无法确定 AWS Lambda 无服务器函数的事件类型答案

【问题标题】：Unable to determine event type for AWS Lambda serverless function无法确定 AWS Lambda 无服务器函数的事件类型
【发布时间】：2021-02-09 00:53:55
【问题描述】：

我有一个非常简单的处理程序，我用它来熟悉无服务器 lambda 函数。

const example: APIGatewayProxyHandler = async event => {
  console.log(JSON.stringify(event, null, 2));
  return {
    statusCode: 200,
    body: JSON.stringify({
      message: 'Success',
    }),
  };
};

这是我的 serverless.yml 文件：

service: lambda-example
frameworkVersion: '2'

provider:
  name: aws
  runtime: nodejs12.x

plugins:
  - serverless-offline

functions:
  example:
    handler: lib/handler.example
    events:
      - http:
          path: example
          method: get
          integration: lambda

当我点击 API 时，它工作得很好......

{
  statusCode: 200,
  body: "{"message":"Success"}"
}

我正在使用此 URL 来触发事件 http://localhost:3000/dev/example?url=https://google.com/，并且当端点被命中时，我正在控制台记录事件本身...

{
  "body": {},
  "method": "GET",
  "principalId": "offlineContext_authorizer_principalId",
  "stage": "dev",
  "cognitoPoolClaims": {
    "sub": ""
  },
  "enhancedAuthContext": {
    "principalId": "offlineContext_authorizer_principalId"
  },
  "headers": {
    "Host": "localhost:3000",
    "Connection": "keep-alive",
    "Cache-Control": "max-age=0",
    "Upgrade-Insecure-Requests": "1",
    "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36",
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "Sec-Fetch-Site": "none",
    "Sec-Fetch-Mode": "navigate",
    "Sec-Fetch-User": "?1",
    "Sec-Fetch-Dest": "document",
    "Accept-Encoding": "gzip, deflate, br",
    "Accept-Language": "en-US,en;q=0.9,la;q=0.8"
  },
  "query": {
    "url": "https://google.com/"
  },
  "path": {},
  "identity": {
    "accountId": "offlineContext_accountId",
    "apiKey": "offlineContext_apiKey",
    "apiKeyId": "offlineContext_apiKeyId",
    "caller": "offlineContext_caller",
    "cognitoAuthenticationProvider": "offlineContext_cognitoAuthenticationProvider",
    "cognitoAuthenticationType": "offlineContext_cognitoAuthenticationType",
    "sourceIp": "127.0.0.1",
    "user": "offlineContext_user",
    "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36",
    "userArn": "offlineContext_userArn"
  },
  "stageVariables": {},
  "requestPath": "/example"
}

我有兴趣访问该对象的“查询”属性，但是当我尝试时 TypeScript 对我很生气......

console.log(event.query);

===

Property 'query' does not exist on type 'APIGatewayProxyEvent'.

查询属性非常清楚地存在于事件对象上，如我的控制台日志中所示，因此我假设我错误地键入了此函数，但我似乎找不到正确的类型。我在这里做错了什么？

附加信息（package.json）：

"dependencies": {
  "axios": "^0.21.0",
  "cheerio": "^1.0.0-rc.3"
},
"devDependencies": {
  "@types/aws-lambda": "^8.10.64",
  "@types/cheerio": "^0.22.22",
  "@types/node": "^14.14.2",
  "@typescript-eslint/eslint-plugin": "^4.5.0",
  "@typescript-eslint/parser": "^4.5.0",
  "eslint": "^7.12.0",
  "eslint-config-prettier": "^6.14.0",
  "husky": "^4.3.0",
  "prettier": "^2.1.2",
  "prettier-plugin-organize-imports": "^1.1.1",
  "serverless-dotenv-plugin": "^3.1.0",
  "serverless-offline": "^6.8.0",
  "typescript": "^4.0.3"
}

【问题讨论】：

标签： aws-lambda serverless-framework serverless aws-serverless

【解决方案1】：

原来问题出在

integration: lambda

添加到我的 serverless.yml 文件。当我删除这一行时，APIGatewayProxyHandler 接口按预期工作。

【讨论】：