With Auth0’s Actions, it’s easy to ensure that users can sign up for an account only between a specific start date and end date.
Some applications have a limited lifetime. A website or app for limited-time events such as a conference, convention, or concert will only be useful when the event takes place. Since there’s no point in allowing people to sign up for an account after the event is over, you may want to limit registration to a specific set of dates.
It usually takes a considerable amount of work to limit the dates when new users could register an account. However, if you’re using Auth0 to authenticate your users, this task became a lot easier thanks to Actions!
Actions are a new feature that allows you to extend Auth0 beyond what it can do “out of the box”. They’re Node.js functions that you can add to various flows within Auth0’s processes, including logging in, changing passwords, and signing up for a new account. You write and store these functions in the Auth0 dashboard, where they’re part of your tenant’s settings, and Auth0’s servers execute them.
In this article’s exercise, you’ll learn how to write an Action that limits when users can sign up for an account for a specific application. If a user signs up for an account outside the defined valid registration period, their attempt to sign up will be canceled, and they will see a message explaining why.
Prerequisites
You’ll need the following for this exercise:
- Auth0 account: Actions are an Auth0 feature, which means you need an Auth0 account to use them. You can sign up for free, and the process is pretty painless.
- Any application that uses your Auth0 tenant to provide Universal Login. Any web-based, mobile, or desktop application will do, just as long as it is one of your tenant’s applications. You’ll need it to log in and see how defining Actions changes how login works. If you don’t have any applications that use Auth0 for authentication, you can download one from the Auth0 Quickstarts page.
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