部署 MERN 堆栈应用程序时出现问题

Question

我无法部署我的全栈应用程序。

就文件夹结构而言，我的存储库看起来完全像这样：

以下是我的 package.json：https：//github.com/bradtraversy/mern_shopping_list

{
"name": "clear",
"version": "1.0.0",
"description": "",
"main": "server.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"start:prod": "NODE_ENV=production nodemon server.js",
"debug": "ndb server.js",
"server": "nodemon server.js",
"client": "cd client && npm start",    
"build": "cd client && npm run build",    
"dev": "concurrently --kill-others-on-fail "npm run server" "npm run client"",
"start": "node server.js",
"heroku-postbuild": "cd client && npm install && npm install --only=dev --no-shrinkwrap && npm run build"    
},
"author": "",
"license": "ISC",
"dependencies": {
"bcryptjs": "^2.4.3",
"body-parser": "^1.19.0",
"compression": "^1.7.4",
"concurrently": "^5.1.0",
"cookie-parser": "^1.4.4",
"cors": "^2.8.5",
"dotenv": "^8.1.0",
"express": "^4.17.1",
"express-mongo-sanitize": "^1.3.2",
"express-rate-limit": "^5.0.0",
"helmet": "^3.21.1",
"hpp": "^0.2.2",
"html-to-text": "^5.1.1",
"jsonwebtoken": "^8.5.1",
"mongoose": "^5.7.1",
"morgan": "^1.9.1",
"multer": "^1.4.2",
"ndb": "^1.1.5",
"nodemailer": "^6.3.0",
"path": "^0.12.7",
"pug": "^2.0.4",
"slugify": "^1.3.5",
"stripe": "^7.9.1",
"validator": "^11.1.0",
"xss-clean": "^0.1.1"
},
"engines": {
"node": "^10"
}
}

Answer 1

你能试试这个吗-

即服务器.js文件内容：-

const express = require("express");
const path = require("path");
const app = express();
require("dotenv").config();
app.use(express.static(path.join(__dirname, "build")));
app.get("/", function(req, res) {
res.sendFile(path.join(__dirname, "build", "index.html"));
});
app.get("/*", function(req, res) {
res.sendFile(path.join(__dirname, "build", "index.html"));
});
app.listen(process.env.PORT || 3000);

这是我的脚本部分：-

"scripts": {
"start:production": "npm install && npm run build && npm run start:prod",
"start:prod": "cross-env NODE_ENV=production node server",
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},

在生产环境中启动命令：-

npm run start:production