117 lines
3.9 KiB
JavaScript
117 lines
3.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ExpoError = void 0;
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exports.createRequestHandler = createRequestHandler;
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exports.convertHeaders = convertHeaders;
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exports.convertRequest = convertRequest;
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exports.respond = respond;
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const node_async_hooks_1 = require("node:async_hooks");
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const node_stream_1 = require("node:stream");
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const promises_1 = require("node:stream/promises");
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const abstract_1 = require("./abstract");
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const node_1 = require("./environment/node");
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var abstract_2 = require("./abstract");
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Object.defineProperty(exports, "ExpoError", { enumerable: true, get: function () { return abstract_2.ExpoError; } });
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const STORE = new node_async_hooks_1.AsyncLocalStorage();
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/**
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* Returns a request handler for Express that serves the response using Remix.
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*/
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function createRequestHandler(params, setup) {
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const run = (0, node_1.createNodeRequestScope)(STORE, params);
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const onRequest = (0, abstract_1.createRequestHandler)({
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...(0, node_1.createNodeEnv)(params),
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...setup,
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});
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async function requestHandler(request) {
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try {
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return await run(onRequest, request);
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}
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catch (error) {
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const handleRouteError = setup?.handleRouteError;
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if (handleRouteError && error != null && typeof error === 'object') {
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try {
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return await handleRouteError(error);
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}
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catch {
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// Rethrow original error below
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}
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}
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throw error;
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}
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}
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return async (req, res, next) => {
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if (!req?.url || !req.method) {
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return next();
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}
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try {
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const request = convertRequest(req, res);
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const response = await requestHandler(request);
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await respond(res, response);
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}
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catch (error) {
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// Express doesn't support async functions, so we have to pass along the
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// error manually using next().
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next(error);
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}
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};
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}
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function convertHeaders(requestHeaders) {
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const headers = new Headers();
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for (const [key, values] of Object.entries(requestHeaders)) {
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if (values) {
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if (Array.isArray(values)) {
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for (const value of values) {
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headers.append(key, value);
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}
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}
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else {
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headers.set(key, values);
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}
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}
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}
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return headers;
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}
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function convertRawHeaders(requestHeaders) {
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const headers = new Headers();
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for (let index = 0; index < requestHeaders.length; index += 2) {
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headers.append(requestHeaders[index], requestHeaders[index + 1]);
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}
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return headers;
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}
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function convertRequest(req, res) {
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const url = new URL(`${req.protocol}://${req.get('host')}${req.url}`);
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// Abort action/loaders once we can no longer write a response
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const controller = new AbortController();
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res.on('close', () => controller.abort());
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const init = {
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method: req.method,
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headers: convertRawHeaders(req.rawHeaders),
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// Cast until reason/throwIfAborted added
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// https://github.com/mysticatea/abort-controller/issues/36
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signal: controller.signal,
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};
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if (req.method !== 'GET' && req.method !== 'HEAD') {
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init.body = node_stream_1.Readable.toWeb(req);
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init.duplex = 'half';
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}
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return new Request(url.href, init);
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}
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async function respond(res, expoRes) {
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res.statusMessage = expoRes.statusText;
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res.status(expoRes.status);
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if (typeof res.setHeaders === 'function') {
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res.setHeaders(expoRes.headers);
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}
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else {
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for (const [key, value] of expoRes.headers.entries()) {
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res.appendHeader(key, value);
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}
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}
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if (expoRes.body) {
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await (0, promises_1.pipeline)(node_stream_1.Readable.fromWeb(expoRes.body), res);
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}
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else {
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res.end();
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}
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}
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//# sourceMappingURL=express.js.map
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