Everywhere ctx.session.user in a router is used I get this error

all these three things and probably more return that same error:

[ Server ]  Error: Route "/dashboard" used `...headers()` or similar iteration. `headers()` should be awaited before using its value. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis

Call Stack
Next.js
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
getUserLocale
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)

[ Server ]  Error: Route "/dashboard" used `...headers()` or similar iteration. `headers()` should be awaited before using its value. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis

Call Stack
Next.js
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
getUserLocale
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)
<anonymous>
file://http://localhost:3000/_next/static/chunks/node_modules_next_dist_compiled_107ce8._.js (3700:31)

4 Replies

Yiannis•2mo ago

Can you share your trpc file (where the context gets defined and also the “server” api file

JeremyOP•2mo ago

this was a next-auth issue.

CommandoBrando•2mo ago

@Jeremy were you able to resolve it? What is the fix. Just upgraded to nextjs15 and I am getting this now

JeremyOP•2mo ago

So first of all update your next auth to the latest version If that doesnt do the job then somewhere in server.ts modify the create context like so:

import { headers } from "next/headers"; // probably already imported

const createContext = cache(async () => {
const heads = new Headers(await headers());

import { headers } from "next/headers"; // probably already imported

const createContext = cache(async () => {
const heads = new Headers(await headers());

Gaming

Programming

Everywhere ctx.session.user in a router is used I get this error