AsyncAPI Components

AsyncAPI components are described in the AsyncAPI specification.

Note: The components section can contain securitySchemes, however, domains cannot contain them. Domains are for components that are referenced via the $ref keyword, such as $ref: '#/components/schemas/MySchema'. Security schemes, however, are referenced directly by their name:

security:
  - bearerAuth: []  # "bearerAuth" is the name of the security scheme

so they must be defined in the API where they will be used.

AsyncAPI domains need to have components under the components section.

components:
  messages:
     ...
  schemas:
     ...
  parameters:
     ...
  messageTraits:
     ...

See AsyncAPI Domain Example.