oas.yaml

openapi: 3.0.3

info:
  title: TODO API
  description: API that allows you to manage a to-do list
  version: 1.0.0

paths:
  /todo/:
    get:
      summary: Returns a list of to-do items
      responses:
        '200':
          description: A JSON array of tasks
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/GetTaskSchema'

    post:
      summary: Creates an task
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateTaskSchema'
      responses:
        '201':
          description: A JSON representation of the created task
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetTaskSchema'

  /todo/{item_id}:
    parameters:
      - in: path
        name: item_id
        required: true
        schema:
          type: string
          format: uuid
        example: d222e7a3-6afb-463a-9709-38eb70cc670d
    get:
      summary: Returns the details of a task
      responses:
        '200':
          description: A JSON representation of a task
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetTaskSchema'
        '404':
          $ref: '#/components/responses/NotFound'

    put:
      summary: Updates an existing task
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateTaskSchema'
      responses:
        '200':
          description: A JSON representation of a task
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetTaskSchema'
        '404':
          $ref: '#/components/responses/NotFound'

    delete:
      summary: Deletes an existing task
      responses:
        '204':
          description: The resource was deleted successfully
        '404':
          $ref: '#/components/responses/NotFound'

components:
  responses:
    NotFound:
      description: The specified resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'

  schemas:
    Error:
      type: object
      properties:
        code:
          type: number
        message:
          type: string
        status:
          type: string

    CreateTaskSchema:
      type: object
      required:
        - task
      additionalProperties: false
      properties:
        priority:
          type: string
          enum:
            - low
            - medium
            - high
          default: low
        status:
          type: string
          enum:
            - pending
            - progress
            - completed
          default: pending
        task:
          type: string

    GetTaskSchema:
      type: object
      required:
        - created
        - id
        - priority
        - status
        - task
      additionalProperties: false
      properties:
        id:
          type: string
          format: uuid
        created:
          type: integer
          description: Date in the form of UNIX timestmap
        priority:
          type: string
          enum:
            - low
            - medium
            - high
          default: low
        status:
          type: string
          enum:
            - pending
            - progress
            - completed
        task:
          type: string