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我正在按照这个基本示例（https://medium.com/hackernoon/tdd-means-zen-along-with-serverless-means-nirvana-a39a76ee8e63）设置 serverless-offline 以对无服务器项目进行单元测试。

不幸的是，我无法让 serverless-offline 的初始运行正常工作。运行“serverless offline start”后，控制台输出不显示 GET 方法，对 localhost:3000 的请求仅返回“Cannot GET /”。

有什么想法我在这里想念的吗？提前致谢。

我的 serverless.yml：


provider:
  name: aws
  runtime: nodejs10.x
functions:
  hello:
    handler: handler.hello
    events:
      - http:
        path: ''
        method: get
plugins:
  - serverless-offline
  - serverless-mocha-plugin

我的 package.json：

  "name": "my-api",
  "version": "1.0.0",
  "description": "",
  "main": "handler.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "mongodb": "^3.3.3"
  },
  "devDependencies": {
    "serverless-mocha-plugin": "^1.11.0",
    "serverless-offline": "^5.12.0"
  }
}

我的 handler.js：


module.exports.hello = async event => {
  return {
    statusCode: 200,
    body: JSON.stringify(
      {
        message: 'Go Serverless v1.0! Your function executed successfully!',
        input: event
      },
      null,
      2
    )
  };
};

控制台输出：

$ sls offline start
Serverless: Load command interactiveCli
Serverless: Load command config
Serverless: Load command config:credentials
Serverless: Load command config:tabcompletion
Serverless: Load command config:tabcompletion:install
Serverless: Load command config:tabcompletion:uninstall
Serverless: Load command create
Serverless: Load command install
Serverless: Load command package
Serverless: Load command deploy
Serverless: Load command deploy:function
Serverless: Load command deploy:list
Serverless: Load command deploy:list:functions
Serverless: Load command invoke
Serverless: Load command invoke
Serverless: Load command invoke:local
Serverless: Load command info
Serverless: Load command logs
Serverless: Load command metrics
Serverless: Load command print
Serverless: Load command remove
Serverless: Load command rollback
Serverless: Load command rollback:function
Serverless: Load command slstats
Serverless: Load command plugin
Serverless: Load command plugin
Serverless: Load command plugin:install
Serverless: Load command plugin
Serverless: Load command plugin:uninstall
Serverless: Load command plugin
Serverless: Load command plugin:list
Serverless: Load command plugin
Serverless: Load command plugin:search
Serverless: Load command config
Serverless: Load command config:credentials
Serverless: Load command rollback
Serverless: Load command rollback:function
Serverless: Load command offline
Serverless: Load command offline:start
Serverless: Load command create
Serverless: Load command create:test
Serverless: Load command create:function
Serverless: Load command invoke
Serverless: Load command invoke:test
Serverless: Load command login
Serverless: Load command logout
Serverless: Load command generate-event
Serverless: Load command test
Serverless: Load command dashboard
Serverless: Invoke offline:start
Serverless: Starting Offline: dev/us-east-1.
[offline] options: { apiKey: 'XXXXXXXXXXXXXXXXXX',
  cacheInvalidationRegex: /node_modules/,
  corsAllowOrigin: [ '*' ],
  corsAllowCredentials: true,
  corsAllowHeaders: [ 'accept', 'content-type', 'x-api-key', 'authorization' ],
  corsExposedHeaders: [ 'WWW-Authenticate', 'Server-Authorization' ],
`  
  disableCookieValidation: false,
  enforceSecureCookies: false,
  exec: '',
  hideStackTraces: false,
  host: 'localhost',
  httpsProtocol: '',
  location: '.',
  noAuth: false,
  noEnvironment: false,
  noTimeout: false,

  port: 3000,
  prefix: '/',
  preserveTrailingSlash: false,
  printOutput: false,
  providedRuntime: '',
  showDuration: false,
  stage: 'dev',
  region: 'us-east-1',
  resourceRoutes: false,
  skipCacheInvalidation: false,
  useSeparateProcesses: false,
  websocketPort: 3001,
  corsConfig:
   { credentials: true,
     exposedHeaders: [ 'WWW-Authenticate', 'Server-Authorization' ],
     headers: [ 'accept', 'content-type', 'x-api-key', 'authorization' ],
     origin: [ '*' ] } }
[offline] funOptions {
  "funName": "hello",
  "funTimeout": 30000,
  "handlerName": "hello",
  "handlerPath": "/Users/rocky/Documents/Projects/garmin/sls-troubleshooting/my-api/ha
ndler",
  "runtime": "nodejs10.x"
}

[offline] hello runtime nodejs10.x
Serverless: Routes for hello:
[offline] Response Content-Type  application/json
Serverless: POST /{apiVersion}/functions/my-api-dev-hello/invocations

Serverless: Offline [HTTP] listening on http://localhost:3000
Serverless: Enter "rp" to replay the last request
4

1 回答 1

3

事实证明，这是我的 serverless.yml 中的一个缩进问题。示例博客没有在 -http 之后缩进路径、方法或 cors。感谢https://stackoverflow.com/a/58226113/296047为我指明了正确的方向。

旁注，重新启动计算机并从头开始尝试此博客示例后，我还收到了错误消息：

{"statusCode":404,"error":"Serverless-offline: route not found.","currentRoute":"get - /","existingRoutes":["post - /{apiVersion}/functions/my-api-prod-hello/invocations"]}

希望这可以帮助那些也在经历我刚刚经历的为期一天的故障排除的其他人。

于 2019-11-02T07:46:51.333 回答