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OpenAPI Specification

openapi: 3.2.0
info:
  title: Event Subscription API Specification - ASPSP Endpoints Event Subscriptions API
  description: OpenAPI for Event Subscription API Specification - ASPSP Endpoints
  termsOfService: https://www.openbanking.org.uk/terms
  contact:
    name: Service Desk
    email: ServiceDesk@openbanking.org.uk
  license:
    name: open-licence
    url: https://www.openbanking.org.uk/open-licence
  version: v3.1.2
servers:
- url: https://ob-ybs.api.ybs.co.uk/open-banking/v3.1/aisp
  description: Base URL declared by the provider in apis.yml (roadmap#122).
tags:
- name: Event Subscriptions
paths:
  /event-subscriptions:
    post:
      tags:
      - Event Subscriptions
      summary: Create Event Subscription
      operationId: CreateEventSubscriptions
      parameters:
      - $ref: '#/components/parameters/x-fapi-auth-date'
      - $ref: '#/components/parameters/x-fapi-customer-ip-address'
      - $ref: '#/components/parameters/x-fapi-interaction-id'
      - $ref: '#/components/parameters/Authorization'
      - $ref: '#/components/parameters/x-jws-signature'
      responses:
        '201':
          $ref: '#/components/responses/201EventSubscriptionsCreated'
        '400':
          $ref: '#/components/responses/400Error'
        '401':
          $ref: '#/components/responses/401Error'
        '403':
          $ref: '#/components/responses/403Error'
        '404':
          $ref: '#/components/responses/404Error'
        '405':
          $ref: '#/components/responses/405Error'
        '406':
          $ref: '#/components/responses/406Error'
        '429':
          $ref: '#/components/responses/429Error'
        '500':
          $ref: '#/components/responses/500Error'
      security:
      - TPPOAuth2Security:
        - accounts
        - payments
        - fundsconfirmations
      requestBody:
        $ref: '#/components/requestBodies/OBEventSubscription1Param'
    get:
      tags:
      - Event Subscriptions
      summary: Get Event Subscription
      operationId: GetEventSubscriptions
      parameters:
      - $ref: '#/components/parameters/x-fapi-auth-date'
      - $ref: '#/components/parameters/x-fapi-customer-ip-address'
      - $ref: '#/components/parameters/x-fapi-interaction-id'
      - $ref: '#/components/parameters/Authorization'
      responses:
        '200':
          $ref: '#/components/responses/200EventSubscriptionsRead'
        '400':
          $ref: '#/components/responses/400Error'
        '401':
          $ref: '#/components/responses/401Error'
        '403':
          $ref: '#/components/responses/403Error'
        '404':
          $ref: '#/components/responses/404Error'
        '405':
          $ref: '#/components/responses/405Error'
        '406':
          $ref: '#/components/responses/406Error'
        '429':
          $ref: '#/components/responses/429Error'
        '500':
          $ref: '#/components/responses/500Error'
      security:
      - TPPOAuth2Security:
        - accounts
        - payments
        - fundsconfirmations
  /event-subscriptions/{EventSubscriptionId}:
    put:
      tags:
      - Event Subscriptions
      summary: Change Event Subscription
      operationId: ChangeEventSubscriptionsEventSubscriptionId
      parameters:
      - $ref: '#/components/parameters/EventSubscriptionId'
      - $ref: '#/components/parameters/x-fapi-auth-date'
      - $ref: '#/components/parameters/x-fapi-customer-ip-address'
      - $ref: '#/components/parameters/x-fapi-interaction-id'
      - $ref: '#/components/parameters/Authorization'
      - $ref: '#/components/parameters/x-jws-signature'
      responses:
        '200':
          $ref: '#/components/responses/200EventSubscriptionsEventSubscriptionIdChanged'
        '400':
          $ref: '#/components/responses/400Error'
        '401':
          $ref: '#/components/responses/401Error'
        '403':
          $ref: '#/components/responses/403Error'
        '404':
          $ref: '#/components/responses/404Error'
        '405':
          $ref: '#/components/responses/405Error'
        '406':
          $ref: '#/components/responses/406Error'
        '429':
          $ref: '#/components/responses/429Error'
        '500':
          $ref: '#/components/responses/500Error'
      security:
      - TPPOAuth2Security:
        - accounts
        - payments
        - fundsconfirmations
      requestBody:
        $ref: '#/components/requestBodies/OBEventSubscriptionResponse1Param'
    delete:
      tags:
      - Event Subscriptions
      summary: Delete Event Subscription
      operationId: DeleteEventSubscriptionsEventSubscriptionId
      parameters:
      - $ref: '#/components/parameters/EventSubscriptionId'
      - $ref: '#/components/parameters/x-fapi-auth-date'
      - $ref: '#/components/parameters/x-fapi-customer-ip-address'
      - $ref: '#/components/parameters/x-fapi-interaction-id'
      - $ref: '#/components/parameters/Authorization'
      responses:
        '204':
          $ref: '#/components/responses/204EventSubscriptionsEventSubscriptionIdDeleted'
        '400':
          $ref: '#/components/responses/400Error'
        '401':
          $ref: '#/components/responses/401Error'
        '403':
          $ref: '#/components/responses/403Error'
        '404':
          $ref: '#/components/responses/404Error'
        '405':
          $ref: '#/components/responses/405Error'
        '406':
          $ref: '#/components/responses/406Error'
        '429':
          $ref: '#/components/responses/429Error'
        '500':
          $ref: '#/components/responses/500Error'
      security:
      - TPPOAuth2Security:
        - accounts
        - payments
        - fundsconfirmations
components:
  responses:
    201EventSubscriptionsCreated:
      description: Event Subscription Created
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
        x-jws-signature:
          description: 'Header containing a detached JWS signature of the body of the payload.

            '
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBEventSubscriptionResponse1'
    500Error:
      description: Internal Server Error
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBErrorResponse1'
    429Error:
      description: Too Many Requests
      headers:
        Retry-After:
          description: Number in seconds to wait
          schema:
            type: integer
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
    406Error:
      description: Not Acceptable
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
    401Error:
      description: Unauthorized
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
    204EventSubscriptionsEventSubscriptionIdDeleted:
      description: Event Subscription Deleted
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
    404Error:
      description: Not found
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
    400Error:
      description: Bad request
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBErrorResponse1'
    200EventSubscriptionsEventSubscriptionIdChanged:
      description: Event Subscription Changed
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
        x-jws-signature:
          description: 'Header containing a detached JWS signature of the body of the payload.

            '
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBEventSubscriptionResponse1'
    403Error:
      description: Forbidden
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBErrorResponse1'
    200EventSubscriptionsRead:
      description: Event Subscription Read
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
        x-jws-signature:
          description: 'Header containing a detached JWS signature of the body of the payload.

            '
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBEventSubscriptionsResponse1'
    405Error:
      description: Method Not Allowed
      headers:
        x-fapi-interaction-id:
          description: An RFC4122 UID used as a correlation id.
          schema:
            type: string
  schemas:
    Meta:
      title: MetaData
      type: object
      description: Meta Data relevant to the payload
      properties:
        TotalPages:
          type: integer
          format: int32
        FirstAvailableDateTime:
          $ref: '#/components/schemas/ISODateTime'
        LastAvailableDateTime:
          $ref: '#/components/schemas/ISODateTime'
      additionalProperties: false
    OBEventSubscriptionResponse1:
      type: object
      required:
      - Data
      properties:
        Data:
          type: object
          required:
          - EventSubscriptionId
          - Version
          properties:
            EventSubscriptionId:
              description: Unique identification as assigned by the ASPSP to uniquely identify the callback URL resource.
              type: string
              minLength: 1
              maxLength: 40
            CallbackUrl:
              description: Callback URL for a TPP hosted service. Will be used by ASPSPs, in conjunction with the resource name, to construct a URL to send event notifications to.
              type: string
              format: uri
            Version:
              $ref: '#/components/schemas/Version'
            EventTypes:
              type: array
              items:
                description: Array of event types the subscription applies to.
                type: string
        Links:
          $ref: '#/components/schemas/Links'
        Meta:
          $ref: '#/components/schemas/Meta'
    ISODateTime:
      description: "All dates in the JSON payloads are represented in ISO 8601 date-time format. \nAll date-time fields in responses must include the timezone. An example is below:\n2017-04-05T10:43:07+00:00"
      type: string
      format: date-time
    Links:
      type: object
      description: Links relevant to the payload
      properties:
        Self:
          type: string
          format: uri
        First:
          type: string
          format: uri
        Prev:
          type: string
          format: uri
        Next:
          type: string
          format: uri
        Last:
          type: string
          format: uri
      additionalProperties: false
      required:
      - Self
    OBErrorResponse1:
      description: An array of detail error codes, and messages, and URLs to documentation to help remediation.
      type: object
      properties:
        Code:
          description: High level textual error code, to help categorize the errors.
          type: string
          minLength: 1
          maxLength: 40
        Id:
          description: A unique reference for the error instance, for audit purposes, in case of unknown/unclassified errors.
          type: string
          minLength: 1
          maxLength: 40
        Message:
          description: Brief Error message, e.g., 'There is something wrong with the request parameters provided'
          type: string
          minLength: 1
          maxLength: 500
        Errors:
          items:
            $ref: '#/components/schemas/OBError1'
          type: array
          minItems: 1
      required:
      - Code
      - Message
      - Errors
      additionalProperties: false
    Version:
      description: Version for the event notification.
      type: string
      minLength: 1
      maxLength: 10
    OBEventSubscription1:
      type: object
      required:
      - Data
      properties:
        Data:
          type: object
          required:
          - Version
          properties:
            CallbackUrl:
              description: Callback URL for a TPP hosted service. Will be used by ASPSPs, in conjunction with the resource name, to construct a URL to send event notifications to.
              type: string
              format: uri
            Version:
              $ref: '#/components/schemas/Version'
            EventTypes:
              type: array
              items:
                description: Array of event types the subscription applies to.
                type: string
    OBEventSubscriptionsResponse1:
      type: object
      required:
      - Data
      properties:
        Data:
          type: object
          properties:
            EventSubscription:
              type: array
              items:
                type: object
                required:
                - EventSubscriptionId
                - Version
                properties:
                  EventSubscriptionId:
                    description: Unique identification as assigned by the ASPSP to uniquely identify the callback url resource.
                    type: string
                    minLength: 1
                    maxLength: 40
                  CallbackUrl:
                    description: Callback URL for a TPP hosted service. Will be used by ASPSPs, in conjunction with the resource name, to construct a URL to send event notifications to.
                    type: string
                    format: uri
                  Version:
                    $ref: '#/components/schemas/Version'
                  EventTypes:
                    type: array
                    items:
                      description: Array of event types the subscription applies to.
                      type: string
        Links:
          $ref: '#/components/schemas/Links'
        Meta:
          $ref: '#/components/schemas/Meta'
    OBError1:
      type: object
      properties:
        ErrorCode:
          description: Low level textual error code, e.g., UK.OBIE.Field.Missing
          type: string
          x-namespaced-enum:
          - UK.OBIE.Field.Expected
          - UK.OBIE.Field.Invalid
          - UK.OBIE.Field.InvalidDate
          - UK.OBIE.Field.Missing
          - UK.OBIE.Field.Unexpected
          - UK.OBIE.Header.Invalid
          - UK.OBIE.Header.Missing
          - UK.OBIE.Reauthenticate
          - UK.OBIE.Resource.ConsentMismatch
          - UK.OBIE.Resource.InvalidConsentStatus
          - UK.OBIE.Resource.InvalidFormat
          - UK.OBIE.Resource.NotFound
          - UK.OBIE.Rules.AfterCutOffDateTime
          - UK.OBIE.Rules.DuplicateReference
          - UK.OBIE.Signature.Invalid
          - UK.OBIE.Signature.InvalidClaim
          - UK.OBIE.Signature.Malformed
          - UK.OBIE.Signature.Missing
          - UK.OBIE.Signature.MissingClaim
          - UK.OBIE.Signature.Unexpected
          - UK.OBIE.UnexpectedError
          - UK.OBIE.Unsupported.AccountIdentifier
          - UK.OBIE.Unsupported.AccountSecondaryIdentifier
          - UK.OBIE.Unsupported.Currency
          - UK.OBIE.Unsupported.Frequency
          - UK.OBIE.Unsupported.LocalInstrument
          - UK.OBIE.Unsupported.Scheme
        Message:
          description: 'A description of the error that occurred. e.g., ''A mandatory field isn''t supplied'' or ''RequestedExecutionDateTime must be in future''

            OBIE doesn''t standardise this field'
          type: string
          minLength: 1
          maxLength: 500
        Path:
          description: Recommended but optional reference to the JSON Path of the field with error, e.g., Data.Initiation.InstructedAmount.Currency
          type: string
          minLength: 1
          maxLength: 500
        Url:
          description: URL to help remediate the problem, or provide more information, or to API Reference, or help etc
          type: string
      required:
      - ErrorCode
      - Message
      additionalProperties: false
      minProperties: 1
  parameters:
    x-fapi-interaction-id:
      in: header
      name: x-fapi-interaction-id
      required: false
      description: An RFC4122 UID used as a correlation id.
      schema:
        type: string
    x-jws-signature:
      in: header
      name: x-jws-signature
      required: true
      description: A detached JWS signature of the body of the payload.
      schema:
        type: string
    x-fapi-auth-date:
      in: header
      name: x-fapi-auth-date
      required: false
      description: "The time when the PSU last logged in with the TPP. \nAll dates in the HTTP headers are represented as RFC 7231 Full Dates. An example is below: \nSun, 10 Sep 2017 19:43:31 UTC"
      schema:
        type: string
        pattern: ^(Mon|Tue|Wed|Thu|Fri|Sat|Sun), \d{2} (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d{4} \d{2}:\d{2}:\d{2} (GMT|UTC)$
    EventSubscriptionId:
      name: EventSubscriptionId
      in: path
      description: EventSubscriptionId
      required: true
      schema:
        type: string
    Authorization:
      in: header
      name: Authorization
      required: true
      description: An Authorisation Token as per https://tools.ietf.org/html/rfc6750
      schema:
        type: string
    x-fapi-customer-ip-address:
      in: header
      name: x-fapi-customer-ip-address
      required: false
      description: The PSU's IP address if the PSU is currently logged in with the TPP.
      schema:
        type: string
  requestBodies:
    OBEventSubscription1Param:
      description: Default
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBEventSubscription1'
      required: true
    OBEventSubscriptionResponse1Param:
      description: Default
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/OBEventSubscriptionResponse1'
      required: true
  securitySchemes:
    TPPOAuth2Security:
      type: oauth2
      description: TPP client credential authorisation flow with the ASPSP
      flows:
        clientCredentials:
          tokenUrl: https://authserver.example/token
          scopes:
            accounts: Ability to read Accounts information
            fundsconfirmations: Ability to confirm funds
            payments: Generic payment scope