openapi: 3.0.3
info:
  title: SAP BRIM (Billing and Revenue Innovation Management) SAP BRIM Convergent Charging Balances Usage Events API
  description: API for real-time charging and rating of usage-based services within the SAP BRIM (Billing and Revenue Innovation Management) suite. Supports complex pricing models, prepaid and postpaid scenarios, tiered and volume-based pricing, and real-time balance management.
  version: 1.0.0
  contact:
    name: SAP Support
    email: support@sap.com
    url: https://support.sap.com
  license:
    name: SAP Developer License
    url: https://www.sap.com/about/legal/terms-of-use.html
  termsOfService: https://www.sap.com/about/legal/terms-of-use.html
servers:
- url: https://api.sap.com/convergent-charging/v1
  description: SAP API Business Hub - Production
- url: https://sandbox.api.sap.com/convergent-charging/v1
  description: SAP API Business Hub - Sandbox
security:
- OAuth2:
  - read
  - write
- ApiKeyAuth: []
tags:
- name: Usage Events
  description: Submission and management of usage event records
paths:
  /usage-events:
    post:
      operationId: submitUsageEvent
      summary: SAP BRIM (Billing and Revenue Innovation Management) Submit a usage event
      description: Submits a usage event for rating and charging. The event is processed against the applicable pricing plan.
      tags:
      - Usage Events
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UsageEvent'
      responses:
        '202':
          description: Usage event accepted for processing
          content:
            application/json:
              schema:
                type: object
                properties:
                  eventId:
                    type: string
                    format: uuid
                  status:
                    type: string
                    enum:
                    - ACCEPTED
                    - QUEUED
                  receivedAt:
                    type: string
                    format: date-time
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /usage-events/{eventId}:
    get:
      operationId: getUsageEvent
      summary: SAP BRIM (Billing and Revenue Innovation Management) Get usage event status
      description: Retrieves the processing status and details of a previously submitted usage event.
      tags:
      - Usage Events
      parameters:
      - name: eventId
        in: path
        required: true
        schema:
          type: string
          format: uuid
      responses:
        '200':
          description: Usage event details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UsageEventDetail'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    UsageEvent:
      type: object
      required:
      - subscriberId
      - serviceType
      - quantity
      - usageTimestamp
      properties:
        externalId:
          type: string
          description: External identifier for deduplication
        subscriberId:
          type: string
        serviceType:
          type: string
        quantity:
          type: number
          format: double
        unit:
          type: string
        usageTimestamp:
          type: string
          format: date-time
        attributes:
          type: object
          additionalProperties:
            type: string
    RatingResponse:
      type: object
      properties:
        ratingId:
          type: string
          format: uuid
        subscriberId:
          type: string
        serviceType:
          type: string
        quantity:
          type: number
          format: double
        charge:
          $ref: '#/components/schemas/MonetaryAmount'
        pricingPlanId:
          type: string
        rateApplied:
          type: number
          format: double
          description: The unit rate applied
        tierApplied:
          type: string
          description: Name of the pricing tier that was applied
        ratedAt:
          type: string
          format: date-time
        status:
          type: string
          enum:
          - RATED
          - FAILED
          - ZERO_RATED
        details:
          type: array
          items:
            type: object
            properties:
              tierName:
                type: string
              unitsInTier:
                type: number
                format: double
              ratePerUnit:
                type: number
                format: double
              tierCharge:
                $ref: '#/components/schemas/MonetaryAmount'
    ErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            target:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  message:
                    type: string
    MonetaryAmount:
      type: object
      required:
      - value
      - currency
      properties:
        value:
          type: number
          format: double
          description: The monetary value
        currency:
          type: string
          pattern: ^[A-Z]{3}$
          description: ISO 4217 currency code
    UsageEventDetail:
      type: object
      properties:
        eventId:
          type: string
          format: uuid
        externalId:
          type: string
        subscriberId:
          type: string
        serviceType:
          type: string
        quantity:
          type: number
          format: double
        unit:
          type: string
        usageTimestamp:
          type: string
          format: date-time
        status:
          type: string
          enum:
          - ACCEPTED
          - QUEUED
          - RATED
          - CHARGED
          - FAILED
        ratingResult:
          $ref: '#/components/schemas/RatingResponse'
        receivedAt:
          type: string
          format: date-time
        processedAt:
          type: string
          format: date-time
  responses:
    Unauthorized:
      description: Authentication required or invalid credentials
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://auth.sap.com/oauth/token
          scopes:
            read: Read access to charging and rating resources
            write: Write access to charging and rating resources
    ApiKeyAuth:
      type: apiKey
      in: header
      name: APIKey