Wasp•6d ago

authRequired custom fn

Is it currently possible to define our custom auth checking functions? From my understanding we can use middleware for api endpoints, but pages/routes do not support functions/loaders/middlewares? The auth hooks also do not have any hook for checkUserAuth, meaning if I want to check current user for valid data before allowing him to access a route I am not able to? I understand that I can also do these checks via Queries/Actions so that the user is validated before any data operations happen,

9 Replies

kapa.ai•6d ago

Hi @seppulcro. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the provided knowledge sources, it appears that Wasp currently does not have built-in support for custom auth checking functions for pages/routes. However, there are a few ways you can implement authentication and authorization checks in your Wasp application: 1. For API endpoints, you can use middleware as you mentioned. This is supported for APIs, but not for pages/routes directly. 2. For pages, you can use the authRequired property when declaring a page. This is a simple boolean flag that, when set to true, only allows authenticated users to access the page. Unauthenticated users are redirected to a route defined by the app.auth.onAuthFailedRedirectTo field. However, this is a basic check and doesn't allow for custom logic. Docs: Protecting a page with authRequired 3. For more granular control, you can implement auth checks in your queries and actions. This is the current recommended approach for custom authorization logic. You can access the context.user object in your server-side operations and implement your custom checks there. Docs: Using the context.user object 4. On the client-side, you can use the useAuth hook to access the current user's information and implement conditional rendering or redirects based on your custom logic. Docs: Using the useAuth hook It's worth noting that there are ongoing discussions and plans to improve Wasp's authentication and authorization capabilities. For example, there's an open issue discussing the implementation of more flexible auth middleware behavior for queries, actions, and APIs GitHub Issue: Revisit our auth middleware behaviour. While custom auth checking functions for pages/routes are not directly supported at the moment, you can combine the existing tools (like authRequired for basic checks, server-side checks in queries/actions, and client-side checks using useAuth) to implement your desired authentication and authorization flow. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @seppulcro, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist: Perhaps try again in 15mins?

Vinny (@Wasp)•4d ago

I think just implementing a custom hook you can reuse at the component level, along with wasp's useAuth hook, might be your best bet. @kapa.ai can you suggest how to use Wasp's useAuth hook in a custom hook that does some simple client-side authorization on the logged in user?

kapa.ai•4d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Certainly! I can suggest how to use Wasp's useAuth hook in a custom hook for simple client-side authorization. This approach can be a good solution for implementing custom authorization logic at the component level. Here's an example of how you could create a custom hook that uses Wasp's useAuth hook:

import { useAuth } from 'wasp/client/auth'
import { useEffect, useState } from 'react'

export function useAuthorizedUser(requiredRole) {
  const { data: user, isLoading, error } = useAuth()
  const [isAuthorized, setIsAuthorized] = useState(false)

  useEffect(() => {
    if (user && !isLoading) {
      // Implement your custom authorization logic here
      setIsAuthorized(user.role === requiredRole)
    }
  }, [user, isLoading, requiredRole])

  return { user, isLoading, error, isAuthorized }
}

import { useAuth } from 'wasp/client/auth'
import { useEffect, useState } from 'react'

export function useAuthorizedUser(requiredRole) {
  const { data: user, isLoading, error } = useAuth()
  const [isAuthorized, setIsAuthorized] = useState(false)

  useEffect(() => {
    if (user && !isLoading) {
      // Implement your custom authorization logic here
      setIsAuthorized(user.role === requiredRole)
    }
  }, [user, isLoading, requiredRole])

  return { user, isLoading, error, isAuthorized }
}

This custom hook, useAuthorizedUser, wraps Wasp's useAuth hook and adds a simple role-based authorization check. Here's how you could use it in a component:

import { useAuthorizedUser } from './useAuthorizedUser'
import { Redirect } from 'react-router-dom'

function AdminPage() {
  const { user, isLoading, error, isAuthorized } = useAuthorizedUser('admin')

  if (isLoading) return <div>Loading...</div>
  if (error) return <div>Error: {error.message}</div>
  if (!user) return <Redirect to="/login" />
  if (!isAuthorized) return <div>You are not authorized to view this page.</div>

  return <div>Welcome, Admin!</div>
}

import { useAuthorizedUser } from './useAuthorizedUser'
import { Redirect } from 'react-router-dom'

function AdminPage() {
  const { user, isLoading, error, isAuthorized } = useAuthorizedUser('admin')

  if (isLoading) return <div>Loading...</div>
  if (error) return <div>Error: {error.message}</div>
  if (!user) return <Redirect to="/login" />
  if (!isAuthorized) return <div>You are not authorized to view this page.</div>

  return <div>Welcome, Admin!</div>
}

This approach allows you to reuse the authorization logic across multiple components and pages. You can customize the authorization logic inside the useEffect hook in useAuthorizedUser to fit your specific needs. Remember that client-side authorization should always be accompanied by server-side checks for security reasons. You can implement these checks in your queries and actions as mentioned in the Wasp documentation on using the context.user object. This solution provides a flexible way to implement custom authorization logic while leveraging Wasp's built-in authentication system. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Vinny (@Wasp), I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist: Perhaps try again in 15mins?

Vinny (@Wasp)•4d ago

Maybe @miho has some additional (better) ideas here?

miho•4d ago

useAuth is what I'd suggest as well 👍 wrapping it into a custom hook you can reuse across pages sounds fine

seppulcroOP•3d ago

That was the approach I ended up taking, this was just me wondering if there a more flexible way to do it via main.wasp route definitions

Noah•2d ago

more first-class support for useAuth would be lit, like some more customizability

Vinny (@Wasp)•2d ago

What are you looking to customize?

Noah•this hour

Ive written this in other threads, but e.g. user organization role should be returned from useAuth IMO

Gaming

Programming

authRequired custom fn

Did you find this page helpful?