Merge pull request #285 from mickychetta/issue-271

feat(aws-lambda-stepfunctions): aws-lambda-stepfunctions implementation

Author: mickychetta

.viperlightignore

@@ -24,6 +24,7 @@ source/patterns/@aws-solutions-constructs/aws-iot-lambda-dynamodb/test/iot-lambd
 source/patterns/@aws-solutions-constructs/aws-lambda-dynamodb/test/lambda-dynamodb.test.ts:186
 source/patterns/@aws-solutions-constructs/aws-lambda-sqs-lambda/test/lambda-sqs-lambda.test.ts:66
 source/patterns/@aws-solutions-constructs/aws-lambda-step-function/test/lambda-step-function.test.ts:129
+source/patterns/@aws-solutions-constructs/aws-lambda-stepfunctions/test/lambda-stepfunctions.test.ts:129
 source/patterns/@aws-solutions-constructs/aws-events-rule-sns/test/events-rule-sns-topic.test.ts:243
 source/patterns/@aws-solutions-constructs/aws-events-rule-sqs/test/events-rule-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-lambda-step-function/README.md

@@ -3,7 +3,9 @@
 
 ---
 
-![Stability: Experimental](https://img.shields.io/badge/stability-Experimental-important.svg?style=for-the-badge)
+![Stability: Deprecated](https://img.shields.io/badge/STABILITY-DEPRECATED-red?style=for-the-badge)
+
+> Some of our early constructs don’t meet the naming standards that evolved for the library. We are releasing completely feature compatible versions with corrected names. The underlying implementation code is the same regardless of whether you deploy the construct using the old or new name. We will support both names for all 1.x releases, but in 2.x we will only publish the correctly named constructs.
 
 > All classes are under active development and subject to non-backward compatible changes or removal in any
 > future version. These are not subject to the [Semantic Versioning](https://semver.org/) model.

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

@@ -15,7 +15,7 @@
 import * as cloudwatch from '@aws-cdk/aws-cloudwatch';
 import * as lambda from '@aws-cdk/aws-lambda';
 import * as sfn from '@aws-cdk/aws-stepfunctions';
-import * as defaults from '@aws-solutions-constructs/core';
+import { LambdaToStepfunctions } from "@aws-solutions-constructs/aws-lambda-stepfunctions";
 import { Construct } from '@aws-cdk/core';
 import * as logs from '@aws-cdk/aws-logs';
 
@@ -80,28 +80,12 @@ export class LambdaToStepFunction extends Construct {
    */
   constructor(scope: Construct, id: string, props: LambdaToStepFunctionProps) {
     super(scope, id);
-    defaults.CheckProps(props);
+    const convertedProps: LambdaToStepFunctionProps = { ...props };
+    const wrappedConstruct: LambdaToStepFunction = new LambdaToStepfunctions(this, `${id}-wrapped`, convertedProps);
 
-    // Setup the state machine
-    [this.stateMachine, this.stateMachineLogGroup] = defaults.buildStateMachine(this, props.stateMachineProps,
-      props.logGroupProps);
-
-    // Setup the Lambda function
-    this.lambdaFunction = defaults.buildLambdaFunction(this, {
-      existingLambdaObj: props.existingLambdaObj,
-      lambdaFunctionProps: props.lambdaFunctionProps,
-    });
-
-    // Assign the state machine ARN as an environment variable
-    const stateMachineEnvironmentVariableName = props.stateMachineEnvironmentVariableName || 'STATE_MACHINE_ARN';
-    this.lambdaFunction.addEnvironment(stateMachineEnvironmentVariableName, this.stateMachine.stateMachineArn);
-
-    // Grant the start execution permission to the Lambda function
-    this.stateMachine.grantStartExecution(this.lambdaFunction);
-
-    if (props.createCloudWatchAlarms === undefined || props.createCloudWatchAlarms) {
-      // Deploy best-practice CloudWatch Alarm for state machine
-      this.cloudwatchAlarms = defaults.buildStepFunctionCWAlarms(this, this.stateMachine);
-    }
+    this.lambdaFunction = wrappedConstruct.lambdaFunction;
+    this.stateMachine = wrappedConstruct.stateMachine;
+    this.stateMachineLogGroup = wrappedConstruct.stateMachineLogGroup;
+    this.cloudwatchAlarms = wrappedConstruct.cloudwatchAlarms;
   }
 }

source/patterns/@aws-solutions-constructs/aws-lambda-step-function/package.json

@@ -59,6 +59,7 @@
     "@aws-cdk/aws-logs": "0.0.0",
     "@aws-cdk/core": "0.0.0",
     "@aws-solutions-constructs/core": "0.0.0",
+    "@aws-solutions-constructs/aws-lambda-stepfunctions": "0.0.0",
     "constructs": "^3.2.0"
   },
   "devDependencies": {
@@ -87,6 +88,7 @@
     "@aws-cdk/aws-stepfunctions": "0.0.0",
     "@aws-cdk/core": "0.0.0",
     "@aws-solutions-constructs/core": "0.0.0",
+    "@aws-solutions-constructs/aws-lambda-stepfunctions": "0.0.0",
     "constructs": "^3.2.0",
     "@aws-cdk/aws-logs": "0.0.0"
   },