main repo

node_modules/next/dist/esm/build/webpack/loaders/next-middleware-loader.js

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