#Proxy

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

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For simple /dashboard and /portfolio pages without slugs, you can use a single proxy.ts at the project root and keep the logic minimal: use it only if you need auth checks or redirects. Otherwise, you don’t need Proxy at all. [Proxy intro]

Below is a TypeScript-only example that:

  • Protects /dashboard (requires authentication).
  • Leaves /portfolio public.
  • Redirects unauthenticated users from /dashboard to /login.
  • Lets everything else pass through.
// proxy.ts (at project root or src/proxy.ts)
import { NextRequest, NextResponse } from 'next/server'

// Example: protected and public routes
const protectedRoutes = ['/dashboard']
const publicRoutes = ['/', '/login', '/portfolio']

export default function proxy(req: NextRequest) {
  const path = req.nextUrl.pathname

  const isProtectedRoute = protectedRoutes.includes(path)
  const isPublicRoute = publicRoutes.includes(path)

  // Example "session" check from cookie (optimistic check)
  const sessionCookie = req.cookies.get('session')?.value
  const isAuthenticated = Boolean(sessionCookie)

  // If route is protected and user is not authenticated, go to /login
  if (isProtectedRoute && !isAuthenticated) {
    return NextResponse.redirect(new URL('/login', req.nextUrl))
  }

  // If route is public and user is authenticated, send them to /dashboard
  if (isPublicRoute && isAuthenticated && !path.startsWith('/dashboard')) {
    return NextResponse.redirect(new URL('/dashboard', req.nextUrl))
  }

  // Otherwise, continue as normal
  return NextResponse.next()
}

// Limit where proxy runs (optional)
export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}
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This pattern follows the “optimistic checks with Proxy” guidance: only read from cookies, avoid DB calls, and centralize simple auth redirects. [Optimistic checks; Proxy exports]

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#

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

long python
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@opal yacht This is what I currenly have in the page.js from my /app/dashboard/

    const cookieStore = await cookies();
    const token = cookieStore.get("session")?.value;

    if (!token) {
        redirect("/api/auth/roblox/redirect");
    }

    const payload = await verifySessionToken(token);
    if (!payload) {
        redirect("/api/auth/roblox/redirect");
    }
    const loggedUser = await getUsernames([payload.sub]);
opal yachtBOT
#

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

#

You can move this logic into proxy.ts as an optimistic check, and keep the slower, secure verification (like verifySessionToken + DB calls) in a Data Access Layer (DAL) that you call from your page or Server Actions. [Optimistic checks; DAL]

1. Proxy: fast cookie-based redirect

Create proxy.ts at the project root (TypeScript):

// proxy.ts
import { NextRequest, NextResponse } from 'next/server'

const protectedRoutes = ['/dashboard']
const publicRoutes = ['/', '/login']

export default function proxy(req: NextRequest) {
  const path = req.nextUrl.pathname
  const isProtectedRoute = protectedRoutes.includes(path)
  const isPublicRoute = publicRoutes.includes(path)

  const sessionCookie = req.cookies.get('session')?.value

  // Not logged in → block protected routes
  if (isProtectedRoute && !sessionCookie) {
    return NextResponse.redirect(new URL('/api/auth/roblox/redirect', req.nextUrl))
  }

  // Logged in → optionally keep them away from public auth pages
  if (isPublicRoute && sessionCookie && !path.startsWith('/dashboard')) {
    return NextResponse.redirect(new URL('/dashboard', req.nextUrl))
  }

  return NextResponse.next()
}

export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}

This mirrors the pattern from the docs: Proxy only reads the cookie and does redirects; no DB or heavy work. [Optimistic checks]

2. Page/DAL: secure verification + data fetch

Move your current logic into a DAL function and call it from app/dashboard/page.tsx:

# 
// app/lib/dal.ts
import 'server-only'
import { cookies } from 'next/headers'
import { redirect } from 'next/navigation'
import { cache } from 'react'
import { verifySessionToken } from '@/app/lib/auth'
import { getUsernames } from '@/app/lib/users'

export const getLoggedUser = cache(async () => {
  const cookieStore = await cookies()
  const token = cookieStore.get('session')?.value

  if (!token) {
    redirect('/api/auth/roblox/redirect')
  }

  const payload = await verifySessionToken(token)
  if (!payload) {
    redirect('/api/auth/roblox/redirect')
  }

  const loggedUser = await getUsernames([payload.sub])
  return loggedUser
})

// app/dashboard/page.tsx
import { getLoggedUser } from '@/app/lib/dal'

export default async function DashboardPage() {
  const loggedUser = await getLoggedUser()

  return (
    <main>
      <h1>Dashboard</h1>
      {/* render with loggedUser */}
    </main>
  )
}

This setup:

  • Uses Proxy for fast, centralized redirects based on the session cookie.
  • Uses a DAL for robust auth + data fetching close to your data, as recommended. [DAL]

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

#

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

long python
#

@opal yacht Just for context. I only have an /dashboard page, which when you enter you normally get sent to an OAuth callback. And if you authorize there you'll get access to the dashboard if the ID matches an database rows ID. So an publicRoute is not needed.

opal yachtBOT
#

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

#

Given your flow (only /dashboard, no public routes, OAuth handled via /api/auth/roblox/redirect), you can keep Proxy very small and let the page/DAL do the secure checks.

1. Proxy: only gate /dashboard by presence of cookie

Use Proxy just to ensure a session cookie exists before hitting /dashboard. No DB or token verification here (optimistic check). [Optimistic checks]

// proxy.ts
import { NextRequest, NextResponse } from 'next/server'

const protectedRoutes = ['/dashboard']

export default function proxy(req: NextRequest) {
  const path = req.nextUrl.pathname
  const isProtectedRoute = protectedRoutes.includes(path)

  const sessionCookie = req.cookies.get('session')?.value

  if (isProtectedRoute && !sessionCookie) {
    return NextResponse.redirect(
      new URL('/api/auth/roblox/redirect', req.nextUrl),
    )
  }

  return NextResponse.next()
}

export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}

This matches the recommended pattern: Proxy runs on every request, reads the cookie, and redirects if missing. [Proxy intro; Auth + Proxy]

2. Page/DAL: keep your existing secure logic

Keep your current page.tsx (converted to TS) or move it into a DAL verifySession() as in the docs, where you:

  • Read the session cookie.
  • Call verifySessionToken(token).
  • Check DB (ID match).
  • redirect('/api/auth/roblox/redirect') if anything fails. [DAL example]

That way:

#
  • Proxy does a fast “has session cookie?” check.
  • The page/DAL does the real authorization and DB validation.

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

#

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

long python
#

@opal yacht

// proxy.ts
import { NextResponse } from 'next/server'

const protectedRoutes = ['/dashboard']

export default function proxy(req) {
    const path = req.nextUrl.pathname
    console.log('Proxy middleware invoked for:', path)
    const isProtectedRoute = protectedRoutes.includes(path)

    const sessionCookie = req.cookies.get('session')?.value

    if (isProtectedRoute && !sessionCookie) {
        console.log('No session cookie found, redirecting to auth')
        return NextResponse.redirect(
            new URL('/api/auth/roblox/redirect', req.nextUrl),
        )
    }

    return NextResponse.next()
}

export const config = {
    matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}```

I've added some console.logs to see if it actually is intercepting and it's not doing that. There's not logs that I am seeing here whenever I go to localhost:3000/dashboard
opal yachtBOT
#

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

#

Your proxy.ts looks structurally fine, so if it’s not running at all there are only a few things the docs mention that can prevent Proxy from being picked up.

Check these points one by one:

  1. File location and name

    Proxy must be:

    • Named exactly proxy.ts (or .js), and
    • Placed in the project root or in src/ at the same level as app or pages. [Proxy file; Getting started]

    So valid locations are:

    • ./proxy.ts (with ./app/...)
    • ./src/proxy.ts (with ./src/app/...)

    If it’s inside app/ (e.g. app/proxy.ts) it will not be used. One of the GitHub reports explicitly mentions that proxy.ts must be “outside of the App Router”. [GitHub issue 85243]

  2. No middleware.ts alongside it

    Having both middleware.ts and proxy.ts causes an error and only proxy.ts should be present. [Upgrade guide]

    One user report shows this exact error when both exist:

    Both middleware file "./src\middleware.ts" and proxy file "./src\proxy.ts" are detected. Please use "./src\proxy.ts" only. [GitHub issue 85243]

    Make sure there is no middleware.ts anywhere at the same level.

  3. Matcher actually matches /dashboard

    Your matcher:

    export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}
#

This is the same pattern used in the docs and it does match /dashboard. [Proxy exports; Auth + Proxy example]

So unless you’ve changed it elsewhere, the matcher is fine.

  1. Dev vs production

    Proxy should run in both next dev and next start. There was a bug in early 16 where proxy.ts worked in dev but not in production; that was fixed in a later canary. [GitHub issue 85243]

    Since you’re testing on localhost:3000/dashboard, confirm:

    • You’re on a Next 16 version that includes the Proxy fixes (the issue references PR #85443 as the fix). [GitHub issue 85243]
    • You restarted the dev server after adding proxy.ts.

  2. Runtime / environment

    Proxy always uses the Node.js runtime and cannot be configured to edge. [Upgrade guide]

    If you had any middleware-specific edge runtime config, remove it; Proxy ignores edge runtime and runs as Node.

If after:

  • placing proxy.ts in root or src/ (not inside app/),
  • ensuring there is no middleware.ts,
  • restarting next dev,
  • and using a recent Next 16 version,

you still see no logs, then the knowledge sources don’t provide more specific debugging steps beyond these constraints and the known bug that was fixed.

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

#

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

long python
#

Got it
@opal yacht

Proxy middleware invoked for: /contact
Proxy middleware invoked for: /games
Proxy middleware invoked for: /
Proxy middleware invoked for: /dashboard
No session cookie found, redirecting to auth
Proxy middleware invoked for: /dashboard
No session cookie found, redirecting to auth
Proxy middleware invoked for: /dashboard
No session cookie found, redirecting to auth
Proxy middleware invoked for: /dashboard
No session cookie found, redirecting to auth
Proxy middleware invoked for: /dashboard
utils/queries/robloxIDtoUser.js - getUsernames: HIT!
utils/queries/games.js - getGames: HIT!
utils/queries/gameRevenueTotals.js - getRevenueData: HIT!
utils/queries/robloxIDtoUser.js - getUsernames: HIT!
Proxy middleware invoked for: /dashboard
Proxy middleware invoked for: /favicon.ico
Proxy middleware invoked for: /dashboard
Proxy middleware invoked for: /favicon.ico

Now why is it doing /favicon.ico awell and such?

opal yachtBOT
#

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

#

proxy.ts runs for every route that matches your config.matcher. Your current matcher:

export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
}

does not exclude favicon.ico, so /favicon.ico still matches and Proxy runs for it. The docs’ negative-matching example explicitly shows adding favicon.ico (and other metadata files) to the negative lookahead to avoid this. [Negative matching]

Update your matcher to exclude favicon.ico (and anything else you don’t want Proxy to run on), for example:

export const config = {
  matcher: [
    // Match all paths except:
    // - api
    // - _next/static
    // - _next/image
    // - favicon.ico
    '/((?!api|_next/static|_next/image|favicon.ico).*)',
  ],
}

This pattern is the same as the official examples that exclude metadata files from Proxy. [Negative matching]

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

#

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

long python
#

Why would you add images and such to it though @opal yacht?

opal yachtBOT
#

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

#

Because in most cases you don’t need Proxy to run for static assets, and skipping them improves performance and avoids breaking internal Next.js routes.

The docs show negative matchers that explicitly exclude:

  • _next/static – static JS/CSS, etc.
  • _next/image – internal image optimizer route.
  • favicon.ico, sitemap.xml, robots.txt – metadata files.

Example from the Proxy docs: [Negative matching]

export const config = {
  matcher: [
    /*
     * Match all request paths except for the ones starting with:
     * - api (API routes)
     * - _next/static (static files)
     * - _next/image (image optimization files)
     * - favicon.ico, sitemap.xml, robots.txt (metadata files)
     */
    '/((?!api|_next/static|_next/image|favicon.ico|sitemap.xml|robots.txt).*)',
  ],
}

Reasons to exclude images/static:

  1. Performance – Proxy runs on every matched request. There’s no benefit in running auth / CSP / other logic for images, CSS, etc., so you skip them to reduce overhead. [Proxy exports]

  2. Avoid breaking Next’s image optimizer – if Proxy intercepts _next/image and, for example, blocks or rewrites it, next/image can fail in production. Several issues were caused by middleware/proxy not excluding _next/image. [Image middleware example; Image auth issue]

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  1. You usually don’t need auth on assets – if an image truly needs protection, you’d typically serve it from a protected route and then explicitly allow or disallow it in your matcher, instead of running Proxy on every asset by default. [Image auth workaround]

So: you add _next/image, _next/static, and sometimes file extensions (like .*\\.png$) to the negative matcher to keep Proxy focused on real page/data routes and avoid unnecessary or harmful processing of static files.

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

#

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

long python
#

@opal yacht Okay, now I have an new question. Forget the past context and start with a fresh start.

I am not caching images and such so Edge Functions on vercel are hitting really hard. What should I do about that?

opal yachtBOT
#

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

#

You’re running into high Edge/Function usage because every image request is being processed instead of served from cache. There are a few levers you can use, depending on whether you’re using next/image and how often your images change.

1. Increase the image cache TTL

If you’re using next/image, set a higher images.minimumCacheTTL so optimized images are reused longer and don’t trigger new transformations as often. [minimumCacheTTL; Managing costs]

// next.config.js / next.config.mjs (JS shown in docs)
module.exports = {
  images: {
    minimumCacheTTL: 2678400, // 31 days
  },
}

This reduces image transformations and cache writes, which directly lowers Image Optimization and function usage. [Managing costs]

2. Prefer static image imports when possible

For images that don’t change, import them statically (local files). Next.js will hash the filename and serve them with Cache-Control: public, max-age=31536000, immutable, so they’re effectively cached forever and don’t hit functions. [Self-hosting caching; Static files caching]

Static files on Vercel are cached on the CDN for the lifetime of the deployment and can persist across deployments due to the hash in the filename. [Static files caching]

3. Use unoptimized for images that don’t benefit from optimization

#

For very small images, SVGs, GIFs, or assets where optimization isn’t useful, set unoptimized on the Image component so they bypass the optimization pipeline and don’t incur transformations/cache writes. [Managing costs]

4. Tighten which images are optimized

Limit optimization to only the domains/paths that need it using images.remotePatterns / images.localPatterns, and reduce the number of formats, sizes, and qualities you support to cut down on transformations. [Managing costs]

Key knobs from the docs:

  • images.formats – fewer formats → fewer transformations.
  • images.imageSizes / images.deviceSizes – only sizes you actually use.
  • images.qualities – smaller images → fewer cache reads/writes. [Managing costs]

5. Ensure CDN caching headers are set

For any dynamic routes or functions that serve images or image metadata, add Cache-Control / CDN-Cache-Control / Vercel-CDN-Cache-Control so Vercel’s CDN can cache responses and avoid re-running the function on every request. [How to cache responses; Cache-Control headers; Set cache control headers]

Example (App Router API route):

export async function GET() {
  return new Response('Image metadata', {
    status: 200,
    headers: {
      'Cache-Control': 'public, s-maxage=86400, stale-while-revalidate=59',
    },
  })
}
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This lets Vercel cache the response at the edge and only revalidate periodically, reducing Edge/Function invocations. [How to cache responses; stale-while-revalidate]

If you share whether you’re using next/image with remote images, static imports, or plain <img>, you can combine these knobs more precisely, but all of the above are directly recommended in the docs for reducing image-related usage and cost.

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

#

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

long python
#

@opal yacht

How should I refresh an component like an chart whenever something changes for example I click on save and it should refresh it .

opal yachtBOT
#

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

#

To refresh a chart after clicking “Save”, use a Server Action for the mutation and then either:

  • Revalidate cached data (if the chart data is fetched in a Server Component), or
  • Update client state (if the chart data is fetched in a Client Component).

Below are both patterns.

1. Server-rendered chart (data fetched on the server)

If your chart’s data is loaded in a Server Component using fetch or a DB call, you can:

  1. Tag the data with next.tags.
  2. Call updateTag or revalidateTag in the Server Action that handles “Save”.

Server Component (chart page):

// app/dashboard/page.tsx
import { Chart } from './chart'

export default async function Page() {
  const res = await fetch('<https://api.example.com/chart-data',> {
    next: { tags: ['chart-data'] },
  })
  const data = await res.json()

  return <Chart data={data} />
}

Server Action (called on Save):

// app/actions.ts
'use server'

import { updateTag } from 'next/cache'

export async function saveSettings(formData: FormData) {
  // Update data in DB or API
  // ...

  // Immediately expire cached chart data so next render sees fresh data
  updateTag('chart-data')
}

updateTag is designed for “read-your-own-writes” in Server Actions and immediately expires the cache entry. [updateTag]

If you don’t need immediate expiry, you can use revalidateTag('chart-data') instead. [revalidateTag]

2. Client-side chart (data fetched in a Client Component)

If your chart is a Client Component using client-side data fetching (e.g. SWR or a custom fetch), you can:

  1. Call a Server Action on “Save”.
  2. Then update local state or let your client library re-fetch.
#

Example with a simple Server Action and client state:

Server Action:

// app/actions.ts
'use server'

export async function saveSettings(formData: FormData) {
  // Update data in DB or API
  // ...
}

Client Component with button + chart:

// app/dashboard/chart-client.tsx
'use client'

import { useState } from 'react'
import { saveSettings } from '@/app/actions'

type ChartData = { /* ... */ }

export function ChartClient({ initialData }: { initialData: ChartData }) {
  const [data, setData] = useState(initialData)

  async function handleSave(formData: FormData) {
    await saveSettings(formData)

    // Re-fetch chart data from your API or route
    const res = await fetch('/api/chart-data')
    const updated = (await res.json()) as ChartData
    setData(updated)
  }

  return (
    <form action={handleSave}>
      {/* form fields */}
      <button type="submit">Save</button>

      {/* render chart with `data` */}
    </form>
  )
}

This follows the pattern of invoking Server Functions from Client Components via event handlers or forms. [Invoking Server Functions]

Summary

  • Server-rendered chart → tag the data and call updateTag / revalidateTag in the Save action so the next render shows fresh data. [updateTag; revalidateTag]
  • Client-rendered chart → call a Server Action on Save, then re-fetch and update client state. [Invoking Server Functions]

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