dialogbrain-com Listen Public API

openapi: 3.2.0
info:
  title: DialogBrain v2 API Gateway Listen Public API
  description: Clean refactored API gateway with minimal vertical slice
  version: 0.1.0
tags:
- name: listen-public
paths:
  /public/listen/{token}/session:
    get:
      tags:
      - listen-public
      summary: Public Session
      description: 'Fetch session metadata for a public listener link.


        Args:

        token: Share token from URL.

        db: Shared database session.


        Returns:

        Session metadata: active status, title, languages.


        Raises:

        HTTPException: 404 if token invalid/revoked/expired.'
      operationId: public_session_public_listen__token__session_get
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
          title: Token
      - name: lang
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Lang
      - name: pid
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Pid
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicSessionResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /public/listen/{token}/join:
    post:
      tags:
      - listen-public
      summary: Public Join
      description: 'Mint a subscribe-only LiveKit token for a public listener.


        Args:

        token: Share token from URL.

        pid: Stable per-page listener id (same value the /live page beacons).

        Used as the LiveKit identity so a rejoin replaces the listener''s

        previous participant instead of stacking a duplicate.

        db: Shared database session.


        Returns:

        LiveKit credentials: url, token, room name.


        Raises:

        HTTPException: 404 if token invalid/revoked/expired.

        HTTPException: 409 if no active call.'
      operationId: public_join_public_listen__token__join_post
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
          title: Token
      - name: pid
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Pid
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicJoinResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /public/listen/{token}/request-language:
    post:
      tags:
      - listen-public
      summary: Public Request Language
      description: 'Listener-driven language activation (Glossa-style "any language").


        Adds the requested language to the live call''s app-only translation

        list via the SAME runtime call the in-app MeetLanguageSwitcher uses

        (`set_translation_languages` — server-enforced MAX_APP_TARGET_LANGS

        cap, new utterances only, no backfill). Public abuse surface is

        bounded by: supported-code validation, the per-call cap, the armed

        no-op fast path, and a per-token cooldown.'
      operationId: public_request_language_public_listen__token__request_language_post
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
          title: Token
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RequestLanguageBody'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RequestLanguageResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /public/listen/{token}/transcript:
    get:
      tags:
      - listen-public
      summary: Public Transcript
      description: 'Fetch transcript for an active call with pagination.


        Args:

        token: Share token from URL.

        since_id: Pagination cursor (return turns with id > since_id).

        db: Shared database session.


        Returns:

        Paginated transcript: turns (id, speaker, original, translated) and last_id.


        Raises:

        HTTPException: 404 if token invalid/revoked/expired.'
      operationId: public_transcript_public_listen__token__transcript_get
      parameters:
      - name: token
        in: path
        required: true
        schema:
          type: string
          title: Token
      - name: since_id
        in: query
        required: false
        schema:
          type: integer
          default: 0
          title: Since Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicTranscriptResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    RequestLanguageBody:
      properties:
        lang:
          type: string
          title: Lang
      type: object
      required:
      - lang
      title: RequestLanguageBody
    RequestLanguageResponse:
      properties:
        available_langs:
          items:
            type: string
          type: array
          title: Available Langs
      type: object
      required:
      - available_langs
      title: RequestLanguageResponse
    TranscriptTurn:
      properties:
        id:
          type: integer
          title: Id
        speaker:
          anyOf:
          - type: string
          - type: 'null'
          title: Speaker
        original:
          anyOf:
          - type: string
          - type: 'null'
          title: Original
        translated:
          anyOf:
          - type: string
          - type: 'null'
          title: Translated
        translations:
          additionalProperties:
            type: string
          type: object
          title: Translations
          default: {}
        sent_at:
          anyOf:
          - type: string
          - type: 'null'
          title: Sent At
      type: object
      required:
      - id
      - speaker
      - original
      - translated
      title: TranscriptTurn
      description: A single turn in the transcript.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    PublicSessionResponse:
      properties:
        active:
          type: boolean
          title: Active
        title:
          type: string
          title: Title
        source_lang:
          anyOf:
          - type: string
          - type: 'null'
          title: Source Lang
        target_lang:
          anyOf:
          - type: string
          - type: 'null'
          title: Target Lang
        available_langs:
          items:
            type: string
          type: array
          title: Available Langs
          default: []
        call_tts_muted:
          type: boolean
          title: Call Tts Muted
          default: false
      type: object
      required:
      - active
      - title
      title: PublicSessionResponse
      description: Session metadata for public listeners.
    PublicJoinResponse:
      properties:
        url:
          type: string
          title: Url
        token:
          type: string
          title: Token
        room:
          type: string
          title: Room
      type: object
      required:
      - url
      - token
      - room
      title: PublicJoinResponse
      description: LiveKit credentials for public listeners.
    PublicTranscriptResponse:
      properties:
        turns:
          items:
            $ref: '#/components/schemas/TranscriptTurn'
          type: array
          title: Turns
        last_id:
          type: integer
          title: Last Id
      type: object
      required:
      - turns
      - last_id
      title: PublicTranscriptResponse
      description: Transcript with pagination.