GSMA Open Gateway Check Device Swap API

openapi: 3.2.0
info:
  title: Check Device Swap API
  description: "This API allows to check the last time that the phone (device) - phone number association has changed\n\n# Introduction\n\n  The Device Swap API performs real-time checks on the last Device Swap event, providing real-time information about whether the SIM card associated with a user's phone number has been transferred to a different physical device.\n\n  Device Swap information can be invaluable for enhancing security, fraud detection, and ensuring compliance with regulatory requirements in various applications, apart from providing useful information of device upgrade trends in user segments.\n\n  This API is used by an application to get information about a mobile line's latest Device Swap date. It can be easily integrated and used through this secured API and allows API consumers to get this information in an easy and secured way. The API provides management of 2 endpoints answering 2 distinct questions:\n\n  * When did the last Device Swap occur?\n  * Has a Device Swap occurred during the last n hours?\n\n# Relevant terms and definitions\n\n**Device Swap:** A Device Swap is a process in which the association between a user's mobile phone number (MSISDN) and a device (IMEI) is created for the first time or changes for any reasons.\n\n# API Functionality\n\nThe Device Swap API provides a programmable interface for developers and other users (capabilities consumers) to request the last date of a device swap performed on the mobile line, or, to check whether a device swap has been performed during a past period.\n\nThe API provides 2 operations:\n\n- POST retrieve-date: Provides timestamp of latest device swap, if any, for a given phone number.\n    - If no swap has been performed and the network operator supports unlimited DeviceSwap monitoring timeframe, the API will return the first phone number usage in a device (the timestamp of the first time that the phone number was connected to the network, it is, the first time that the SIM is installed in a device).\n    - If the latest device swap date (or the first phone number usage, if no device swap) cannot be communicated due to local regulations (or Network Operator internal privacy policies) preventing the safekeeping of the information for longer than the stated period, a `null` value will be returned. Optionally, a `monitoredPeriod` could be provided to indicate monitored time frame (in days) supported by the Network Operator. In this case the response must be treated as \"there were no device swap events during 'monitoredPeriod'. Either the parameter is optional, it is recommended to support it in DeviceSwap implementations.\n- POST check: Checks if device swap has been performed during a past period (defined in the request with 'maxAge' attribute) for a given phone number, the API will return boolean response (true/false), indicating that the device has been swapped or not in the specified period. In case the phone number has never been installed in a device, or no data is available in the operators records (e.g. database error), API will return a 422 error.\n\n# Identifying the phone number from the access token\n\nThis API requires the API consumer to identify a phone number as the subject of the API. There is 2 ways to retrieve it depending on the authorization flow used:\n- When the API is invoked using a two-legged access token, the phone number will be identified from the optional `phoneNumber` identifier, which therefore MUST be provided.\n- When a three-legged access token is used however, this optional `phoneNumber` identifier MUST NOT be provided, as the phone number will be uniquely identified from the access token.\n\nThis approach simplifies API usage for API consumers using a three-legged access token to invoke the API by relying on the information that is associated with the access token and was identified during the authentication process.\n\n## Error handling:\n\n- If the phoneNumber cannot be identified from the access token and the optional `phoneNumber` identifier is not included in the request, then the server will return an error with the `422 MISSING_IDENTIFIER` error code.\n\n- If the phoneNumber can be identified from the access token and the optional `phoneNumber` identifier is also included in the request, then the server will return an error with the `422 UNNECESSARY_IDENTIFIER` error code. This will be the case even if the same device is identified by these two methods, as the server is unable to make this comparison.\n\n# Authorization and authentication\n\nThe \"Camara Security and Interoperability Profile\" provides details of how an API consumer requests an access token. Please refer to Identity and Consent Management (https://github.com/camaraproject/IdentityAndConsentManagement/) for the released version of the profile.\n\nThe specific authorization flows to be used will be agreed upon during the onboarding process, happening between the API consumer and the API provider, taking into account the declared purpose for accessing the API, whilst also being subject to the prevailing legal framework dictated by local legislation.\n\nIn cases where personal data is processed by the API and users can exercise their rights through mechanisms such as opt-in and/or opt-out, the use of three-legged access tokens is mandatory. This ensures that the API remains in compliance with privacy regulations, upholding the principles of transparency and user-centric privacy-by-design.\n\n# Additional CAMARA error responses\n\nThe list of error codes in this API specification is not exhaustive. Therefore the API specification may not document some non-mandatory error statuses as indicated in `CAMARA API Design Guide`.\n\nPlease refer to the `CAMARA_common.yaml` of the Commonalities Release associated to this API version for a complete list of error responses. The applicable Commonalities Release can be identified in the `API Readiness Checklist` document associated to this API version.\n\nAs a specific rule, error `501 - NOT_IMPLEMENTED` can be only a possible error response if it is explicitly documented in the API.\n"
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
  version: 1.0.0
  x-camara-commonalities: 0.6
servers:
- url: '{apiRoot}/device-swap/v1'
  variables:
    apiRoot:
      default: http://localhost:9091
      description: API root, defined by the service provider, e.g. `api.example.com` or `api.example.com/somepath`
tags:
- name: Check Device Swap
  description: Validate if the SIM of the end-user has been installed in a different device during a past period
paths:
  /check:
    post:
      tags:
      - Check Device Swap
      summary: Check last device swap date
      description: Check if device swap has been performed during a past period
      operationId: checkDeviceSwap
      security:
      - openId:
        - device-swap
      - openId:
        - device-swap:check
      parameters:
      - $ref: '#/components/parameters/x-correlator'
      requestBody:
        required: true
        description: 'Create a check device swap request for a phone number.

          '
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateCheckDeviceSwap'
            examples:
              CHECK_3LEGS:
                $ref: '#/components/examples/CHECK_3LEGS'
              CHECK_2LEGS:
                $ref: '#/components/examples/CHECK_2LEGS'
      responses:
        '200':
          description: Returns whether a device swap has been performed during a past period
          headers:
            x-correlator:
              $ref: '#/components/headers/x-correlator'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckDeviceSwapInfo'
        '400':
          $ref: '#/components/responses/Generic400Check'
        '401':
          $ref: '#/components/responses/Generic401'
        '403':
          $ref: '#/components/responses/Generic403'
        '404':
          $ref: '#/components/responses/Generic404'
        '422':
          $ref: '#/components/responses/Generic422'
components:
  examples:
    CHECK_2LEGS:
      summary: Check request without 3-legged access tokens
      value:
        phoneNumber: '+346661113334'
        maxAge: 120
    CHECK_3LEGS:
      summary: Check request with 3-legged access tokens
      value:
        maxAge: 120
  responses:
    Generic401:
      description: Unauthorized
      headers:
        x-correlator:
          $ref: '#/components/headers/x-correlator'
      content:
        application/json:
          schema:
            allOf:
            - $ref: '#/components/schemas/ErrorInfo'
            - type: object
              properties:
                status:
                  enum:
                  - 401
                code:
                  enum:
                  - UNAUTHENTICATED
          examples:
            GENERIC_401_UNAUTHENTICATED:
              description: Request cannot be authenticated
              value:
                status: 401
                code: UNAUTHENTICATED
                message: Request not authenticated due to missing, invalid, or expired credentials.
    Generic400Check:
      description: 'Bad Request

        In addition to regular scenario of INVALID_ARGUMENT, other scenarios may exist:

        - Out of Range. Specific Syntax Exception used when a given field has a pre-defined range or a invalid filter criteria combination is requested ("code": "OUT_OF_RANGE","message": "Client specified an invalid range.")'
      headers:
        x-correlator:
          $ref: '#/components/headers/x-correlator'
      content:
        application/json:
          schema:
            allOf:
            - $ref: '#/components/schemas/ErrorInfo'
            - type: object
              properties:
                status:
                  enum:
                  - 400
                code:
                  enum:
                  - INVALID_ARGUMENT
                  - OUT_OF_RANGE
          examples:
            GENERIC_400_INVALID_ARGUMENT:
              description: Invalid Argument. Generic Syntax Exception
              value:
                status: 400
                code: INVALID_ARGUMENT
                message: Client specified an invalid argument, request body or query param.
            GENERIC_400_OUT_OF_RANGE:
              description: Out of Range. Specific Syntax Exception used when a given field has a pre-defined range or a invalid filter criteria combination is requested
              value:
                status: 400
                code: OUT_OF_RANGE
                message: Client specified an invalid range.
    Generic403:
      description: Forbidden
      headers:
        x-correlator:
          $ref: '#/components/headers/x-correlator'
      content:
        application/json:
          schema:
            allOf:
            - $ref: '#/components/schemas/ErrorInfo'
            - type: object
              properties:
                status:
                  enum:
                  - 403
                code:
                  enum:
                  - PERMISSION_DENIED
          examples:
            GENERIC_403_PERMISSION_DENIED:
              description: Permission denied. OAuth2 token access does not have the required scope or when the user fails operational security
              value:
                status: 403
                code: PERMISSION_DENIED
                message: Client does not have sufficient permissions to perform this action.
    Generic404:
      description: Not found
      headers:
        x-correlator:
          $ref: '#/components/headers/x-correlator'
      content:
        application/json:
          schema:
            allOf:
            - $ref: '#/components/schemas/ErrorInfo'
            - type: object
              properties:
                status:
                  enum:
                  - 404
                code:
                  enum:
                  - NOT_FOUND
                  - IDENTIFIER_NOT_FOUND
          examples:
            GENERIC_404_NOT_FOUND:
              description: Resource is not found
              value:
                status: 404
                code: NOT_FOUND
                message: The specified resource is not found.
            GENERIC_404_IDENTIFIER_NOT_FOUND:
              description: Some identifier cannot be matched to a device
              value:
                status: 404
                code: IDENTIFIER_NOT_FOUND
                message: Device identifier not found.
    Generic422:
      description: Unprocessable Content
      headers:
        x-correlator:
          $ref: '#/components/headers/x-correlator'
      content:
        application/json:
          schema:
            allOf:
            - $ref: '#/components/schemas/ErrorInfo'
            - type: object
              properties:
                status:
                  enum:
                  - 422
                code:
                  enum:
                  - SERVICE_NOT_APPLICABLE
                  - MISSING_IDENTIFIER
                  - UNNECESSARY_IDENTIFIER
          examples:
            GENERIC_422_SERVICE_NOT_APPLICABLE:
              description: Service not applicable for the provided identifier
              value:
                status: 422
                code: SERVICE_NOT_APPLICABLE
                message: The service is not available for the provided identifier.
            GENERIC_422_MISSING_IDENTIFIER:
              description: phone number is not included in the request (in case of 2-legged) or the phone number identification cannot be derived from access token (in 3-legged)
              value:
                status: 422
                code: MISSING_IDENTIFIER
                message: The device cannot be identified.
            GENERIC_422_UNNECESSARY_IDENTIFIER:
              description: An explicit identifier is provided when a device or phone number has already been identified from the access token
              value:
                status: 422
                code: UNNECESSARY_IDENTIFIER
                message: The device is already identified by the access token.
  schemas:
    PhoneNumber:
      type: string
      pattern: ^\+[1-9][0-9]{4,14}$
      example: '+34666111333'
      description: A public identifier addressing a telephone subscription. In mobile networks it corresponds to the MSISDN (Mobile Station International Subscriber Directory Number). In order to be globally unique it has to be formatted in international format, according to E.164 standard, prefixed with '+'.
    CreateCheckDeviceSwap:
      type: object
      properties:
        phoneNumber:
          $ref: '#/components/schemas/PhoneNumber'
        maxAge:
          type: integer
          example: 240
          description: 'Period in hours to be checked for device swap.

            '
          format: int32
          minimum: 1
          maximum: 2400
          default: 240
    XCorrelator:
      type: string
      pattern: ^[a-zA-Z0-9-_:;.\/<>{}]{0,256}$
      example: b4333c46-49c0-4f62-80d7-f0ef930f1c46
    CheckDeviceSwapInfo:
      type: object
      required:
      - swapped
      properties:
        swapped:
          type: boolean
          description: Indicates whether the device has been swapped during the period within the provided age.
    ErrorInfo:
      type: object
      required:
      - status
      - code
      - message
      properties:
        message:
          type: string
          description: A human-readable description of what the event represents
        status:
          type: integer
          description: HTTP response status code
        code:
          type: string
          description: A human-readable code to describe the error
  parameters:
    x-correlator:
      name: x-correlator
      in: header
      description: Correlation id for the different services
      schema:
        $ref: '#/components/schemas/XCorrelator'
  headers:
    x-correlator:
      description: Correlation id for the different services
      schema:
        $ref: '#/components/schemas/XCorrelator'
  securitySchemes:
    openId:
      type: openIdConnect
      openIdConnectUrl: https://example.com/.well-known/openid-configuration
externalDocs:
  description: Product documentation at CAMARA
  url: https://github.com/camaraproject/DeviceSwap