@angular/build
Version:
Official build system for Angular
47 lines (46 loc) • 1.76 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.createAngularIndexHtmlMiddleware = createAngularIndexHtmlMiddleware;
const node_path_1 = require("node:path");
const utils_1 = require("../utils");
function createAngularIndexHtmlMiddleware(server, outputFiles, resetComponentUpdates, indexHtmlTransformer) {
return function angularIndexHtmlMiddleware(req, res, next) {
if (!req.url) {
next();
return;
}
// Parse the incoming request.
// The base of the URL is unused but required to parse the URL.
const pathname = (0, utils_1.pathnameWithoutBasePath)(req.url, server.config.base);
const extension = (0, node_path_1.extname)(pathname);
if (extension !== '.html') {
next();
return;
}
const rawHtml = outputFiles.get(pathname)?.contents;
if (!rawHtml) {
next();
return;
}
// A request for the index indicates a full page reload request.
resetComponentUpdates();
server
.transformIndexHtml(req.url, Buffer.from(rawHtml).toString('utf-8'))
.then(async (processedHtml) => {
if (indexHtmlTransformer) {
processedHtml = await indexHtmlTransformer(processedHtml);
}
res.setHeader('Content-Type', 'text/html');
res.setHeader('Cache-Control', 'no-cache');
res.end(processedHtml);
})
.catch((error) => next(error));
};
}