CloudFormation Sample with Lambda function

sample.yml

AWSTemplateFormatVersion: 2010-09-09
Description: CloudFormation Sample with Lambda function
Resources:
  LambdaFunction:
    Type: AWS::Lambda::Function
    DependsOn:
      - LambdaRole
    Properties:
      Description: Lambda sample called from Connect
      Code:
        ZipFile: !Sub |
          exports.handler = async function(event, context) {
            return {message: "Welcome to Class Method Inc."};
          }
      Handler: index.handler
      Role: !GetAtt 
        - LambdaRole
        - Arn
      Runtime: nodejs8.10
      Timeout: 8
      MemorySize: 128
  LambdaRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          Effect: Allow
          Principal:
            Service:
              - lambda.amazonaws.com
          Action:
            - sts:AssumeRole
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
  # Connectから呼び出すためのパーミッション
  LambdaFunctionInvokePermission:
    Type: AWS::Lambda::Permission
    DependsOn: LambdaFunction
    Properties:
      FunctionName:
        Ref: LambdaFunction
      Action: lambda:InvokeFunction
      Principal: connect.amazonaws.com
      SourceAccount:
        Ref: AWS::AccountId
Outputs:
  # 問い合わせフローに設定するLambdaのARN
  LambdaARN:
    Description: ARN of the Lambda function
    Value:
      Fn::GetAtt:
        - LambdaFunction
        - Arn