type Mutation {
  publishStatusUpdate(
    orderId: ID!
    status: Status!
    prevStatus: Status
    updatedAt: AWSDateTime!
  ): StatusUpdate @aws_api_key @aws_iam
}

type Query {
  getStatus(orderId: ID!): Boolean
}

enum Status {
  PENDING
  IN_PROGRESS
  SHIPPED
  DELIVERED
  COMPLETE
}

type StatusUpdate @aws_api_key @aws_iam {
  orderId: ID!
  status: Status!
  prevStatus: Status
  updatedAt: AWSDateTime!
}

type Subscription {
  onStatusUpdate(orderId: ID!): StatusUpdate
    @aws_subscribe(mutations: ["publishStatusUpdate"])
}

schema {
  query: Query
  mutation: Mutation
  subscription: Subscription
}