Use the AWS SAM to define a Serverless Function

stelligent-blog-serverless-function-index-get.yml

    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index-get.handler
      CodeUri: src/
      Runtime: nodejs12.x
      AutoPublishAlias: live
      DeploymentPreference: ...
      MemorySize: 128
      Policies:
        - DynamoDBReadPolicy:
            TableName:
              Ref: MyDynamoDBTable
      Environment:
        Variables:
          TABLE_NAME:
            Ref: MyDynamoDBTable
      Events:
        GetDataApi:
          Type: HttpApi
          Properties:
            ApiId:
              Ref: MyApi
            Method: GET
            Path: /clouds
            TimeoutInMillis: 15000
      Description: 'Get data from DynamoDB table'