Angular 2.2 and SystemJS : deploy RXJS

Question

I'm deploying a website but I am not able to "bundle" rxjs since I am using the final version of Angular. I can only deploy rxjs by copying the whole folder node_modules/rxjs on my website.

Here is my configuration of SystemJS

    System.config({
        map: {
            'lodash':'http://127.0.0.1/js/lodash.min.js',
            '@angular/core': 'http://127.0.0.1/js/core.umd.min.js',
            '@angular/compiler': 'http://127.0.0.1/js/compiler.umd.min.js',
            '@angular/common': 'http://127.0.0.1/js/common.umd.min.js',
            '@angular/http': 'http://127.0.0.1/js/http.umd.min.js',
            '@angular/platform-browser': 'http://127.0.0.1/js/platform-browser.umd.min.js',
            '@angular/platform-browser-dynamic': 'http://127.0.0.1/js/platform-browser-dynamic.umd.min.js',
            '@angular/router': 'http://127.0.0.1/js/router.umd.min.js',
            '@angular/forms': 'http://127.0.0.1/js/forms.umd.min.js',
            '@angular/upgrade': 'http://127.0.0.1/js/upgrade/bundles/upgrade.umd.js',
            'rxjs':'http://127.0.0.1/js/vendors.bundle.js'
        },
        packages: {
            '/js': {
                defaultExtension: 'js'
            }
        },
        bundles: {
            '/js/app.bundle': ['main']
        }
    });

    document.addEventListener('DOMContentLoaded', function () {
        System.import('main').then(null, console.error.bind(console));
    });

I'm including rxjs in vendors.bundle.js using the following Gulp script :

    gulp.task('vendor.bundle', function() {
        gulp.src([
            'node_modules/systemjs/dist/system-polyfills.js',
            'node_modules/zone.js/dist/zone.min.js',
            'node_modules/reflect-metadata/Reflect.js',
            'node_modules/systemjs/dist/system.src.js',
            'node_modules/rxjs/bundles/Rx.min.js'
        ])
            .pipe(concat('vendors.bundle.js'))
            //.pipe(uglify())
            .pipe(gulp.dest('./dist/js'));
    });

I have errors like the following :

VM9314:3GET http://127.0.0.1/js/vendors.bundle.js/add/operator/map.js 404 (Not Found) ... Error loading http://127.0.0.1/js/vendors.bundle.js/add/operator/map.js as "rxjs/add/operator/map" from http://127.0.0.1/services/global-services/global.services

It's a problem because when we deploy the whole folder, that generate a huge count of request to get all rxjs/*.js files and implies poor performances mainly on mobile devices.

I had not have that perfs problem when I was deploying only the Rx.min.js file.

Can someone tell me how to deploy rxjs using Angular 2.2 et SystemJS ?

Answer 1

Thx to @martin ! :)

Here is the solution: 1. Build your own Rx.min.js using Gulp(in my case) and systemjs-builder

var SystemBuilder = require('systemjs-builder');
gulp.task('rxjs.bundle', function () {
    var builder = new SystemBuilder('./', {
        paths: {"rxjs/*": "node_modules/rxjs/*.js"},
        map: {"rxjs": "node_modules/rxjs"},
        packages: {"rxjs": {main: 'Rx.js', defaultExtension: "js"}}
    });

    builder.bundle('rxjs', 'dist/js/Rx.min.js', {
        sourceMaps: true,
        minify: true,
        mangle: true
    });
});

2.Declare your bundle in your SystemJS configuration file.

System.config({
    map: {
        'lodash':'http://127.0.0.1/js/lodash.min.js',
        '@angular/core': 'http://127.0.0.1/js/core.umd.min.js',
        '@angular/compiler': 'http://127.0.0.1/js/compiler.umd.min.js',
        '@angular/common': 'http://127.0.0.1/js/common.umd.min.js',
        '@angular/http': 'http://127.0.0.1/js/http.umd.min.js',
        '@angular/platform-browser': 'http://127.0.0.1/js/platform-browser.umd.min.js',
        '@angular/platform-browser-dynamic': 'http://127.0.0.1/js/platform-browser-dynamic.umd.min.js',
        '@angular/router': 'http://127.0.0.1/js/router.umd.min.js',
        '@angular/forms': 'http://127.0.0.1/js/forms.umd.min.js',
        '@angular/upgrade': 'http://127.0.0.1/js/upgrade/bundles/upgrade.umd.js'
    },
    packages: {
        '/js': {
            defaultExtension: 'js'
        }
    },
    bundles: {
        '/js/Rx.min.js': [
            "rxjs/*",
            "rxjs/operator/*",
            "rxjs/observable/*",
            "rxjs/add/operator/*",
            "rxjs/add/observable/*",
            "rxjs/util/*"
        ],
        '/js/app.bundle': ['main']
    }
});

document.addEventListener('DOMContentLoaded', function () {
    System.import('main').then(null, console.error.bind(console));
});

Great thx martin, I struggle a lot and the solution was deep inside a very long discussion. I totally missed it :)

Update !

After I have tested that solution, I can confirm that performances are hugely improved !! The duration for loading my home page was about 15s and now just 3s !!