auth-ui VS Yup

Supabase is great - I use them now and they and would be my choice for a new project today - but I have to say I am not a huge fan of how they communicated the whole auth-helpers and ssr situation, and I am not the only one with this comment by a long shot. This is, I think, a part of wider issues with their documentation; it seems like whoever's doing documentation at Supabase is intelligent but stretched thin. Particularly for Sveltekit, the documentation and examples are incomplete, there isn't any guide to migration or how to modify your code, and if you Google things or follow any links or examples you quickly end up in a web of deprecated repositories where it's unclear what to do next or replace them with. One example: https://github.com/supabase-community/auth-ui

If you produce a product for developers, you really need to have 1) quality, readable documentation with an introduction that noobs and pros alike can follow, 2) multiple complete, cloneable examples on how to integrate and use your product in several different libraries, 3) obvious migration guides and timelines whenever you deprecate something. Supabase lacks all three, which is extremely frustrating and means there's always a giant caveat when I recommend them. They're still the best, it's a very powerful and impressive product, and the possibility of self-hosting is amazing.

The Auth component itself now has a new name "Auth UI", and lives in its own separate repo. Though originally intending to use it, as I began migrating the code I've found this new component to not work quite as well as I'd hoped, getting in the way more than helping. For that reason, I've decided to abandon it in this guide, and build one instead.

Formik and Yup empower you to build robust and user-friendly forms in React. By leveraging their capabilities, you can streamline form management, reduce boilerplate code, and ensure a smooth user experience with clear and effective validation. Refer to the official documentation of Formik https://formik.org/ and Yup https://github.com/jquense/yup for in-depth exploration and advanced use cases.

On the other hand, Formik gives you components that you can mix and match to have fully working forms. Formik has builtin support for Yup for data validation.

I was recently building an application that, among other features, allows a user to submit chess players and chess games to a database. I was utilizing Yup for form schema and Formik for error handling, validation, and form submission.

Sometimes our use case might not require a full-blown form validation library though and we might already have a schema validation library installed in our project such as Zod or Yup. In that case, a simple Vue composable is all that is needed to provide a great form validation UX.

As for validation libraries, I would recommend Yup. With it you define your validation rules in a schema object which can be used where ever you need to do validation. It also integrates very nicely with react-hook-form which is what I’ve moved to using for any nontrivial forms.

GitHub Repository:

I'm currently experimenting with the fantastic Redwood framework. However, while going through the excellent tutorial, I didn't find any guidance on using data validation libraries like Yup, Zod, Vest, etc. So, I had to do some investigation and came up with a solution. This article describes the implementation of validation with Zod in a fresh Redwood app. You can find the sources at this github repository.

Do you want to create a form in your React Native app but don't know how? Then this post is for you! In this post I will teach you how to create forms using a library called Formik , as well as how to integrate non-native form components with Formik. Additionally you will learn how to validate forms using Yup (which Formik supports out of the box)

The project has two authenticated pages - Home and Profile. Unauthenticated users can Sign In, Sign Up, Reset Password and Update Password. All of this is powered by Next.js app router, with usage of both Client and Server Components, and Supabase handling all of the authentication related functionality. Forms are built using Formik and Yup for field validation.

Similarly to zod or yup, attributes are now defined through function builders. For TS users, this removes the need for the as const statement previously needed for type inference (so don't forget to remove it when you migrate 🙈).