起初

如果您还没有看过之前投稿的PWA应用的文章，现在准备部署，请点击以下链接查看：
(https://qiita.com/KashikomaSweet/items/a156e2c2468017359df0)

部署到Heroku

参考这篇文章，在Heroku上部署应用。

操作步骤

添加文件

添加 server.js

const express = require('express');
const app = express();
app.use(express.static(__dirname + '/dist/pwa-sample'));
app.listen(process.env.PORT || 8080);
const path = require('path');
app.get('/*', function(req, res){
  res.sendFile(path.join(__dirname + '/dist/pwa-sample/index.html'));
});

编辑文件

编辑package.json

{
  "name": "pwa-sample",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "node server.js",
    "postinstall": "ng build --prod && node generate-sw.js",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.0.0",
    "@angular/common": "~7.0.0",
    "@angular/compiler": "~7.0.0",
    "@angular/core": "~7.0.0",
    "@angular/forms": "~7.0.0",
    "@angular/http": "~7.0.0",
    "@angular/platform-browser": "~7.0.0",
    "@angular/platform-browser-dynamic": "~7.0.0",
    "@angular/router": "~7.0.0",
    "core-js": "^2.5.4",
    "rxjs": "~6.3.3",
    "workbox-build": "^3.6.3",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.10.0",
    "@angular/cli": "~7.0.2",
    "@angular/compiler-cli": "~7.0.0",
    "@angular/language-service": "~7.0.0",
    "@types/node": "~8.9.4",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.1.1"
  },
  "engines": {
    "node": "8.9.4",
    "npm": "5.6.x"
  }
}

我正在调整start、postinstall和engines。
请输入heroku支持的engines版本。
https://devcenter.heroku.com/articles/nodejs-support

在Heroku上创建应用程序。

首先安装herokuCLI。请访问https://devcenter.heroku.com/articles/heroku-cli。

只需要一个选项，将以下内容用中文进行释义：
从Heroku的仪表盘创建一个应用程序
点击右上方的“新建”按钮，然后选择“创建新应用程序”。
创建完后应会自动跳转到“部署”页面。
然后，只需按照该页面上的命令进行操作
（其中(cd my-project/ 部分应替换为先前创建的项目的目录)。

在电脑上访问后，即使离线也能显示出来，而在iPhone上访问后添加到主屏幕就应该变成了PWA。

将来的目标

我打算在未来学习Angular并且希望能够扩展这个PWASAMPLE。(努力目标)