34 lines
929 B
TypeScript
34 lines
929 B
TypeScript
import loaderUtils from 'next/dist/compiled/loader-utils'
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export type MiddlewareLoaderOptions = {
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absolutePagePath: string
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page: string
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}
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export default function middlewareLoader(this: any) {
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const { absolutePagePath, page }: MiddlewareLoaderOptions =
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loaderUtils.getOptions(this)
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const stringifiedPagePath = loaderUtils.stringifyRequest(
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this,
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absolutePagePath
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)
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return `
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import { adapter } from 'next/dist/server/web/adapter'
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var mod = require(${stringifiedPagePath})
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var handler = mod.middleware || mod.default;
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if (typeof handler !== 'function') {
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throw new Error('The Middleware "pages${page}" must export a \`middleware\` or a \`default\` function');
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}
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export default function (opts) {
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return adapter({
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...opts,
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page: ${JSON.stringify(page)},
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handler,
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})
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}
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`
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}
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