openapi: 3.0.0

info:
  version: 1.3.0
  title: VAE_ApplicationRequirement
  description: |
    API for VAE Application Requirement Service  
    © 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).  
    All rights reserved.

externalDocs:
  description: 3GPP TS 29.486 V19.4.0 V2X Application Enabler (VAE) Services
  url: 'https://www.3gpp.org/ftp/Specs/archive/29_series/29.486/'

security:
  - {}
  - oAuth2ClientCredentials: []

servers:
  - url: '{apiRoot}/vae-app-req/v1'
    variables:
      apiRoot:
        default: https://example.com
        description: apiRoot as defined in clause 4.4 of 3GPP TS 29.501

paths:
  /application-requirements:
    post:
      summary: VAE_Application_Requirements resource create service Operation
      tags:
        - application requirements collection (Document)
      operationId: CreateApplicationRequirement
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ApplicationRequirementData'
        required: true
      responses:
        '201':
          description: Application Requirement Resource Created
          headers:
            Location:
              description: 'Contains the URI of the newly created resource'
              required: true
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApplicationRequirementData'
        '400':
          $ref: 'TS29571_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29571_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29571_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29571_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29571_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29571_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29571_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29571_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29571_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29571_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29571_CommonData.yaml#/components/responses/default'
      callbacks:
        NotifyNetworkResource:
          '{$request.body#/notifUri}': 
            post:
              requestBody:
                required: true
                content:
                  application/json:
                    schema:
                      $ref: '#/components/schemas/AppReqNotification'
              responses:
                '204':
                  description: No Content, Notification was succesfull
                '307':
                  $ref: 'TS29122_CommonData.yaml#/components/responses/307'
                '308':
                  $ref: 'TS29122_CommonData.yaml#/components/responses/308'
                '400':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/400'
                '401':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/401'
                '403':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/403'
                '404':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/404'
                '411':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/411'
                '413':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/413'
                '415':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/415'
                '429':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/429'
                '500':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/500'
                '503':
                  $ref: 'TS29571_CommonData.yaml#/components/responses/503'
                default:
                  $ref: 'TS29571_CommonData.yaml#/components/responses/default'
  /application-requirements/{requirementId}:
    get:
      summary: VAE Application Requirement resource read service Operation
      tags:
        - Individual application requirement (Document)
      operationId: ReadApplicationRequirement
      parameters:
        - name: requirementId
          in: path
          description: Identifier of an application requirement resource
          required: true
          schema:
            type: string
      responses:
        '200':
          description: OK. Resource representation is returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApplicationRequirementData'
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29571_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29571_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29571_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29571_CommonData.yaml#/components/responses/404'
        '406':
          $ref: 'TS29571_CommonData.yaml#/components/responses/406'
        '429':
          $ref: 'TS29571_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29571_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29571_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29571_CommonData.yaml#/components/responses/default'
    delete:
      summary: VAE Application Requirement resource delete service Operation
      tags:
        - Individual application requirement (Document)
      operationId: DeleteApplicationRequirement
      parameters:
        - name: requirementId
          in: path
          required: true
          description: Unique ID of the application requirement to be deleted
          schema:
            type: string
      responses:
        '204':
          description: The subscription was terminated successfully.
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29571_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29571_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29571_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29571_CommonData.yaml#/components/responses/404'
        '429':
          $ref: 'TS29571_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29571_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29571_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29571_CommonData.yaml#/components/responses/default'

components:
  securitySchemes:
    oAuth2ClientCredentials:
      type: oauth2
      flows: 
        clientCredentials: 
          tokenUrl: '{tokenUrl}'
          scopes: {}

  schemas:
    ApplicationRequirementData:
      description: >
        Represents an individual Application Requirement resource for a V2X UE ID or a V2X group ID.
      type: object
      properties:
        ueId:
          $ref: 'TS29486_VAE_MessageDelivery.yaml#/components/schemas/V2xUeId'
        groupId:
          $ref: 'TS29486_VAE_MessageDelivery.yaml#/components/schemas/V2xGroupId'
        duration:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/DateTime'
        serviceId:
          $ref: 'TS29486_VAE_MessageDelivery.yaml#/components/schemas/V2xServiceId'
        appRequirement:
          $ref: '#/components/schemas/ApplicationRequirement'
        notifUri:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uri'
        requestTestNotification:
          type: boolean
          description: >
            Set to true by the service consumer to request the VAE server to send a test
            notification as defined in clause 6.3.5.3. Set to false or omitted otherwise.
        websockNotifConfig:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/WebsockNotifConfig'
        suppFeat:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/SupportedFeatures'
      required:
        - serviceId
        - appRequirement
        - notifUri

    ApplicationRequirement:
      description: Represents the requirements for application change.
      type: object
      properties:
        serviceLevel:
          $ref: '#/components/schemas/ServiceLevel'

    AppReqNotification:
      description: >
        Represents a notificaton of the result of the network resource adaptation corresponding to
        the V2X application requirement.
      type: object
      properties:
        resourceUri:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uri'
        result:
          $ref: '#/components/schemas/ReservationResult'
      required:
        - resourceUri
        - result

# Simple data types and Enumerations
    ServiceLevel:
      description: Indicates a service level for application service.
      anyOf:
      - type: string
        enum:
          - HIGH
          - MEDIUM
          - LOW
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration and is not used to encode
          content defined in the present version of this API.

    ReservationResult:
      description: >
        Represents the result of the network resource adaptation corresponding to the V2X 
        application requirement.
      anyOf:
      - type: string
        enum:
          - SUCCESSFUL
          - FAILURE
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration and is not used to encode
          content defined in the present version of this API.
 