openapi: 3.1.0
info:
  title: Nomba Virtual Accounts API
  description: >-
    The Nomba Virtual Accounts API allows developers to create and manage
    virtual bank accounts for receiving payments. There is no fixed limit to
    the number of virtual accounts that can be created for customers. The API
    supports creating, fetching, filtering, updating, and expiring virtual
    accounts, enabling businesses to collect payments via bank transfers with
    unique account numbers assigned to individual customers or transactions.
  version: '1.0.0'
  contact:
    name: Nomba Developer Support
    url: https://developer.nomba.com
  termsOfService: https://nomba.com/terms
externalDocs:
  description: Nomba Virtual Accounts Documentation
  url: https://developer.nomba.com/nomba-api-reference/virtual-accounts/create-virtual-account
servers:
  - url: https://api.nomba.com
    description: Production Server
  - url: https://sandbox.nomba.com
    description: Sandbox Server
tags:
  - name: Virtual Accounts
    description: >-
      Endpoints for creating, fetching, filtering, updating, and expiring
      virtual bank accounts used for payment collection.
security:
  - bearerAuth: []
paths:
  /v1/accounts/virtual:
    post:
      operationId: createVirtualAccount
      summary: Create a virtual account
      description: >-
        Creates a new virtual bank account that can receive payments via bank
        transfers. Each virtual account is assigned a unique account number.
        There is no fixed limit on the number of virtual accounts that can be
        created for customers.
      tags:
        - Virtual Accounts
      parameters:
        - $ref: '#/components/parameters/accountId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - accountName
              properties:
                accountName:
                  type: string
                  description: >-
                    The name to assign to the virtual account, typically the
                    customer name or transaction reference.
                  example: John Doe
                accountRef:
                  type: string
                  description: >-
                    A unique reference for the virtual account. If not provided,
                    one will be generated automatically.
                expiryDate:
                  type: string
                  format: date-time
                  description: >-
                    Optional expiry date for the virtual account. After this
                    date, the account will no longer accept payments.
      responses:
        '200':
          description: Virtual account created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VirtualAccountResponse'
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /v1/accounts/virtual/filter:
    post:
      operationId: filterVirtualAccounts
      summary: Filter virtual accounts
      description: >-
        Filters and retrieves virtual accounts based on specified criteria.
        Supports pagination and filtering by account status, name, or
        reference.
      tags:
        - Virtual Accounts
      parameters:
        - $ref: '#/components/parameters/accountId'
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                accountName:
                  type: string
                  description: >-
                    Filter by virtual account name.
                accountRef:
                  type: string
                  description: >-
                    Filter by virtual account reference.
                status:
                  type: string
                  description: >-
                    Filter by virtual account status.
                  enum:
                    - active
                    - expired
                page:
                  type: integer
                  description: >-
                    Page number for pagination.
                  minimum: 0
                pageSize:
                  type: integer
                  description: >-
                    Number of results per page.
                  minimum: 1
                  maximum: 100
      responses:
        '200':
          description: Virtual accounts retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VirtualAccountListResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /v1/accounts/virtual/{accountRef}:
    get:
      operationId: fetchVirtualAccount
      summary: Fetch a virtual account
      description: >-
        Retrieves the details of a specific virtual account by its unique
        account reference identifier.
      tags:
        - Virtual Accounts
      parameters:
        - $ref: '#/components/parameters/accountRef'
        - $ref: '#/components/parameters/accountId'
      responses:
        '200':
          description: Virtual account details retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VirtualAccountResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Virtual account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    put:
      operationId: updateVirtualAccount
      summary: Update a virtual account
      description: >-
        Updates the details of an existing virtual account, such as the
        account name or expiry date.
      tags:
        - Virtual Accounts
      parameters:
        - $ref: '#/components/parameters/accountRef'
        - $ref: '#/components/parameters/accountId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                accountName:
                  type: string
                  description: >-
                    The updated name for the virtual account.
                expiryDate:
                  type: string
                  format: date-time
                  description: >-
                    Updated expiry date for the virtual account.
      responses:
        '200':
          description: Virtual account updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VirtualAccountResponse'
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Virtual account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /v1/accounts/virtual/{identifier}:
    delete:
      operationId: expireVirtualAccount
      summary: Expire a virtual account
      description: >-
        Expires (deactivates) a virtual account so that it can no longer
        receive payments. This action is irreversible.
      tags:
        - Virtual Accounts
      parameters:
        - name: identifier
          in: path
          required: true
          description: >-
            The unique identifier of the virtual account to expire.
          schema:
            type: string
        - $ref: '#/components/parameters/accountId'
      responses:
        '200':
          description: Virtual account expired successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Virtual account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        OAuth2 bearer token obtained from the Nomba Authentication API.
  parameters:
    accountId:
      name: accountId
      in: header
      required: true
      description: >-
        The unique identifier of the parent business account.
      schema:
        type: string
    accountRef:
      name: accountRef
      in: path
      required: true
      description: >-
        The unique reference identifier of the virtual account.
      schema:
        type: string
  schemas:
    VirtualAccountResponse:
      type: object
      properties:
        code:
          type: string
          description: >-
            Response status code.
          example: '00'
        description:
          type: string
          description: >-
            Human-readable description of the response.
          example: Success
        data:
          $ref: '#/components/schemas/VirtualAccount'
    VirtualAccountListResponse:
      type: object
      properties:
        code:
          type: string
          description: >-
            Response status code.
          example: '00'
        description:
          type: string
          description: >-
            Human-readable description of the response.
          example: Success
        data:
          type: object
          properties:
            results:
              type: array
              description: >-
                List of virtual accounts matching the filter criteria.
              items:
                $ref: '#/components/schemas/VirtualAccount'
            cursor:
              type: string
              description: >-
                Pagination cursor for retrieving the next page of results.
    VirtualAccount:
      type: object
      properties:
        accountRef:
          type: string
          description: >-
            The unique reference identifier for the virtual account.
        accountName:
          type: string
          description: >-
            The name associated with the virtual account.
        accountNumber:
          type: string
          description: >-
            The bank account number assigned to the virtual account.
        bankName:
          type: string
          description: >-
            The name of the bank providing the virtual account.
        status:
          type: string
          description: >-
            The current status of the virtual account.
          enum:
            - active
            - expired
        expiryDate:
          type: string
          format: date-time
          description: >-
            The date and time the virtual account expires.
        createdAt:
          type: string
          format: date-time
          description: >-
            The date and time the virtual account was created.
    SuccessResponse:
      type: object
      properties:
        code:
          type: string
          description: >-
            Response status code.
          example: '00'
        description:
          type: string
          description: >-
            Human-readable description of the response.
          example: Success
    ErrorResponse:
      type: object
      properties:
        code:
          type: string
          description: >-
            Error status code.
        description:
          type: string
          description: >-
            Human-readable description of the error.
        errors:
          type: array
          description: >-
            List of specific error details.
          items:
            type: string