> ## Documentation Index
> Fetch the complete documentation index at: https://docs.base39.com.br/llms.txt
> Use this file to discover all available pages before exploring further.

# Stream domain events via SSE

> Establishes a Server-Sent Events connection for real-time domain events. Auth via httpOnly cookie set by POST /sse/auth.



## OpenAPI

````yaml /api-reference/openapi.json get /v2/sse/events
openapi: 3.1.0
info:
  title: Base39 API
  description: Base39 API
  version: 1.0.0
  contact:
    name: Base39 Team
    url: https://base39.com.br
    email: suporte@base39.com.br
  termsOfService: https://base39.com.br/termos
  license:
    name: Proprietary
    url: https://base39.com.br/termos
servers:
  - url: http://localhost:3000
    description: Local
  - url: https://api.dev.base39.cloud
    description: Development
  - url: https://api.base39.com.br
    description: Production
security:
  - OAuth2: []
tags:
  - name: pages
    description: Profiles and reports pages
  - name: pipelines
    description: Pipeline boards (kanban) of pages
  - name: blocks
    description: Blocks operations
  - name: search
    description: Search across content
  - name: targets
    description: Lookup targets via datasets
  - name: CognitoTriggers
    description: Cognito triggers
paths:
  /v2/sse/events:
    get:
      tags:
        - sse
      summary: Stream domain events via SSE
      description: >-
        Establishes a Server-Sent Events connection for real-time domain events.
        Auth via httpOnly cookie set by POST /sse/auth.
      operationId: sse_stream
      parameters:
        - name: last_event_id
          required: false
          in: query
          description: >-
            Last received Redis Stream event ID. Events from the previous 24
            hours are replayed.
          schema:
            type: string
        - name: topics
          required: false
          in: query
          description: >-
            Authorized topic subscriptions: the current organization and the
            authenticated user notifications.
          schema:
            type: array
            items:
              type: string
      responses:
        '200':
          description: SSE stream of domain events
        '401':
          description: Unauthorized - invalid or missing JWT token
        '403':
          description: Forbidden - topic is not authorized for the authenticated user
components:
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://id.local.base39.cloud/oauth2/authorize
          tokenUrl: https://id.local.base39.cloud/oauth2/token
          scopes:
            profile: Read user profile
            email: Read user email
            openid: OpenID authentication
      description: OAuth2 Authorization Code flow

````