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Quick Tips and Tricks for Auth0 Actions

Here’s a collection of Actions that you can write quickly to perform useful tasks.

Actions make it possible for you to customize the way Auth0 works. They do this by letting you insert scripts — called Actions — into various Auth0 workflows to add functionality and enhance your users’ experience.

Actions can be complex, but they don’t need to be. In this article, I’ll show you a handful of Actions that can you can enter in a minute or two, but perform tasks that you’ll find useful in the day-to-day running of your applications.

Redirect Users to a “Downtime” Page

Sooner or later, your application will have downtime. If all goes well, it will be scheduled downtime, but there will likely be unscheduled downtime too. In either case, it’s useful to have a web page where you can redirect users to inform them that your application is unavailable and provide additional details.

You can do this by adding the following Action to the Login flow, replacing {SYSTEM DOWNTIME PAGE URL} with the location of the web page explaining the downtime:

// Login flow

exports.onExecutePostLogin = async (event, api) => {
  api.redirect.sendUserTo("{SYSTEM DOWNTIME PAGE URL}");
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When your application is down, drag this Action into your tenant’s Login flow. It uses the api.redirect.sendUserTo() method to redirect the user to the given URL after they log in.

Keep in mind that users will see the downtime page only after logging in successfully.


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