So far, we have learned about writing serverless apps that involve only one AWS Lambda function. However, in reality, you will need multiple distributed apps to perform the complex tasks that you will be developing. AWS Step Functions is a service built by AWS, which helps you to coordinate multiple components (in our case, AWS Lambda functions) of a distributed application using visual workflows. As individual components of distributed applications each perform a discrete function, it helps to change and scale the individual components easily and quickly without having to worry about the other pieces of the distributed applications, as coordination between these discrete components is handled by AWS Step Functions.
AWS Step Functions provides a graphical user interface (GUI) through which you can visualize the components of your distributed application...
