AWS API Gateway with Step Function

Question

I want a sample to integrate AWS API Gateway with Step Function. I have read this tutorial Creating a Step Functions API Using API Gateway but that tutorial needs me to send

Answer 1

Instead of directly exposing your step function via API Gateway by choosing API Gateway Integration Type "AWS Service", create a Lambda function that calls your Step Function and expose that Lambda function via API Gateway using Integration Type "Lambda". Then you can configure your API Gateway and Lambda function to accept whatever input format that you desire and you could hard-code the stateMacheArn value in your Lambda function or set it as a Lambda environment variable, so that the API Gateway consumer doesn't need to know anything about the ARN.