Kismet Hasanaj
101 lines
4.1 KiB
JavaScript
101 lines
4.1 KiB
JavaScript
import '../adapter/setup-node-env.external';
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import '../../server/web/globals';
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import { adapter } from '../../server/web/adapter';
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import { IncrementalCache } from '../../server/lib/incremental-cache';
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// OPTIONAL_IMPORT:incrementalCacheHandler
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// Import the userland code.
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import * as _mod from 'VAR_USERLAND';
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import { edgeInstrumentationOnRequestError } from '../../server/web/globals';
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import { isNextRouterError } from '../../client/components/is-next-router-error';
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import { toNodeOutgoingHttpHeaders } from '../../server/web/utils';
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const mod = {
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..._mod
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};
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const page = 'VAR_DEFINITION_PAGE';
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const isProxy = page === '/proxy' || page === '/src/proxy';
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const handlerUserland = (isProxy ? mod.proxy : mod.middleware) || mod.default;
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class ProxyMissingExportError extends Error {
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constructor(message){
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super(message);
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// Stack isn't useful here, remove it considering it spams logs during development.
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this.stack = '';
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}
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}
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// TODO: This spams logs during development. Find a better way to handle this.
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// Removing this will spam "fn is not a function" logs which is worse.
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if (typeof handlerUserland !== 'function') {
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throw new ProxyMissingExportError(`The ${isProxy ? 'Proxy' : 'Middleware'} file "${page}" must export a function named \`${isProxy ? 'proxy' : 'middleware'}\` or a default function.`);
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}
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// Proxy will only sent out the FetchEvent to next server,
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// so load instrumentation module here and track the error inside proxy module.
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function errorHandledHandler(fn) {
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return async (...args)=>{
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try {
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return await fn(...args);
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} catch (err) {
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// In development, error the navigation API usage in runtime,
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// since it's not allowed to be used in proxy as it's outside of react component tree.
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if (process.env.NODE_ENV !== 'production') {
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if (isNextRouterError(err)) {
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err.message = `Next.js navigation API is not allowed to be used in ${isProxy ? 'Proxy' : 'Middleware'}.`;
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throw err;
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}
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}
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const req = args[0];
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const url = new URL(req.url);
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const resource = url.pathname + url.search;
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await edgeInstrumentationOnRequestError(err, {
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path: resource,
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method: req.method,
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headers: Object.fromEntries(req.headers.entries())
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}, {
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routerKind: 'Pages Router',
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routePath: '/proxy',
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routeType: 'proxy',
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revalidateReason: undefined
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});
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throw err;
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}
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};
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}
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const internalHandler = (opts)=>{
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return adapter({
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...opts,
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IncrementalCache,
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incrementalCacheHandler,
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page,
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handler: errorHandledHandler(handlerUserland)
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});
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};
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export async function handler(request, ctx) {
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const result = await internalHandler({
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request: {
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url: request.url,
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method: request.method,
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headers: toNodeOutgoingHttpHeaders(request.headers),
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nextConfig: {
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basePath: process.env.__NEXT_BASE_PATH,
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i18n: process.env.__NEXT_I18N_CONFIG,
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trailingSlash: Boolean(process.env.__NEXT_TRAILING_SLASH),
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experimental: {
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cacheLife: process.env.__NEXT_CACHE_LIFE,
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authInterrupts: Boolean(process.env.__NEXT_EXPERIMENTAL_AUTH_INTERRUPTS),
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clientParamParsingOrigins: process.env.__NEXT_CLIENT_PARAM_PARSING_ORIGINS
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}
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},
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page: {
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name: page
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},
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body: request.method !== 'GET' && request.method !== 'HEAD' ? request.body ?? undefined : undefined,
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waitUntil: ctx.waitUntil,
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requestMeta: ctx.requestMeta,
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signal: ctx.signal || new AbortController().signal
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}
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});
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ctx.waitUntil == null ? void 0 : ctx.waitUntil.call(ctx, result.waitUntil);
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return result.response;
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}
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// backwards compat
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export default internalHandler;
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//# sourceMappingURL=middleware.js.map
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