Supabase Auth

When it comes to conversion tracking, a lead event happens when a user performs an action that indicates interest in your product or service. This could be anything from:

• Signing up for an account
• Adding a product to cart
• Joining a mailing list

In this guide, we will be focusing on tracking new user sign-ups for a SaaS application that uses Supabase Auth for user authentication.

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Prerequisites

Before you get started, make sure you follow the Dub Conversions quickstart guide to get Dub Conversions set up for your links:

1. Install the @dub/analytics client-side SDK
2. Install the Dub server-side SDK
3. Enable conversion tracking for your links

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Configure Supabase Auth

Next, configure Supabase Auth to track a lead conversion event in the auth callback function.

Here’s how it works in a nutshell:

1. In the /api/auth/callback route, check if:
   • the dub_id cookie is present.
   • the user is a new sign up (created in the last 10 minutes).
2. If the dub_id cookie is present and the user is a new sign up, send a lead event to Dub using dub.track.lead
3. Delete the dub_id cookie.

Here’s the full list of attributes you can pass when sending a lead event:

Property	Description	Required
clickId	The unique dub_id parameter that the lead conversion event is attributed to.	Yes
eventName	The name of the event. Example: “Sign up”.	Yes
customerId	The unique ID of the customer in your system. Will be used to identify and attribute all future events to this customer.	Yes
customerEmail	The email address of the customer. If not passed, a random email address will be generated.	No
customerName	The name of the customer. If not passed, a random name will be generated (e.g. “Big Red Caribou”).	No
customerAvatar	The avatar URL of the customer. If not passed, a random avatar URL will be generated.	No

Supabase Auth + Next.js App Router Example

Check out a real-world example of this in action – Extrapolate uses Supabase Auth and Next.js App Router to track new user sign-ups.

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View your conversions

Once you’ve set this up, all your tracked lead events will show up on your Analytics dashboard. We provide 3 different views to help you understand your conversions:

• Time-series: A time-series view of the number of leads over time.
• Funnel chart: A funnel chart view visualizing the conversion & dropoff rates across the different steps in the conversion funnel (clicks → leads → sales).
• Real-time events stream: A real-time events stream of every single lead event that occurs across all your links in your workspace.

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Example Apps