2022-06-09 13:10:21 +02:00
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# Removed page from Middleware API
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2022-06-01 22:06:37 +02:00
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#### Why This Error Occurred
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2022-08-08 16:40:44 +02:00
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Your application is interacting with `request.page` which has been deprecated.
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2022-06-01 22:06:37 +02:00
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```typescript
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// middleware.ts
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import { NextRequest, NextResponse } from 'next/server'
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export function middleware(request: NextRequest) {
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const { params } = event.request.page
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const { locale, slug } = params
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if (locale && slug) {
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const { search, protocol, host } = request.nextUrl
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const url = new URL(`${protocol}//${locale}.${host}/${slug}${search}`)
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return NextResponse.redirect(url)
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}
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}
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```
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#### Possible Ways to Fix It
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You can use [URLPattern](https://developer.mozilla.org/en-US/docs/Web/API/URLPattern) instead to have the same behavior:
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```typescript
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// middleware.ts
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import { NextRequest, NextResponse } from 'next/server'
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const PATTERNS = [
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[
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new URLPattern({ pathname: '/:locale/:slug' }),
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({ pathname }) => pathname.groups,
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],
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]
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const params = (url) => {
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const input = url.split('?')[0]
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let result = {}
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for (const [pattern, handler] of PATTERNS) {
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const patternResult = pattern.exec(input)
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if (patternResult !== null && 'pathname' in patternResult) {
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result = handler(patternResult)
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break
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}
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}
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return result
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}
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export function middleware(request: NextRequest) {
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const { locale, slug } = params(request.url)
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if (locale && slug) {
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const { search, protocol, host } = request.nextUrl
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const url = new URL(`${protocol}//${locale}.${host}/${slug}${search}`)
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return NextResponse.redirect(url)
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}
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}
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```
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