feat(aws-eventbridge-sns , aws-events-rule-sns, aws-events-rule-lambda): custom event bus support (#362)

* enhanced construct to support custom EventBus

* fix linting issues

* fix PR review comments

* refactoring and use IEventBus instead of EventBus

* added support for custom event bus

* update the props naming convention to align with existing constructs

* updated the props documentation

* updated props naming convention

* enhance aws-events-rule-lambda to support custom eventbus

* refactoring & enhanced aws-events-rule-sns to support custom eventbus

* update viperlight to fix the test

* Address PR comments

Co-authored-by: santhosh <>

Author: surukonda

.viperlightignore

@@ -28,8 +28,8 @@ source/patterns/@aws-solutions-constructs/aws-lambda-sqs-lambda/test/lambda-sqs-
 source/patterns/@aws-solutions-constructs/aws-lambda-sqs-lambda/test/lambda-sqs-lambda.test.ts:67
 source/patterns/@aws-solutions-constructs/aws-lambda-step-function/test/lambda-step-function.test.ts:130
 source/patterns/@aws-solutions-constructs/aws-lambda-stepfunctions/test/lambda-stepfunctions.test.ts:130
-source/patterns/@aws-solutions-constructs/aws-events-rule-sns/test/events-rule-sns-topic.test.ts:243
-source/patterns/@aws-solutions-constructs/aws-eventbridge-sns/test/eventbridge-sns-topic.test.ts:243
+source/patterns/@aws-solutions-constructs/aws-events-rule-sns/test/events-rule-sns-topic.test.ts:255
+source/patterns/@aws-solutions-constructs/aws-eventbridge-sns/test/eventbridge-sns-topic.test.ts:255
 source/patterns/@aws-solutions-constructs/aws-events-rule-sqs/test/events-rule-sqs-queue.test.ts:131
 source/patterns/@aws-solutions-constructs/aws-eventbridge-sqs/test/eventbridge-sqs-queue.test.ts:131
 source/patterns/@aws-solutions-constructs/aws-dynamodb-stream-lambda/test/dynamodb-stream-lambda.test.ts:105

source/patterns/@aws-solutions-constructs/aws-eventbridge-lambda/lib/index.ts

@@ -28,31 +28,31 @@ export interface EventbridgeToLambdaProps {
    *
    * @default - None
    */
-  readonly existingLambdaObj?: lambda.Function,
+  readonly existingLambdaObj?: lambda.Function;
   /**
    * User provided props to override the default props for the Lambda function.
    *
    * @default - Default props are used
    */
-  readonly lambdaFunctionProps?: lambda.FunctionProps,
+  readonly lambdaFunctionProps?: lambda.FunctionProps;
   /**
    * Existing instance of a custom EventBus.
    *
    * @default - None
    */
-  readonly existingEventBusInterface?: events.IEventBus,
+  readonly existingEventBusInterface?: events.IEventBus;
   /**
    * A new custom EventBus is created with provided props.
    *
    * @default - None
    */
-  readonly eventBusProps?: events.EventBusProps,
+  readonly eventBusProps?: events.EventBusProps;
   /**
    * User provided eventRuleProps to override the defaults
    *
    * @default - None
    */
-  readonly eventRuleProps: events.RuleProps
+  readonly eventRuleProps: events.RuleProps;
 }
 
 export class EventbridgeToLambda extends Construct {