51 lines
2.0 KiB
JavaScript
51 lines
2.0 KiB
JavaScript
import { getModuleBuildInfo } from "./get-module-build-info";
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import { stringifyRequest } from "../stringify-request";
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import { MIDDLEWARE_LOCATION_REGEXP } from "../../../lib/constants";
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// matchers can have special characters that break the loader params
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// parsing so we base64 encode/decode the string
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export function encodeMatchers(matchers) {
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return Buffer.from(JSON.stringify(matchers)).toString("base64");
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}
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export function decodeMatchers(encodedMatchers) {
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return JSON.parse(Buffer.from(encodedMatchers, "base64").toString());
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}
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export default function middlewareLoader() {
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const { absolutePagePath, page, rootDir, matchers: encodedMatchers, preferredRegion, middlewareConfig: middlewareConfigBase64 } = this.getOptions();
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const matchers = encodedMatchers ? decodeMatchers(encodedMatchers) : undefined;
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const stringifiedPagePath = stringifyRequest(this, absolutePagePath);
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const middlewareConfig = JSON.parse(Buffer.from(middlewareConfigBase64, "base64").toString());
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const buildInfo = getModuleBuildInfo(this._module);
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buildInfo.nextEdgeMiddleware = {
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matchers,
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page: page.replace(new RegExp(`/${MIDDLEWARE_LOCATION_REGEXP}$`), "") || "/"
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};
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buildInfo.rootDir = rootDir;
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buildInfo.route = {
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page,
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absolutePagePath,
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preferredRegion,
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middlewareConfig
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};
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return `
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import 'next/dist/esm/server/web/globals'
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import { adapter } from 'next/dist/esm/server/web/adapter'
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import * as _mod from ${stringifiedPagePath}
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const mod = { ..._mod }
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const handler = mod.middleware || mod.default
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if (typeof handler !== 'function') {
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throw new Error('The Middleware "pages${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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//# sourceMappingURL=next-middleware-loader.js.map
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