Failed to collect page data for API route

[meywd]

Deploying a nextjs App router application to cloudflare workers was working fine until I added API route.

Now I am getting the following error:

09:01:09.355 | Collecting page data ...
09:01:10.041 | Error: No issuer
09:01:10.041 | at eE (.next/server/chunks/248.js:13:24904)
09:01:10.041 | at 4803 (.next/server/app/api/callback/route.js:1:27630)
09:01:10.041 | at t (.next/server/webpack-runtime.js:1:127)
09:01:10.041 | at 406 (.next/server/app/api/callback/route.js:1:17091)
09:01:10.042 | at t (.next/server/webpack-runtime.js:1:127)
09:01:10.042 | at t (.next/server/app/api/callback/route.js:1:28844)
09:01:10.042 | at <unknown> (.next/server/app/api/callback/route.js:1:28871)
09:01:10.042 | at t.X (.next/server/webpack-runtime.js:1:1191)
09:01:10.042 | at <unknown> (.next/server/app/api/callback/route.js:1:28857)
09:01:10.042 | at Object.<anonymous> (.next/server/app/api/callback/route.js:1:28897)
09:01:10.048 |  
09:01:10.053 | > Build error occurred
09:01:10.055 | [Error: Failed to collect page data for /api/callback] { type: 'Error' }
09:01:10.109 | node:internal/errors:983
09:01:10.109 | const err = new Error(message);
09:01:10.109 | ^
09:01:10.109 |  
09:01:10.111 | Error: Command failed: npm run build
-- | --
09:01:10.111 | at genericNodeError (node:internal/errors:983:15)
09:01:10.111 | at wrappedFn (node:internal/errors:537:14)
09:01:10.111 | at checkExecSyncError (node:child_process:890:11)
09:01:10.111 | at Object.execSync (node:child_process:962:15)
09:01:10.111 | at buildNextjsApp (file:///opt/buildhome/repo/node_modules/@opennextjs/aws/dist/build/buildNextApp.js:15:8)
09:01:10.111 | at build (file:///opt/buildhome/repo/node_modules/@opennextjs/cloudflare/dist/cli/build/build.js:44:9)
09:01:10.111 | at runCommand (file:///opt/buildhome/repo/node_modules/@opennextjs/cloudflare/dist/cli/index.js:32:20)
09:01:10.112 | at async file:///opt/buildhome/repo/node_modules/@opennextjs/cloudflare/dist/cli/index.js:43:1 {
09:01:10.112 | status: 1,
09:01:10.112 | signal: null,
09:01:10.113 | output: [ null, null, null ],
09:01:10.113 | pid: 745,
09:01:10.113 | stdout: null,
09:01:10.113 | stderr: null
09:01:10.113 | }
09:01:10.113 |  
09:01:10.114 | Node.js v22.9.0
09:01:10.155 | Failed: error occurred while running deploy command

This is my API, a callback endpoint for auth
\src\app\api\callback\route.ts

import { InvalidAccessTokenError } from "@openauthjs/openauth/error";
import { client, setTokens } from "../../../lib/auth"
import { type NextRequest, NextResponse } from "next/server"

async function validate(code: string | null, url: URL): Promise<{ result: boolean, err?: InvalidAccessTokenError}> {
  const exchanged = await client.exchange(code!, `${url.origin}/api/callback`);
  if (exchanged.err == false) {
    await setTokens(exchanged.tokens.access, exchanged.tokens.refresh);
    return { result: true };
  }
  return { result: false, err: exchanged.err };
}

export async function GET(req: NextRequest) {
  const url = new URL(req.url);
  const code = url.searchParams.get("code");
  var result = await validate(code, url);
  if (result) return NextResponse.redirect(`${url.origin}/`);
  return NextResponse.json(result.err, { status: 400 });

}

note: the build succeeds locally, only fails in cloudflare

Any help is appreciated.

[meywd]

it boilded down to process.env not being available right away, I had code that was exposing a variable as singleton, when it was moved to the method call it worked.

[meywd]

to expand on the solution, check on this issue in open auth anomalyco/openauth#254
my solution was

export async function getClient() {
  const client = createClient({
    clientID: process.env.ClientId,
    issuer: process.env.Issuer, 
  });
  return client;
}