Creating an EventBridge rule with API Gateway as the target in AWS SAM

template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Event Bridge -> API Gateway

Resources:
  RestApiGateway:
    Type: AWS::Serverless::Api
    Properties:
      StageName: Prod
      
  # Function here for the route and testing
  RestApiFunction:
    Type: AWS::Serverless::Function
    Properties:
      InlineCode: |
        exports.handler = async (event) => {
          console.log(JSON.stringify(event))
          const response = {
            statusCode: 200,
            body: JSON.stringify('Hello from Lambda!'),
          };
          return response;
        };
      Handler: index.handler
      Runtime: nodejs12.x
      Events:
        FetchRest:
          Type: Api
          Properties:
            RestApiId: !Ref RestApiGateway
            Method: POST
            Path: /
            
  ### API Gateway ARNs: https://docs.aws.amazon.com/apigateway/latest/developerguide/arn-format-reference.html
  ### More on targets: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-target.html
  ### More on PutTargets: https://docs.aws.amazon.com/eventbridge/latest/APIReference/API_PutTargets.html
  MyBusRule:
    Type: AWS::Events::Rule
    Properties: 
      Description: Event bridge rule to trigger REST API
      EventPattern: { "source": [ "myBusEvent" ] }
      Targets: 
        - Arn: !Sub arn:${AWS::Partition}:execute-api:${AWS::Region}:${AWS::AccountId}:${RestApiGateway}/Prod/POST/*
          Id: MyRestTarget