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@expo/server

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.createRequestHandler = createRequestHandler; exports.convertHeaders = convertHeaders; exports.convertRequest = convertRequest; exports.respond = respond; const node_stream_1 = require("node:stream"); const promises_1 = require("node:stream/promises"); const index_1 = require("../index"); /** * Returns a request handler for Express that serves the response using Remix. */ function createRequestHandler({ build }, setup) { const handleRequest = (0, index_1.createRequestHandler)(build, setup); return async (req, res, next) => { if (!req?.url || !req.method) { return next(); } try { const request = convertRequest(req, res); const response = await handleRequest(request); await respond(res, response); } catch (error) { // Express doesn't support async functions, so we have to pass along the // error manually using next(). next(error); } }; } function convertHeaders(requestHeaders) { const headers = new Headers(); for (const [key, values] of Object.entries(requestHeaders)) { if (values) { if (Array.isArray(values)) { for (const value of values) { headers.append(key, value); } } else { headers.set(key, values); } } } return headers; } function convertRawHeaders(requestHeaders) { const headers = new Headers(); for (let index = 0; index < requestHeaders.length; index += 2) { headers.append(requestHeaders[index], requestHeaders[index + 1]); } return headers; } function convertRequest(req, res) { const url = new URL(`${req.protocol}://${req.get('host')}${req.url}`); // Abort action/loaders once we can no longer write a response const controller = new AbortController(); res.on('close', () => controller.abort()); const init = { method: req.method, headers: convertRawHeaders(req.rawHeaders), // Cast until reason/throwIfAborted added // https://github.com/mysticatea/abort-controller/issues/36 signal: controller.signal, }; if (req.method !== 'GET' && req.method !== 'HEAD') { init.body = node_stream_1.Readable.toWeb(req); init.duplex = 'half'; } return new Request(url.href, init); } async function respond(res, expoRes) { res.statusMessage = expoRes.statusText; res.status(expoRes.status); if (typeof res.setHeaders === 'function') { res.setHeaders(expoRes.headers); } else { for (const [key, value] of expoRes.headers.entries()) { res.appendHeader(key, value); } } if (expoRes.body) { await (0, promises_1.pipeline)(node_stream_1.Readable.fromWeb(expoRes.body), res); } else { res.end(); } } //# sourceMappingURL=express.js.map