如何部署节点js应用程序与heroku作出反应

Question

我尝试将我的MERN应用程序部署到heroku。

在heroku上构建成功后，看不到API路由：

步骤： 在localhost上，我同时运行节点服务器和客户端（create-react-app）。 端口5000上的服务器和端口3000上的客户端。 在此之后，我从API路线/酒店Array获取项目并将其连接到Redux商店并显示它。

正确行为：

Localhost ：工作正常

Heroku ：已损坏（未与API连接）

这是我的server.js文件：

const express = require('express');
const path = require('path');
const app = express();
const http = require('http');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const cookieSession = require('cookie-session');
const passport = require('passport');
const morgan = require('morgan');
const keys = require('./API/config/keys');

//######### MODELS #########
require('./API/models/Users');

//######### SERVICES #########
require('./API/services/passport');

//######### MONGODB CONNECT #########
mongoose.connect(MONGO_CONNECT);

//######### ROUTES #########
const hotelsRoutes = require('./API/routes/hotels');
const countRoutes = require('./API/routes/count');
const topRoutes = require('./API/routes/top');

// Use routes
app.use('/hotels', hotelsRoutes);
app.use('/count', countRoutes);
app.use('/top', topRoutes);

app.use(morgan('dev'));
app.use('/uploads', express.static('uploads'));
app.use(bodyParser.urlencoded({extended: false}));

app.use(bodyParser.json());
app.use(
  cookieSession({
      maxAge: 30 * 24 * 60 * 60 * 1000, // 30 days
      keys: [keys.cookieKey]
  })
);

app.use(passport.initialize());
app.use(passport.session());

require('./API/routes/authRoutes')(app);

app.use(express.static('client/build'));

app.get('*', (req, res) => {
   res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
});

const port = process.env.PORT || 5000;
const server = http.createServer(app);

server.listen(port);

Package.json（服务器）：

{
  "name": "root-react-hotel-app",
  "version": "0.1.0",
  "main": "server.js",
  "scripts": {
    "client": "cd client && yarn start",
    "start": "node server.js",
    "start-api": "nodemon server.js",
    "dev": "concurrently \"yarn start-api\" \"yarn client\"",
    "build": "cd client && npm install && yarn build"
  },
  "devDependencies": {
    //
  },
  "dependencies": {
    //
  }
}

Package.json（客户端）：

{
  "name": "client-react-hotel-app",
  "version": "0.1.0",
  "private": true,
  "proxy": {
    "/auth/google": {
      "target": "http://localhost:5000"
    },
    "/api/*": {
      "target": "http://localhost:5000"
    },
    "/*": {
      "target": "http://localhost:5000"
    }
  },
  "dependencies": {
    // Here are dependencies
  },
  "scripts": {
    "build-css": "node-sass-chokidar src/ -o src/",
    "watch-css": "npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive",
    "start-js": "react-scripts start",
    "start": "npm-run-all -p watch-css start-js",
    "build-js": "react-scripts build",
    "build": "npm-run-all build-css build-js",
    "eject": "react-scripts eject",
    "compile:sass": "node-sass src/css/styles.scss src/css/styles.css -w",
    "generate:doc": "sassdoc src/css/abstracts/_mixins.scss",
    "test": "cross-env NODE_ENV=test jest --config=jest.config.json",
    "test-coverage": "cross-env NODE_ENV=test jest --coverage --config=jest.config.json",
    "test-ci": "cross-env NODE_ENV=test jest --config=jest.config.json --coverage && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js"
  },
  "devDependencies": {
     // Here are devDependencies
  }
}

还尝试使用 static.json 文件和Procfile：

{
  "root": "client/build/",
  "setupFiles": [
    "<rootDir>/client/src/setupTests.js"
  ]
}

任何人都可以提供帮助吗？

Answer 1

由于快递服务器同时提供了您的反应包和api路线，因此：

app.get('*', (req, res) => {
   res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
});

在部署到heroku（生产模式）时，您需要在“ app.get”中保护您的api路由。您可以使用一个简单的正则表达式来提供除'/ api'之外（或您的api端点的样子，在上述情况下为/ API）之外的所有到React包的路由。它可以在本地运行，因为您在不同的端口（而不是同一台服务器）上运行api和react应用。

通常是这样的：

if (process.env.NODE_ENV === 'production') {
      app.get(/^\/(?!api).*/, (req, res) => { // don't serve react app to api routes
        res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
      });
};