AWS Step function
- Serverless function orchestrator
- Series of checkpoints & Event driven workflow that maintatin the application state
- Step Functions manages sequencing, error handling, retry logic, and state, removing a significant operational burden from your team.
As your applications execute, Step Functions maintains application state,
tracking exactly which workflow step your application is in, and stores an event log of data that is passed between application components.
That means that if networks fail or components hang, your application can pick up right where it left off.
Workflow as state machine
Create using Amazon state language
you can run a serverless workflow on a time-based schedule.
Amazon CloudWatch Events provides a near real-time stream of system events that describe the changes and notifications for your AWS resources.
From this stream, you can create rules to route specific events to AWS Step Functions and invoke a state machine to perform further processing.
AWS Step Functions allows you to coordinate multiple services into serverless workflows so you can build and update automated processes quickly.