Blng Prompts API

openapi: 3.2.0
info:
  title: Journey Prompts API
  description: API to manage user journeys in shopping or design domains, including interactions like image uploads and prompt management.
  version: 2.0.0
servers:
- url: /v2
tags:
- name: Prompts
paths:
  /journeys/{journeyId}/prompts:
    get:
      summary: Retrieve paginated prompts for a specific journey, sorted from newest to oldest
      operationId: getPromptsForJourney
      tags:
      - Prompts
      parameters:
      - name: journeyId
        in: path
        required: true
        schema:
          type: string
          description: Unique identifier for the journey
      - name: pageSize
        in: query
        required: false
        schema:
          type: integer
          default: 10
          maximum: 100
        description: The number of prompts to return in a single page (default 10)
      - name: nextPageKey
        in: query
        required: false
        schema:
          type: string
        description: Token to retrieve the next set of prompts if paginating. Null if no more pages.
      - name: includeLegacyPrompts
        in: query
        required: false
        schema:
          type: boolean
          default: false
        description: Include legacy prompts in the response. They are sorted oldest to newest.
      - in: header
        name: If-None-Match
        description: 'If provided, the server returns `304 Not Modified` when the

          response body''s current `ETag` matches this value. Use the

          `ETag` returned from a prior GET response as the value here

          for cheap revalidation. For paginated responses, send the

          etag returned for page 1 (no `nextPageKey`) — newer prompts

          and status changes always reflow page 1, so a page-1 304 is

          a sound proxy for "the whole prompts list is unchanged".

          '
        required: false
        schema:
          type: string
          example: W/"a1b2c3d4e5f60718"
      responses:
        '200':
          description: A paginated list of prompts
          headers:
            ETag:
              description: 'Weak entity tag computed from a truncated SHA-256 hash

                of the serialized response body. Send this value back

                as `If-None-Match` on subsequent GETs for cheap

                revalidation. Different pagination cursors produce

                different etags.

                '
              schema:
                type: string
                example: W/"a1b2c3d4e5f60718"
            Cache-Control:
              description: 'Always `private, no-cache, must-revalidate`. Clients may

                cache the body but MUST revalidate with the origin via

                `If-None-Match` before reuse; per-user, so not cacheable

                by shared intermediaries.

                '
              schema:
                type: string
                example: private, no-cache, must-revalidate
          content:
            application/json:
              schema:
                type: object
                properties:
                  prompts:
                    type: array
                    items:
                      $ref: '#/components/schemas/Prompt'
                  legacyPrompts:
                    type: array
                    items:
                      $ref: '#/components/schemas/Prompt'
                  nextPageKey:
                    type: string
                    description: Token to retrieve the next page of prompts, or empty if no further pages
        '304':
          description: 'Returned when the request''s `If-None-Match` header matches

            the current ETag. Body is empty; clients should reuse their

            cached representation.

            '
          headers:
            ETag:
              description: Current ETag value, identical to the request's `If-None-Match`.
              schema:
                type: string
                example: W/"a1b2c3d4e5f60718"
            Cache-Control:
              description: Always `private, no-cache, must-revalidate`.
              schema:
                type: string
                example: private, no-cache, must-revalidate
        '400':
          description: Invalid request parameters
        '404':
          description: Journey or prompts not found
      security:
      - bearerAuth: []
      - cognitoUserAuth: []
  /journeys/{journeyId}/prompts/{promptId}:
    get:
      summary: Retrieve a single prompt by its unique identifier
      operationId: getPromptById
      tags:
      - Prompts
      parameters:
      - name: journeyId
        in: path
        required: true
        schema:
          type: string
          description: Unique identifier for the journey
      - name: promptId
        in: path
        required: true
        schema:
          type: string
        description: Unique identifier for the prompt
      - name: includeLegacyPrompts
        in: query
        required: false
        schema:
          type: boolean
          default: false
        description: If true, includes legacy prompt details from the journey in the response
      responses:
        '200':
          description: Details of the requested prompt
          content:
            application/json:
              schema:
                type: object
                properties:
                  prompt:
                    $ref: '#/components/schemas/Prompt'
        '400':
          description: Invalid request parameters
        '404':
          description: Prompt not found
      security:
      - bearerAuth: []
      - cognitoUserAuth: []
  /journeys/{journeyId}/prompts/{promptId}/cancel-processing:
    post:
      summary: Cancel design-v3 prompt processing before a plan exists
      description: 'Marks the prompt as pipeline-cancelled and completed so the user can submit a new prompt.

        Once `response.planId` exists, use `POST .../plans/{planId}/cancel` instead.'
      operationId: cancelPromptProcessingBeforePlan
      tags:
      - Prompts
      parameters:
      - name: journeyId
        in: path
        required: true
        schema:
          type: string
      - name: promptId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Updated prompt
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Prompt'
        '400':
          description: Invalid request (e.g. not design-v3)
        '404':
          description: Journey or prompt not found
        '409':
          description: Conflict — plan already exists or prompt already terminal
      security:
      - bearerAuth: []
      - cognitoUserAuth: []
  /journeys/{journeyId}/prompts/{promptId}/plans/{planId}/cancel:
    post:
      summary: Cancel a design plan for a prompt in a journey
      operationId: cancelDesignPlanForPromptInJourney
      tags:
      - Prompts
      parameters:
      - name: journeyId
        in: path
        required: true
        schema:
          type: string
      - name: promptId
        in: path
        required: true
        schema:
          type: string
      - name: planId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Design plans
          content:
            application/json:
              schema:
                type: object
                properties: null
        '422':
          description: Validation Error
      security:
      - bearerAuth: []
      - cognitoUserAuth: []
components:
  schemas:
    PromptResponse:
      type: object
      properties:
        timestamp:
          type: string
          format: date-time
          description: Timestamp when the response was generated.
        type:
          type: string
          description: The type of prompt (e.g., design, design-v2 etc.).
    Prompt:
      type: object
      properties:
        id:
          type: string
          description: Unique identifier for the prompt.
        journeyId:
          type: string
          description: Identifier of the journey this prompt is associated with.
        userId:
          type: string
          description: Unique identifier for the user who created the prompt.
        createdAt:
          type: string
          format: date-time
          description: Timestamp of when the prompt was created.
        updatedAt:
          type: string
          format: date-time
          description: Timestamp of the last update to the prompt.
        request:
          $ref: '#/components/schemas/PromptRequest'
        response:
          $ref: '#/components/schemas/PromptResponse'
        scrambled:
          type: boolean
          description: Indicates if the prompt is scrambled because of entitlements.
        activeAt:
          type: number
          description: Unix timestamp in seconds for when the prompt is active (used for concurrency limits).
        expiresAt:
          type: number
          description: Unix timestamp in seconds for when the prompt will expire.
        processingState:
          type: string
          enum:
          - active
          - cancelled
          description: Pipeline control for design-v3 before a plan id exists; omitted on legacy prompts
      required:
      - id
      - journeyId
      - request
    PromptRequest:
      type: object
      properties:
        id:
          type: string
          description: Unique identifier for the prompt request. The server will create this if not provided.
        type:
          type: string
          description: The type of prompt (e.g., design, design-v2 etc.).
        timestamp:
          type: string
          format: date-time
          description: Timestamp when the prompt was generated.
        userAgent:
          type: string
          description: User agent string of the client that generated the prompt.
      required:
      - type
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: "Use your Cognito \"access_token\" or \"id_token\" obtained from AWS Cognito Hosted UI \nor CLI. Click \"Authorize\" and paste the token.\n"
    cognitoUserAuth:
      type: oauth2
      description: Cognito authorization code flow for users
      flows:
        implicit:
          authorizationUrl: https://auth.app.blng.ai/oauth2/authorize
          scopes:
            email: email
            profile: profile
            openid: openid
            aws.cognito.signin.user.admin: aws.cognito.signin.user.admin