3GPP

3GPP TS 29.522 VFLNF Discovery API

VFLNF Discovery API. An OpenAPI 3.0.0 document with 2 path(s), API version 1.0.0, published verbatim by 3GPP in 3GPP TS 29.522 as part of the 5G NEF Northbound (Network Exposure) suite and mirrored in the public 3GPP Forge GitLab repository.

GitHub OpenAPI

Documentation

📖
Documentation
https://www.3gpp.org/ftp/Specs/archive/29_series/29.522/
📖
APIReference
https://forge.3gpp.org/rep/all/5G_APIs/-/raw/REL-20/TS29522_VFLNFDiscovery.yaml

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/3gpp/refs/heads/main/openapi/3gpp-ts29522-vflnfdiscovery.yml

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OpenAPI Specification

3gpp-ts29522-vflnfdiscovery.yml Raw ↑ 
openapi: 3.0.0

info:
  title: 3gpp-vfl-nf-discovery
  version: 1.0.0
  description: |
    API for VFL NF Discovery.  
    © 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).  
    All rights reserved.

externalDocs:
  description: >
    3GPP TS 29.522 V19.5.0; 5G System; Network Exposure Function Northbound APIs.
  url: 'https://www.3gpp.org/ftp/Specs/archive/29_series/29.522/'

servers:
  - url: '{apiRoot}/3gpp-vfl-nf-discovery/v1'
    variables:
      apiRoot:
        default: https://example.com
        description: apiRoot as defined in clause 5.2.4 of 3GPP TS 29.122

security:
  - {}
  - oAuth2ClientCredentials: []

paths:
  /discover-nwdaf:
    post:
      summary: Request of NWDAF(s) that are to act as VFL client(s).
      tags:
        - VFL NF discovery
      operationId: DiscoverNwdaf
      requestBody:
        description: Representation of the request of NWDAF that are to act as VFL client(s).
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/NwdafDiscoveryRequest'
      responses:
        '200':
          description: >
            OK. Successful case. The external NWDAF ID is provisioned.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NwdafDiscoveryResponse'
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29122_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29122_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29122_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'

  /release-nwdaf:
    post:
      summary: Request to inform the external NWDAF ID(s) are not used anymore.
      operationId: ReleaseNwdaf
      tags:
        - VFL NF discovery release
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/NwdafReleaseRequest'
      responses:
        '204':
          description: No Content. Successful case.
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29122_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29122_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29122_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'

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

  schemas: 
    NwdafDiscoveryRequest:
      description: >
        Represents the parameters to request the NWDAF(s) that are to act as VFL client(s).
      type: object
      properties:
        analyticIds:
          type: array
          items:
            $ref: 'TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent'
          minItems: 1
        vflCapType:
          $ref: '#/components/schemas/VFLCapabilityType'
        vflInterInfo:
          type: string
          description: String representing the VFL Interoperability Information.
        reqFeatureIds:
          type: array
          items:
            type: string
          minItems: 1
        timePeriod:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/TimeWindow'
        serviceAreas:
          type: array
          items:
            $ref: 'TS29572_Nlmf_Location.yaml#/components/schemas/GeographicArea'
          minItems: 1
      required:
        - analyticIds
        - vflCapType

    NwdafDiscoveryResponse:
      description: >
        Represents the external NWDAF ID(s) to act as the VFL client(s).
      type: object
      properties:
        exNwdafIds:
          type: array
          items:
            type: string
          description: The current external NWDAF identifier.
          minItems: 1
      required:
        - exNwdafIds

    NwdafReleaseRequest:
      description: >
        Represents the parameters to inform the external NWDAF ID(s) are not used anymore.
      type: object
      properties:
        exNwdafIds:
          type: array
          items:
            type: string
          description: The current external NWDAF identifier.
          minItems: 1
      required:
        - exNwdafIds

#
# SIMPLE DATA TYPES
#

#
# ENUMERATIONS
#

    VFLCapabilityType:
      anyOf:
      - type: string
        enum:
          - VFL_CLIENT
      - type: string
        description: Represents the VFL capability type to be discovered.
      description: |
        Represents the VFL capability type to be discovered.  
        Possible values are:
          - VFL_CLIENT: Represents the VFL capability type to be discovered is VFL client.