Babel 并将 Nodejs 部署到 Google App Engine

Question

我是一个新手 nodejs。我在将 nodejs 应用程序部署到谷歌应用程序引擎时遇到了麻烦。这是我的错误，我一直在尝试修复它，但它不起作用。我已经安装了 babel。

错误

更新服务 [默认]...失败。
错误：（gcloud.app.deploy）错误响应：[9] 应用启动错误：

restaurant_api@1.0.0 预启动 /app npm 运行 -s 构建

你错误地安装了 babel 包，它在 Babel 6 中是无操作的。 Babel 的 CLI 命令已从 babel 包移至 babel-cli 包。

npm 卸载 babel

npm install --save-dev babel-cli

这是我的 package.json

 "main": "dist",
 "scripts": {
    "dev": "NODE_ENV=development nodemon -w src --exec \"babel-node src --presets es2015,stage-0\"",
    "build": "babel src -s -D -d dist --presets es2015,stage-0",
    "start": "NODE_ENV=production pm2 start dist",
    "prestart": "npm run -s build",
    "lint": "eslint src",
    "test": "echo \"Error: no test specified\" && exit 1",
    "babel-version": "babel --version"
  },
  "eslintConfig": {
    "parserOptions": {
      "ecmaVersion": 7,
      "sourceType": "module"
    },
    "env": {
      "node": true
    },
    "rules": {
      "no-console": 0,
      "no-unused-vars": 1
    }
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "babel": "^6.23.0",
    "body-parser": "^1.17.0",
    "express": "^4.15.0",
    "express-jwt": "^5.1.0",
    "jsonwebtoken": "^7.3.0",
    "mongoose": "^4.8.5",
    "passport": "^0.3.2",
    "passport-local": "^1.0.0",
    "passport-local-mongoose": "^4.0.0",
    "pm2": "^2.4.2"
  },
  "devDependencies": {
    "babel-cli": "^6.23.0",
    "babel-eslint": "^7.1.1",
    "babel-preset-es2015": "^6.22.0",
    "babel-preset-stage-0": "^6.22.0",
    "eslint": "^3.16.1"
  }

Answer 1

问题很简单，如果你看清楚GAE，没有安装dev-dependencies。所以把你的 dev-deps 移到 deps 里面，就像我做的那样，babel no found error 就消失了。

    {
  "name": "scraping",
  "version": "0.3.0",
  "description": "Starter project for an ES6 RESTful Express API",
  "main": "dist",
  "scripts": {
    "dev": "nodemon -w src --exec \"babel-node src --presets es2015,stage-0\"",
    "build": "babel src -s -D -d dist --presets es2015,stage-0",
    "start": "node dist",
    "prestart": "npm run -s build",
    "test": "eslint src"
  },
  "eslintConfig": {
    "extends": "eslint:recommended",
    "parserOptions": {
      "ecmaVersion": 7,
      "sourceType": "module"
    },
    "env": {
      "node": true
    },
    "rules": {
      "no-console": 0,
      "no-unused-vars": 1
    }
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/developit/express-es6-rest-api.git"
  },
  "author": "Saransh  Sharma <jason@developit.ca>",
  "license": "MIT",
  "dependencies": {
    "body-parser": "^1.13.3",
    "compression": "^1.5.2",
    "cors": "^2.7.1",
    "express": "^4.13.3",
    "morgan": "^1.8.0",
    "resource-router-middleware": "^0.6.0",
    "@jonstuebe/scraper": "^0.1.4",
    "babel-cli": "^6.9.0",
    "babel-core": "^6.9.0",
    "babel-preset-es2015": "^6.9.0",
    "babel-preset-stage-0": "^6.5.0",
    "eslint": "^3.1.1",
    "nodemon": "^1.9.2"
  },
  "devDependencies": {
    "babel-cli": "^6.9.0",
    "babel-core": "^6.9.0",
    "babel-preset-es2015": "^6.9.0",
    "babel-preset-stage-0": "^6.5.0",
    "eslint": "^3.1.1",
    "nodemon": "^1.9.2"
  },
  "bugs": {
    "url": "https://github.com/developit/express-es6-rest-api/issues"
  },
  "homepage": "https://github.com/developit/express-es6-rest-api#readme",
  "keywords": [
    "scraper",
    "product",
    "from",
    "amazon"
  ]
}

Answer 2

您需要全局安装 babel-cli，即运行命令“npm install babel-cli -g”作为构建 npm 脚本的一部分，或者创建一个预安装脚本来安装它，如果您想保留它更多组织起来以防您以后需要添加更多内容。

"scripts": {
"dev": "NODE_ENV=development nodemon -w src --exec \"babel-node src --presets es2015,stage-0\"",
"build": "npm install bable-cli -g && babel src -s -D -d dist --presets es2015,stage-0",

Answer 3

线索在错误信息中。

在你的 devDependencies 部分，你已经包含了 babel-cli。 但是，您的依赖项部分仍然引用了"babel": "^6.23.0"。

要么删除这一行，要么用 babel-cli 替换它，留下：

"dependencies": {
  "babel-cli": "^6.23.0",
  "body-parser": "^1.17.0",
  "express": "^4.15.0",
  "express-jwt": "^5.1.0",
  "jsonwebtoken": "^7.3.0",
  "mongoose": "^4.8.5",
  "passport": "^0.3.2",
  "passport-local": "^1.0.0",
  "passport-local-mongoose": "^4.0.0",
  "pm2": "^2.4.2"
},