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OpenAPI Specification

openapi: 3.2.0
info:
  version: 0.1.0
  title: fnlowl Chat API
tags:
- name: Chat
paths:
  /chat:
    post:
      tags:
      - Chat
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ChatRequest'
      responses:
        '200':
          description: The assistant's reply
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChatReply'
        '400':
          description: The request was not valid
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '401':
          description: Not authenticated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '403':
          description: Not allowed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '404':
          description: No such thing
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '409':
          description: Conflicts with what is already there
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '422':
          description: Understood, but cannot be done
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
        '429':
          description: Too many requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Problem'
      summary: Create chat
      x-summary-source: derived
      operationId: postChat
      x-operation-id-source: derived
components:
  schemas:
    ChatRequest:
      type: object
      properties:
        messages:
          type: array
          items:
            type: object
            properties:
              role:
                type: string
                enum:
                - user
                - assistant
              content:
                type: string
                minLength: 1
                maxLength: 4000
            required:
            - role
            - content
          minItems: 1
          maxItems: 20
      required:
      - messages
    ChatReply:
      type: object
      properties:
        text:
          type: string
      required:
      - text
    Problem:
      type: object
      properties:
        code:
          type: string
          example: not_found
        detail:
          type: string
          example: no such widget
        status:
          type: integer
          example: 404
        meta:
          type: object
          additionalProperties:
            anyOf:
            - type: string
            - type: number
            - nullable: true
            - nullable: true
      required:
      - code
      - detail
      - status