account-service.yaml

asyncapi: 2.0.0
info:
  title: Account Service
  version: '1.0.0'
  description: |
    This service is responsible for managing user accounts in the system.
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0

servers:
  production:
    url: mqtt://test.mosquitto.org
    protocol: mqtt
    description: Test MQTT broker

channels:
  user/signedup:
    subscribe:
      operationId: emitUserSignUpEvent
      message:
        $ref : '#/components/messages/UserSignedUp'

components:
  messages:
    UserSignedUp:
      name: userSignedUp
      title: User signed up event
      summary: Inform about a new user registration in the system
      contentType: application/json
      payload:
        $ref: '#/components/schemas/userSignedUpPayload'

  schemas:
    userSignedUpPayload:
      type: object
      properties:
        firstName:
          type: string
          description: "foo"
        lastName:
          type: string
          description: "bar"
        email:
          type: string
          format: email
          description: "baz"
        createdAt:
          type: string
          format: date-time  

A bit late to the party i guess but reading the blogpost https://www.asyncapi.com/blog/understanding-asyncapis I was assuming that Acccount Service should publish the emitUserSignUpEvent but here it is defined as subscribe. What is the correct direction?