@nguniversal/express-engine
Version:
Express Engine for running Server Angular Apps
529 lines (512 loc) • 22.6 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('fs'), require('@angular/compiler'), require('@angular/core'), require('@angular/platform-server'), require('@nguniversal/express-engine/tokens')) :
typeof define === 'function' && define.amd ? define('@nguniversal/express-engine', ['exports', 'fs', '@angular/compiler', '@angular/core', '@angular/platform-server', '@nguniversal/express-engine/tokens'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.nguniversal = global.nguniversal || {}, global.nguniversal.expressEngine = {}), global.fs, global.ng.compiler, global.ng.core, global.ng.platformServer, global.nguniversal.expressEngine.tokens));
}(this, (function (exports, fs, compiler, core, platformServer, tokens) { 'use strict';
/** ResourceLoader implementation for loading files */
var FileLoader = /** @class */ (function () {
function FileLoader() {
}
FileLoader.prototype.get = function (url) {
return new Promise(function (resolve, reject) {
fs.readFile(url, function (err, data) {
if (err) {
return reject(err);
}
resolve(data.toString());
});
});
};
return FileLoader;
}());
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
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/**
* A common rendering engine utility. This abstracts the logic
* for handling the platformServer compiler, the module cache, and
* the document loader
*/
var CommonEngine = /** @class */ (function () {
function CommonEngine(moduleOrFactory, providers) {
if (providers === void 0) { providers = []; }
this.moduleOrFactory = moduleOrFactory;
this.providers = providers;
this.factoryCacheMap = new Map();
this.templateCache = {};
}
/** Return an instance of the platformServer compiler */
CommonEngine.prototype.getCompiler = function () {
var compilerFactory = platformServer.platformDynamicServer().injector.get(core.CompilerFactory);
return compilerFactory.createCompiler([
{ providers: [{ provide: compiler.ResourceLoader, useClass: FileLoader, deps: [] }] }
]);
};
/**
* Render an HTML document for a specific URL with specified
* render options
*/
CommonEngine.prototype.render = function (opts) {
return __awaiter(this, void 0, void 0, function () {
var doc, _a, extraProviders, moduleOrFactory, factory;
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return [4 /*yield*/, this.getDocument(opts.documentFilePath)];
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_b.label = 2;
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doc = _a;
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{
provide: platformServer.INITIAL_CONFIG,
useValue: {
document: doc,
url: opts.url
}
}
]);
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return [2 /*return*/, platformServer.renderModuleFactory(factory, { extraProviders: extraProviders })];
}
});
});
};
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CommonEngine.prototype.getFactory = function (moduleOrFactory) {
return __awaiter(this, void 0, void 0, function () {
var moduleFactory, factory;
return __generator(this, function (_a) {
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});
};
/** Retrieve the document from the cache or the filesystem */
CommonEngine.prototype.getDocument = function (filePath) {
var doc = this.templateCache[filePath] = this.templateCache[filePath] ||
fs.readFileSync(filePath).toString();
// As promise so we can change the API later without breaking
return Promise.resolve(doc);
};
return CommonEngine;
}());
/**
* @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.io/license
*/
/**
* @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.io/license
*/
/**
* @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.io/license
*/
/**
* @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.io/license
*/
/**
* This holds a cached version of each index used.
*/
var templateCache = {};
/**
* This is an express engine for handling Angular Applications
*/
function ngExpressEngine(setupOptions) {
var engine = new CommonEngine(setupOptions.bootstrap, setupOptions.providers);
return function (filePath, options, callback) {
try {
var renderOptions = Object.assign({}, options);
if (!setupOptions.bootstrap && !renderOptions.bootstrap) {
throw new Error('You must pass in a NgModule or NgModuleFactory to be bootstrapped');
}
var req = renderOptions.req;
var res = renderOptions.res || req.res;
renderOptions.url =
renderOptions.url || req.protocol + "://" + (req.get('host') || '') + req.originalUrl;
renderOptions.document = renderOptions.document || getDocument(filePath);
renderOptions.providers = renderOptions.providers || [];
renderOptions.providers = renderOptions.providers.concat(getReqResProviders(req, res));
engine.render(renderOptions)
.then(function (html) { return callback(null, html); })
.catch(callback);
}
catch (err) {
callback(err);
}
};
}
/**
* Get providers of the request and response
*/
function getReqResProviders(req, res) {
var providers = [
{
provide: tokens.REQUEST,
useValue: req
}
];
if (res) {
providers.push({
provide: tokens.RESPONSE,
useValue: res
});
}
return providers;
}
/**
* Get the document at the file path
*/
function getDocument(filePath) {
return templateCache[filePath] = templateCache[filePath] || fs.readFileSync(filePath).toString();
}
/**
* @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.io/license
*/
/**
* @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.io/license
*/
/**
* Generated bundle index. Do not edit.
*/
exports.ngExpressEngine = ngExpressEngine;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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