60 lines
1.6 KiB
TypeScript
60 lines
1.6 KiB
TypeScript
import type { NextMiddleware, RequestData, FetchEventResult } from './types'
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import type { RequestInit } from './spec-extension/request'
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import { DeprecationError } from './error'
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import { fromNodeHeaders } from './utils'
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import { NextFetchEvent } from './spec-extension/fetch-event'
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import { NextRequest } from './spec-extension/request'
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import { NextResponse } from './spec-extension/response'
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import { waitUntilSymbol } from './spec-compliant/fetch-event'
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export async function adapter(params: {
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handler: NextMiddleware
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page: string
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request: RequestData
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}): Promise<FetchEventResult> {
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const request = new NextRequestHint({
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page: params.page,
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input: params.request.url,
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init: {
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geo: params.request.geo,
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headers: fromNodeHeaders(params.request.headers),
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ip: params.request.ip,
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method: params.request.method,
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nextConfig: params.request.nextConfig,
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page: params.request.page,
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},
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})
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const event = new NextFetchEvent({ request, page: params.page })
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const original = await params.handler(request, event)
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return {
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response: original || NextResponse.next(),
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waitUntil: Promise.all(event[waitUntilSymbol]),
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}
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}
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class NextRequestHint extends NextRequest {
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sourcePage: string
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constructor(params: {
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init: RequestInit
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input: Request | string
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page: string
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}) {
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super(params.input, params.init)
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this.sourcePage = params.page
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}
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get request() {
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throw new DeprecationError({ page: this.sourcePage })
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}
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respondWith() {
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throw new DeprecationError({ page: this.sourcePage })
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}
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waitUntil() {
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throw new DeprecationError({ page: this.sourcePage })
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}
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}
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