serverless.yml

service: samples-stepf-api-sync

plugins:
  - serverless-step-functions
  - serverless-pseudo-parameters

provider:
  name: aws
  runtime: nodejs8.10
  stage: ${opt:stage, 'dev'}
  region: us-east-1
  memorySize: 128
  iamRoleStatements:
    - Effect: Allow
      Action:
        - states:StartExecution
      Resource:
        - ${self:resources.Outputs.CreateMessageStateMachineArn.Value}
    - Effect: Allow
      Action:
        - states:GetExecutionHistory
      Resource:
        - "*"

functions:
  createMessage:
    handler: handler/createMessage.handle
    environment:
      STATE_MACHINE_ARN: ${self:resources.Outputs.CreateMessageStateMachineArn.Value}
    events:
      - http:
          path: /messages
          method: POST
  formatMessage:
    handler: handler/formatMessage.handle
  toUppercase:
    handler: handler/toUpperCase.handle

stepFunctions:
  stateMachines:
    createMessage:
      name: ${self:service}-${self:provider.stage}-createMessage
      definition:
        Comment: A sample state machine that creates a Hello World message and converts it to uppercase.
        StartAt: FormatMessage
        States:
          FormatMessage:
            Type: Task
            Resource: "arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:${self:service}-${self:provider.stage}-formatMessage"
            Next: ToUppercase
          ToUppercase:
            Type: Task
            Resource: "arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:${self:service}-${self:provider.stage}-toUppercase"
            Next: EndState
          EndState:
            Type: Pass
            End: true

resources:
  Outputs:
    CreateMessageStateMachineArn:
      Description: ARN of the CreateMessage Step Functions State Machine
      Value:
        Ref: SamplesDashstepfDashapiDashsyncDashdevDashcreateMessage