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In this sample, we’ll use an Amplify custom resource to add an AWS Step Functions workflow to our Amplify project.

• How to create a Step Functions workflow as an Amplify custom resource using the AWS CDK.
• How to connect our custom resource to an existing Amplify-managed GraphQL API.

The proposed solution consists of the following elements:

• Our sample web application is a customer feedback form built using Vite and Amplify UI.
• Submitting the feedback form will trigger a Step Functions express workflow created as an Amplify custom resource via an AWS AppSync API managed by Amplify.
• The Step Function workflow will detect the sentiment of the submitted feedback using Amazon Comprehend’s DetectSentiment API.
• Next, the workflow will store the feedback and detected sentiment in an Amplify-managed Amazon DynamoDB table.
• If a non-positive sentiment is detected, the workflow will trigger a notification to a customer support email address using the Amazon Simple Notification Service (Amazon SNS).
• Depending on the result of the sentiment analysis, our web application will display different confirmation messages to the customer.

The Step Functions workflow looks like this:

From the perspective of the user of our web application, the result will look like this:

For a walkthrough of the implementation, check out the blog post.

See CONTRIBUTING for more information.

This library is licensed under the MIT-0 License. See the LICENSE file.