Convex CommunityCCConvex Community
Powered by
warmbowskiW
Convex Community•9mo ago•
14 replies
warmbowski

SSR not working using Tanstack-Start, Convex with Tanstack-Query, Clerk auth.

There seems to be a big problem when SSR kicks in for routes that have convex function calls that require authentication. What I see is the 
__root
__root
 beforeLoad calls the server function that returns the token and then calls 
serverHTTPClient.setAuth(token)
serverHTTPClient.setAuth(token)
, so the convexClient has the token when the first convex functions are called, but the user isn't set yet on the convex backend. So the functions throw when they find no auth user (I see the "Not authenticated" errors in the convex dev server console) and that errors out the SSR with a message like the one below showing up in the web server console and the browser when the page loads. So there is a big delay between when the token is retrieved and processed in the serverFunction and when the convex server actually sets the user for 
auth.getUserIdentity()
auth.getUserIdentity()
. I feel like the convex auth with clerk is a black box to me, and I also feel like the authentication on the convex server needs to be triggered in that before load somehow.

All routes work fine in the client when SSR is disabled. Has anyone else run into this? Any suggestions would be much appreciated for troubleshooting. For now, I'm just going without SSR. 

Uncaught Error: Switched to client rendering because the server rendering errored:

[Request ID: 3cb284c91a255ec5] Server Error
Uncaught Error: User not authenticated
    at handler (../../convex/functions/members.ts:172:22)

    at handler (../../convex/functions/members.ts:172:22)

    at ConvexHttpClient.action (file:///..../iounia/node_modules/.pnpm/convex@1.24.3_@cl…0__react@19.1.0/node_modules/convex/dist/esm/browser/http_client.js:344:15)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async file:///..../iounia/node_modules/.pnpm/@convex-dev+react…oqamnnqqfk2a/node_modules/@convex-dev/react-query/dist/esm/index.js:228:34
<OutletImpl>        
component    @    __root.tsx:80
<StartClient>        
(anonymous)    @    client.tsx:8
Uncaught Error: Switched to client rendering because the server rendering errored:

[Request ID: 3cb284c91a255ec5] Server Error
Uncaught Error: User not authenticated
    at handler (../../convex/functions/members.ts:172:22)

    at handler (../../convex/functions/members.ts:172:22)

    at ConvexHttpClient.action (file:///..../iounia/node_modules/.pnpm/convex@1.24.3_@cl…0__react@19.1.0/node_modules/convex/dist/esm/browser/http_client.js:344:15)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async file:///..../iounia/node_modules/.pnpm/@convex-dev+react…oqamnnqqfk2a/node_modules/@convex-dev/react-query/dist/esm/index.js:228:34
<OutletImpl>        
component    @    __root.tsx:80
<StartClient>        
(anonymous)    @    client.tsx:8
Convex Community banner
Convex CommunityJoin
Join the Convex Discord! Explore Convex, the backend platform that keeps your app in sync.
15,138Members
Resources
Was this page helpful?

Similar Threads

Recent Announcements
Recent Announcements
james

Hi @everyone with everything going on today I forgot to post on discord about our EU launch! We have a region in Dublin now! You can start using it immediately, even for folks on the free plan. https://news.convex.dev/we-finally-got-our-eu-visa/ Stay tuned for more regions but also stay tuned for more infra improvements where we improve latency for teams no matter where their servers are located. Just at the tip of the iceberg re all the optimizations we have lined up.

james · 4d ago

Wayne

Hi @everyone happy Monday. Components Authoring [Challenge](https://www.convex.dev/components/challenge) updates! Meet the second batch of community-approved components **Firecrawl Scrape **- Scrape any URL and get clean markdown, HTML, screenshots, or structured JSON - with durable caching and reactive queries. https://www.convex.dev/components/firecrawl-scrape Built by: Gitmaxd **Durable Agents **- A Convex component for building durable AI agents with an async tool loop. https://www.convex.dev/components/durable-agents Built by: Siegfried **Convex Debouncer** - A server-side debouncing component for debouncing expensive operations like LLM calls, metrics computation, or any heavy processing that should only run after a period of inactivity. https://www.convex.dev/components/debouncer Built by: Ilya **DatabaseChat **- A Convex component for adding natural language database queries to your app. https://www.convex.dev/components/database-chat Built by: Nick **Transloadit** - A Convex component for creating Transloadit Assemblies, handling resumable uploads with status, and persisting status/results in Convex. https://www.convex.dev/components/transloadit Built by: Kvz **Loops** - A Convex component for integrating with Loops.so email marketing platform. https://www.convex.dev/components/loops Built by: Bobby The [challenge](https://www.convex.dev/components/challenge) is now ongoing, so keep building, and we'll keep rewarding. Thanks, everyone!

Wayne · 3w ago

Liz C

Hi everyone! Have you ever wanted to get your hands on some convex swag? Well you're in luck! We just launched our Convex swag store. Check it out here ---> https://store.convex.dev/

Liz C · 3w ago

Similar Threads

Tanstack start with Convex + clerk
Convex BotCConvex Bot / support-community
8mo ago
Convex + Tanstack Start + Clerk
yoniwisinYyoniwisin / support-community
15mo ago
Clerk + Convex + TanStack Start setup
gabrielwGgabrielw / support-community
10mo ago
Clerk, convex, tanstack-start error
Lyonel PierceLLyonel Pierce / support-community
7mo ago