swagger: '2.0'
info:
  description: This is the initial REST API for RIC subscription
  version: 0.0.4
  title: RIC subscription
  license:
    name: Apache 2.0
    url: 'http://www.apache.org/licenses/LICENSE-2.0.html'
host: hostname
basePath: /ric/v1
schemes:
  - http
paths:
  /config:
    get:
      summary: Returns the configuration of all xapps
      tags:
        - xapp
      operationId: getXappConfigList
      produces:
        - application/json
        - application/xml
      responses:
        '200':
          description: successful query of xApp config
          schema:
            $ref: '#/definitions/XappConfigList'
        '500':
          description: Internal error
  /subscriptions:
    get:
      summary: Returns list of subscriptions
      tags:
        - common
      operationId: getAllSubscriptions
      produces:
        - application/json
      responses:
        '200':
          description: successful query of subscriptions
          schema:
            $ref: '#/definitions/SubscriptionList'
        '500':
          description: Internal error
    post:
      tags:
        - common
      operationId: Subscribe
      summary: Subscribe a list of X2AP event triggers to receive messages sent by RAN
      consumes:
        - application/json
      produces:
        - application/json
      parameters:
        - name: SubscriptionParams
          in: body
          description: Subscription parameters
          schema:
            $ref: '#/definitions/SubscriptionParams'
      responses:
        '201':
          description: Subscription successfully created
          schema:
            $ref: '#/definitions/SubscriptionResponse'
        '400':
          description: Not Found
        '404':
          description: Invalid input
        '500':
          description: Internal error
        '503':
          description: Service Unavailable
  '/subscriptions/{subscriptionId}':
    delete:
      tags:
        - common
      summary: Unsubscribe X2AP events from Subscription Manager
      operationId: Unsubscribe
      consumes:
        - application/json
      produces:
        - application/json
      parameters:
        - name: subscriptionId
          in: path
          description: The subscriptionId received in the Subscription Response
          required: true
          type: string
      responses:
        '204':
          description: Operation done successfully
        '400':
          description: Invalid subscriptionId supplied
        '500':
          description: Internal error
definitions:
  ConfigMetadata:
    type: object
    required:
      - xappName
      - configType
    properties:
      xappName:
        type: string
        description: Name of the xApp
      configType:
        type: string
        description: The type of the content
        enum:
          - json
          - xml
          - other
  XAppConfig:
    type: object
    required:
      - metadata
      - config
    properties:
      metadata:
        $ref: '#/definitions/ConfigMetadata'
      config:
        type: object
        description: Configuration in JSON format
  XappConfigList:
    type: array
    items:
      $ref: '#/definitions/XAppConfig'
  ActionDefinition:
    type: array
    description: E2SM byte array. ActionDefinition is an OPTIONAL IE
    items:
      type: integer
  SubsequentAction:
    description: SubsequentAction is an OPTIONAL IE
    type: object
    required:
      - SubsequentActionType
      - TimeToWait
    properties:
      SubsequentActionType:
        type: string
        enum:
          - continue
          - wait
      TimeToWait:
        type: string
        enum:
          - zero
          - w1ms
          - w2ms
          - w5ms
          - w10ms
          - w20ms
          - w30ms
          - w40ms
          - w50ms
          - w100ms
          - w200ms
          - w500ms
          - w1s
          - w2s
          - w5s
          - w10s
          - w20s
          - w60s
  ActionToBeSetup:
    type: object
    required:
      - ActionID
      - ActionType
    properties:
      ActionID:
        type: integer
        minimum: 0
        maximum: 255
      ActionType:
        type: string
        enum:
          - insert
          - policy
          - report
      ActionDefinition:
        $ref: '#/definitions/ActionDefinition'
      SubsequentAction:
        $ref: '#/definitions/SubsequentAction'
  ActionsToBeSetup:
    type: array
    items:
      $ref: '#/definitions/ActionToBeSetup'
  EventTriggerDefinition:
    type: array
    description: E2SM byte array
    items:
      type: integer
  SubscriptionDetail:
    type: object
    required:
      - XappEventInstanceId
      - EventTriggers
      - ActionToBeSetupList
    properties:
      XappEventInstanceId:
        type: integer
        minimum: 0
        maximum: 65535
      EventTriggers:
        $ref: '#/definitions/EventTriggerDefinition'
      ActionToBeSetupList:
        $ref: '#/definitions/ActionsToBeSetup'
  SubscriptionDetailsList:
    type: array
    items:
      $ref: '#/definitions/SubscriptionDetail'
  SubscriptionParams:
    type: object
    required:
      - ClientEndpoint
      - Meid
      - RANFunctionID
      - SubscriptionDetails
    properties:
      SubscriptionId:
       type: string
       description: Optional subscription ID (Submgr allocates if not given)
      ClientEndpoint:
        type: object
        description: xApp service address and port
        properties:
          Host:
            description: >-
              xApp service address name like
              'service-ricxapp-xappname-http.ricxapp'
            type: string
          HTTPPort:
            description: xApp HTTP service address port
            type: integer
            minimum: 0
            maximum: 65535
          RMRPort:
            description: xApp RMR service address port
            type: integer
            minimum: 0
            maximum: 65535
      Meid:
        type: string
      RANFunctionID:
        type: integer
        minimum: 0
        maximum: 4095
      E2SubscriptionDirectives:
        description: Optional. If not set Submgr uses its default values
        type: object
        properties:
          E2TimeoutTimerValue:
            description: How long time response is waited from E2 node
            type: integer
            minimum: 1
            maximum: 10
          E2RetryCount:
            description: How many times E2 subscription request is retried
            type: integer
            minimum: 0
            maximum: 10
          RMRRoutingNeeded:
            description: Subscription needs RMR route from E2Term to xApp 
            type: boolean
      SubscriptionDetails:
        $ref: '#/definitions/SubscriptionDetailsList'
  SubscriptionResponse:
    type: object
    required:
      - SubscriptionId
      - SubscriptionInstances
    properties:
      SubscriptionId:
        type: string
      SubscriptionInstances:
        type: array
        items:
          $ref: '#/definitions/SubscriptionInstance'
  SubscriptionInstance:
    type: object
    required:
      - XappEventInstanceId
      - E2EventInstanceId
    properties:
      XappEventInstanceId:
        type: integer
        minimum: 0
        maximum: 65535
      E2EventInstanceId:
        type: integer
        minimum: 0
        maximum: 65535
      ErrorCause:
        description: Descriptive error cause. Empty string when no error.
        type: string
      ErrorSource:
        description: Source of error cause.
        type: string
        enum: [SUBMGR, RTMGR, DBAAS, ASN1, E2Node]
      TimeoutType:
        description: Type timeout. xApp should retry if timeout occurs.
        type: string
        enum: [E2-Timeout, RTMGR-Timeout, DBAAS-Timeout]
  SubscriptionData:
    type: object
    properties:
      SubscriptionId:
        type: integer
      Meid:
        type: string
      ClientEndpoint:
        type: array
        items:
          type: string
      SubscriptionInstances:
        type: array
        items:
          $ref: '#/definitions/SubscriptionInstance'
  SubscriptionList:
    type: array
    description: A list of subscriptions
    items:
      $ref: '#/definitions/SubscriptionData'