3: Deploying Step Functions

What are step functions?

• A state machine implementation
• Coordinates AWS services into serverless workflows
• Multiple stages/steps; tasks, choices, timeouts
• Can be run parallel or serial

Where to use step funcs?

• Longer than 15m runs
• When functions get bloaty and awkward
• Human approval / business processes
• Parallel execution of lambdas
  • e.g. both separate things need to work