fix: correct server handler code

Author: orinokai

package-lock.json

@@ -4,7 +4,6 @@ import { nodeFileTrace } from '@vercel/nft'
 import { copySync, emptyDirSync, readJsonSync, writeJSONSync } from 'fs-extra/esm'
 
 import { NEXT_BUILD_DIR, SERVER_HANDLER_DIR, SERVER_HANDLER_NAME, PLUGIN_DIR } from './constants.js'
-import { write } from 'fs-extra'
 
 const pkg = readJsonSync(`${PLUGIN_DIR}/package.json`)
 
@@ -48,6 +47,6 @@ export const createServerHandler = async () => {
 
  writeFileSync(
  `${SERVER_HANDLER_DIR}/${SERVER_HANDLER_NAME}.js`,
- `import handler from './dist/templates/server-handler.js';export default (request) => handler;export const config = { path: '/*' }`,
+ `import handler from './dist/templates/server-handler.js';export default handler;export const config = { path: '/*' }`,
  )
 }

src/helpers/functions.ts

@@ -1,8 +1,9 @@
 import { toComputeResponse, toReqRes } from '@fastly/http-compute-js'
+import type { WorkerRequestHandler } from 'next/dist/server/lib/types.js'
 
 import { RUNTIME_DIR } from '../helpers/constants.js'
 
-let nextHandler: any
+let nextHandler: WorkerRequestHandler
 
 export default async (request: Request) => {
  if (!nextHandler) {