Aws lambda 在handler.js中使用serverless.yml中的stage变量

我想在

handler.js

serverless.yml

provider:
  name: aws
  runtime: nodejs10.x
  region: ap-northeast-2
  stage: ${opt:stage, "dev"}
...

handler.js

export const hello = () => {
  // I'd like to use the stage in here,
  const isDev = stage === 'dev';
  return {
    statusCode: 200,
    body: {
      message: `isDev ${isDev}`
    }
  }
}

---

如果您的集成方法是“Lambda代理集成”，那么您应该能够通过

event.requestContext.stage

访问stage

export const hello = (event) => {
  // I'd like to use the stage in here,
  console.log('stage is: ', event.context.stage)
  const isDev = stage === 'dev';
  return {
    statusCode: 200,
    body: {
      message: `isDev ${isDev}`
    }
  }
}

---

我找不到

event.context.stage

，但我刚刚得到了

event.requestContext.stage

我刚刚找到了另一个使用

process.env的答案，但我觉得你的答案更好。