By Mazzarolo Matteo
I recently published NumValidate, a fully-featured open-source phone number validation REST API service.
In this post I’ll try to highlight some features of NumValidate and to share what I learned while working on it.
The complete repository is available on GitHub.
Here is a small overview of NumValidate:
- Plain simple phone number validation rest API, powered by Google LibPhoneNumber and documented with Slate
- Server-side rendered responsive React website/landing-page (~160kb GZipped) using NextJS
- Private API tokens generation and management for authenticated users through the Dashboard
- Fully featured authentication for accessing the Dashboard: email + password, Github and Google login thanks to Auth0
- API requests with different rate limits for unauthenticated user, free user and pro user, updated in real-time after a subscription change
- Rate limits can be increased by subscribing to a paid account: The secure payment is handled by Stripe and its settings can be changed at any given time
- API tokens cached with Redis for faster response time on consecutive requests
- Production-ready logging and error reporting using Winston, Sentry and Papertrail
If you’re interested in the setup of the project and in the more technical details you should also take a look at the README on GitHub.
P.S.: As you may already have noticed by the small size of the validation-related code, I didn’t even start working on NumValidate with the aim of validating phone numbers: I was more interested in a way to distribute an API using api-tokens and paid subscriptions, which has indeed been the most fun part of the project.