#Convex auth useConvexAuth loads even with jwt

24 messages · Page 1 of 1 (latest)

last flaxBOT
#

Hi @honest lagoon. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

The issue you're experiencing with useConvexAuth() still loading despite having a JWT configured is a common authentication state management challenge in Convex.

Understanding the Problem

The useConvexAuth() hook is designed to ensure that the browser has fetched the auth token needed to make authenticated requests to your Convex backend, and that the Convex backend has validated it. This process can take a moment, which is why you're seeing the loading state.

Solutions

There are a few approaches to handle this:

1. Use the AuthLoading Component

Instead of conditionally rendering based on isAuthenticated, consider using the AuthLoading component from Convex:

import { Authenticated, AuthLoading } from "convex/react";

function SignOutButton() {
  const { signOut } = useAuthActions();
  const router = useRouter();
  
  return (
    <div>
      <AuthLoading>
        <div>Loading</div>
      </AuthLoading>
      <Authenticated>
        <button
          className="bg-slate-200 dark:bg-slate-800 text-foreground rounded-md px-2 py-1"
          onClick={() =>
            void signOut().then(() => {
              router.push("/signin");
            })
          }
        >
          Sign out
        </button>
      </Authenticated>
    </div>
  );
}

2. Check for isLoading State

The useConvexAuth() hook provides an isLoading state that you can check:

#
function SignOutButton() {
  const { isAuthenticated, isLoading } = useConvexAuth();
  const { signOut } = useAuthActions();
  const router = useRouter();
  
  if (isLoading) {
    return <div>Loading</div>;
  }
  
  return (
    <div>
      {isAuthenticated ? (
        <button
          className="bg-slate-200 dark:bg-slate-800 text-foreground rounded-md px-2 py-1"
          onClick={() =>
            void signOut().then(() => {
              router.push("/signin");
            })
          }
        >
          Sign out
        </button>
      ) : (
        <div>Not authenticated</div>
      )}
    </div>
  );
}

3. For Next.js Applications

If you're using Next.js, make sure you're using the appropriate authentication check for server components:

import { isAuthenticatedNextjs } from '@convex-dev/auth/nextjs/server';

Additional Notes

  1. When signing out, your approach of using router.push("/signin") after signOut() is correct, as Convex's signOut() doesn't automatically redirect as mentioned in Discord discussions.

  2. If you're experiencing persistent issues with authentication state not updating, it could be related to token expiry or refresh issues that have been reported by other users in the Discord community.

  3. Make sure your auth configuration is properly set up, including the necessary HTTP routes if you're using Convex Auth as noted in another Discord thread.

#

Remember that authentication state management involves both client and server components working together, so ensuring both sides are properly configured is essential.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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@honest lagoon Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest lagoon
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@last flax how can i get the email of the current user?

last flaxBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

To get the email of the current user in Convex, you need to access the user information from the authentication context. The approach depends on whether you're trying to access this information on the client side or in a Convex function.

In Convex Functions (Backend)

You can access the current user's email in a query, mutation, or action using ctx.auth.getUserIdentity():

import { query } from "./_generated/server";

export const getCurrentUserEmail = query({
  args: {},
  handler: async (ctx) => {
    const identity = await ctx.auth.getUserIdentity();
    if (identity === null) {
      throw new Error("Not authenticated");
    }
    
    // The email field is available in the identity object when using providers like Clerk or Auth0
    return identity.email;
  },
});

Note that the availability of the email field depends on your authentication provider:

  • With Clerk or Auth0, the email is typically included in the identity object
  • With Convex Auth, you'll need to retrieve the user from the database

For Convex Auth Users

If you're using Convex Auth, you'll need to get the user ID first and then retrieve the user document:

import { getAuthUserId } from "@convex-dev/auth/server";
import { query } from "./_generated/server";

export const currentUser = query({
  args: {},
  handler: async (ctx) => {
    const userId = await getAuthUserId(ctx);
    if (userId === null) {
      return null;
    }
    const user = await ctx.db.get(userId);
    return user?.email; // Return the email from the user document
  },
});

On the Client Side

To access the user's email on the client side, you have two options:

  1. Use a query function that returns the current user's email:
const userEmail = useQuery(api.users.getCurrentUserEmail);
  1. Use your auth provider's client SDK:
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If you're using Clerk, you can use their useUser() hook:

import { useUser } from "@clerk/clerk-react";

function Profile() {
  const { user } = useUser();
  return <span>Logged in as {user.primaryEmailAddress.emailAddress}</span>;
}

Make sure your component is wrapped in an <Authenticated> component to ensure the user is logged in before trying to access their information:

<Authenticated>
  <Profile />
</Authenticated>

This approach helps you avoid the "loading" state issues you mentioned in your previous question by ensuring the authentication state is fully resolved before attempting to access user data.

Convex & Clerk Documentation provides more details on accessing user information client-side with Clerk.

Would you like more specific guidance based on your authentication provider?

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest lagoon Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest lagoon
#

i am using convex auth in nextjs @last flax

last flaxBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

I see you're using Convex Auth with Next.js. Let me provide you with specific information about how to work with this combination.

Getting User Information with Convex Auth in Next.js

With Convex Auth in Next.js, you can access the current user's information in several ways:

1. In Convex Functions (Backend)

For Convex Auth, you'll need to retrieve the user from your database since the JWT doesn't contain the email directly:

import { query } from "./_generated/server";
import { getAuthUserId } from "@convex-dev/auth/server";

export const getCurrentUser = query({
  args: {},
  handler: async (ctx) => {
    const userId = await getAuthUserId(ctx);
    if (userId === null) {
      return null;
    }
    return await ctx.db.get(userId);
  },
});

2. On the Client Side

Create a query to fetch the user data and use it in your components:

import { useQuery } from "convex/react";
import { api } from "../convex/_generated/api";

function UserProfile() {
  const user = useQuery(api.users.getCurrentUser);
  
  if (!user) return <div>Loading...</div>;
  
  return <div>Email: {user.email}</div>;
}

3. In Next.js Server Components or API Routes

For server-side rendering or API routes, you'll need to pass the auth token to your queries:

import { preloadQuery } from "convex/nextjs";
import { api } from "@/convex/_generated/api";

export async function UserServerComponent() {
  const token = await getAuthToken();
  const preloadedUser = await preloadQuery(
    api.users.getCurrentUser,
    {},
    { token },
  );
  return <UserClientComponent preloadedUser={preloadedUser} />;
}

For the getAuthToken function with Convex Auth, you'll need to implement it based on how you're storing the token in your application.

4. In Next.js Middleware

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If you need user data in middleware, you can fetch it using a query:

import { fetchQuery } from "convex/nextjs";
import { api } from "@/convex/_generated/api";

export async function middleware(req) {
  // Get token from cookies or headers
  const token = getTokenFromRequest(req);
  
  if (token) {
    const user = await fetchQuery(api.users.getCurrentUser, {}, { token });
    // Use user data for middleware logic
  }
}

Remember that with Convex Auth, the user identity information from ctx.auth.getUserIdentity() only contains the token identifier, issuer, and subject - not the email directly. You'll need to store and retrieve user details like email in your database.

Convex Next.js Server Rendering provides more details on server-side authentication with Next.js.

Would you like more specific guidance on any particular aspect of working with Convex Auth in Next.js?

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest lagoon Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest lagoon
#

how can i use the jwt @last flax

last flaxBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

Based on your previous questions, I understand you're using Convex Auth with Next.js and want to know how to use the JWT (JSON Web Token) in your application. Here's how you can work with JWTs in Convex Auth:

Using JWTs with Convex Auth

1. Client-side Authentication

When using Convex Auth, the JWT is automatically handled by the ConvexProviderWithAuth component. You don't need to manually manage the token for most client-side operations:

function useAuth() {
  const { data: session, status, update } = useSession();
  const isLoading = status === "loading";
  const isAuthenticated = !!session?.user;

  const fetchAccessToken = useCallback(
    async ({ forceRefreshToken }) => {
      if (forceRefreshToken) {
        const newSession = await update();
        return newSession?.convexToken || null;
      }
      return session?.convexToken || null;
    },
    [session, update]
  );

  return {
    isLoading,
    isAuthenticated,
    fetchAccessToken,
  };
}

2. Server-side Authentication in Next.js

For server components or API routes, you need to pass the token to Convex functions:

import { preloadQuery } from "convex/nextjs";
import { api } from "@/convex/_generated/api";

export async function TasksWrapper() {
  const token = await getAuthToken();
  const preloadedTasks = await preloadQuery(
    api.tasks.list,
    { list: "default" },
    { token },
  );
  return <Tasks preloadedTasks={preloadedTasks} />;
}

3. Working with Sessions

If you're using NextAuth with Convex, you can include both user ID and session ID in the JWT:

const convexToken = await new SignJWT({
  // These fields will be available on `ctx.auth.getUserIdentity()`
  sub: `${session.userId};${(session as any)._id}`,
})

Then access them in your Convex functions:

#
export async function getSessionId(ctx: { auth: Auth }) {
  const identity = await ctx.auth.getUserIdentity();
  if (identity === null) {
    return null;
  }
  const [, sessionId] = identity.subject.split(";");
  return sessionId;
}

export async function getUserId(ctx: { auth: Auth }) {
  const identity = await ctx.auth.getUserIdentity();
  if (identity === null) {
    return null;
  }
  const [userId] = identity.subject.split(";");
  return userId;
}

4. Creating JWTs for Convex Auth

If you're implementing custom authentication, you'll need to create JWTs with the correct format:

import { SignJWT, importPKCS8 } from "jose";

const privateKey = await importPKCS8(
  process.env.CONVEX_AUTH_PRIVATE_KEY!,
  "RS256"
);

const convexToken = await new SignJWT({
  sub: userId, // The user identifier
})
  .setProtectedHeader({ alg: "RS256" })
  .setIssuedAt()
  .setIssuer(CONVEX_SITE_URL)
  .setAudience("convex")
  .setExpirationTime("1h")
  .sign(privateKey);

This approach is used in the NextAuth adapter for Convex as shown in the Stack documentation.

Remember that with Convex Auth, the JWT is primarily used for authentication between your client and the Convex backend. The actual user data (like email) should be stored and retrieved from your database.

Would you like more specific information about any particular aspect of working with JWTs in Convex?

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest lagoon Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest lagoon
#

@last flax i don't want to make the jwt, i just want to access it to get the current email

last flaxBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

I understand you want to access the current user's email from the JWT in Convex Auth without having to create the JWT yourself. Let me clarify how to do this with Convex Auth in Next.js.

Accessing User Email with Convex Auth

With Convex Auth, the JWT itself doesn't typically contain the email directly. Instead, you need to:

  1. Get the user ID from the JWT
  2. Use that ID to fetch the user's data (including email) from your database

Here's how to do this:

In a Convex Query Function

import { query } from "./_generated/server";
import { getAuthUserId } from "@convex-dev/auth/server";

export const getCurrentUserEmail = query({
  args: {},
  handler: async (ctx) => {
    // Get the user ID from the JWT
    const userId = await getAuthUserId(ctx);
    if (!userId) {
      return null;
    }
    
    // Fetch the user document from your database
    const user = await ctx.db.get(userId);
    return user?.email;
  },
});

Using the Query in Your Component

import { useQuery } from "convex/react";
import { api } from "../convex/_generated/api";

function UserProfile() {
  // This will fetch the email using the JWT automatically
  const email = useQuery(api.users.getCurrentUserEmail);
  
  if (email === undefined) return <div>Loading...</div>;
  if (email === null) return <div>Not logged in</div>;
  
  return <div>Email: {email}</div>;
}

The beauty of this approach is that you don't need to manually handle the JWT - Convex's client library automatically sends it with your requests, and the server functions can extract the user ID from it.

If you need to access the email in multiple components, you might want to create a custom hook:

function useCurrentUserEmail() {
  return useQuery(api.users.getCurrentUserEmail);
}
#

This way, you can simply call useCurrentUserEmail() wherever you need the email.

Does this approach work for your needs?

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: