sm_def.yaml

Comment: CalculationStateMachine
StartAt: CleanInput
States:
    CleanInput:
        Type: Task
        Resource: 'arn:aws:states:::lambda:invoke'
        Parameters:
            FunctionName: ${CleanInputLambdaFunction}
            Payload:
                input.$: $
        Next: Multiply
    Multiply:
        Type: Task
        Resource: 'arn:aws:states:::lambda:invoke'
        Parameters:
            FunctionName: ${MultiplyLambdaFunction}
            Payload:
                input.$: $.Payload
        Next: Choice
    Choice:
        Type: Choice
        Choices:
            - 
                Variable: $.Payload.result
                NumericGreaterThanEquals: 20
                Next: Subtract
        Default: Fail
    Subtract:
        Type: Task
        Resource: 'arn:aws:states:::lambda:invoke'
        Parameters:
            FunctionName: ${SubtractLambdaFunction}
            Payload:
                input.$: $.Payload
        Next: Add
    Fail:
        Type: Fail
        Cause: Number Too Small
        Error: NumberTooSmallError
    Add:
        Type: Task
        Resource: 'arn:aws:states:::lambda:invoke'
        Parameters:
            FunctionName: ${AddLambdaFunction}
            Payload:
                input.$: $.Payload
        Next: Divide
    Divide:
        Type: Task
        Resource: 'arn:aws:states:::lambda:invoke'
        Parameters:
            FunctionName: ${DivideLambdaFunction}
            Payload:
                input.$: $.Payload
        End: true