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OpenAPI Specification

openapi: 3.2.0
info:
  title: Hifi Account Transfer Approvals API
  version: 2.0.0
  description: API documentation for Hifi
servers:
- url: https://production.hifibridge.com
  description: Production server
- url: https://sandbox.hifibridge.com
  description: Sandbox server
security:
- bearerAuth: []
tags:
- name: Transfer Approvals
  description: Transfer approval workflow and admin actions
paths:
  /v2/transfer-approvals:
    get:
      tags:
      - Transfer Approvals
      summary: List all pending transfer approvals
      description: Retrieve all pending transfer approvals that require admin action
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 20
        description: Number of approvals to return
      - name: offset
        in: query
        required: false
        schema:
          type: integer
          minimum: 0
          default: 0
        description: Number of approvals to skip
      responses:
        '200':
          description: Transfer approvals retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetTransferApprovalsResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/NotFoundResponse'
        '500':
          $ref: '#/components/responses/InternalServerErrorResponse'
  /v2/transfer-approvals/{approvalId}/approve:
    post:
      tags:
      - Transfer Approvals
      summary: Approve a transfer
      description: Approve a pending transfer. If enough approvals are received, the transfer will be queued for execution.
      parameters:
      - name: approvalId
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: ID of the transfer approval
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ApproveTransferRequest'
      responses:
        '200':
          description: Transfer approval recorded successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApproveTransferResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/NotFoundResponse'
        '500':
          $ref: '#/components/responses/InternalServerErrorResponse'
  /v2/transfer-approvals/{approvalId}/reject:
    post:
      tags:
      - Transfer Approvals
      summary: Reject a transfer
      description: Reject a pending transfer. This will cancel the transfer and return funds to the sender.
      parameters:
      - name: approvalId
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: ID of the transfer approval
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RejectTransferRequest'
      responses:
        '200':
          description: Transfer rejected successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RejectTransferResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/NotFoundResponse'
        '500':
          $ref: '#/components/responses/InternalServerErrorResponse'
  /v2/transfer-approvals/{approvalId}:
    get:
      tags:
      - Transfer Approvals
      summary: Get a transfer approval
      description: Retrieve detailed information about a specific transfer approval
      parameters:
      - name: approvalId
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: ID of the transfer approval
      responses:
        '200':
          description: Transfer approval details retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetTransferApprovalResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedResponse'
        '404':
          $ref: '#/components/responses/NotFoundResponse'
        '500':
          $ref: '#/components/responses/InternalServerErrorResponse'
components:
  schemas:
    InternalServerError:
      type: object
      properties:
        error:
          type: string
          example: Unexpected error happened
    Unauthorized:
      type: object
      properties:
        error:
          type: string
          example: Not authorized
    TransferApprovalDetail:
      type: object
      properties:
        id:
          type: string
          format: uuid
          example: approval-123-e89b-12d3-a456-426614174002
        transferId:
          type: string
          format: uuid
          example: transfer-456-e89b-12d3-a456-426614174003
        status:
          type: string
          enum:
          - PENDING
          - APPROVED
          - REJECTED
          - EXPIRED
          example: PENDING
          description: Current status of the approval process
        createdAt:
          type: string
          format: date-time
          example: '2024-01-15T10:30:00.000Z'
        updatedAt:
          type: string
          format: date-time
          example: '2024-01-15T11:00:00.000Z'
          description: When the approval was last updated
        transferType:
          type: string
          enum:
          - WALLET.TRANSFER
          - WALLET.TRANSFER.BATCH
          - WALLET.BRIDGE
          example: WALLET.TRANSFER
          description: Type of transfer requiring approval
        votes:
          type: array
          items:
            $ref: '#/components/schemas/ApprovalVote'
          description: Array of votes cast on this approval
    GetTransferApprovalResponse:
      type: object
      properties:
        success:
          type: boolean
          example: true
          description: Whether the operation was successful
        message:
          type: string
          example: Approval details retrieved successfully
          description: Human-readable message about the operation
        approval:
          $ref: '#/components/schemas/TransferApprovalDetail'
    RejectTransferRequest:
      type: object
      description: Request body for rejecting a transfer
      properties:
        reason:
          type: string
          maxLength: 1000
          description: Reason for rejecting the transfer
          example: Transfer amount exceeds daily limit
    RejectTransferResponse:
      type: object
      properties:
        success:
          type: boolean
          example: true
          description: Whether the operation was successful
        message:
          type: string
          example: Transfer rejected successfully
          description: Human-readable message about the operation
        approvalId:
          type: string
          format: uuid
          description: ID of the approval being processed
          example: approval-123-e89b-12d3-a456-426614174002
        status:
          type: string
          enum:
          - REJECTED
          example: REJECTED
          description: Current status after rejection
        reason:
          type: string
          description: Reason for rejection
          example: Transfer amount exceeds daily limit
        timestamp:
          type: string
          format: date-time
          description: When the rejection was processed
          example: '2024-01-15T11:00:00.000Z'
    GetTransferApprovalsResponse:
      type: object
      properties:
        success:
          type: boolean
          example: true
          description: Whether the operation was successful
        message:
          type: string
          example: Pending approvals retrieved successfully
          description: Human-readable message about the operation
        count:
          type: integer
          description: Total number of pending approvals
          example: 2
        approvals:
          type: array
          items:
            $ref: '#/components/schemas/TransferApprovalSummary'
          description: Array of pending approval records
    ApproveTransferRequest:
      type: object
      description: Request body for approving a transfer
      properties:
        comment:
          type: string
          maxLength: 1000
          description: Optional comment explaining the approval decision
          example: Approved after reviewing transaction details
    ApproveTransferResponse:
      type: object
      properties:
        success:
          type: boolean
          example: true
          description: Whether the operation was successful
        message:
          type: string
          example: Transfer approved and initiated successfully
          description: Human-readable message about the operation
        approvalId:
          type: string
          format: uuid
          description: ID of the approval being processed
          example: approval-123-e89b-12d3-a456-426614174002
        status:
          type: string
          enum:
          - APPROVED
          example: APPROVED
          description: Current status after approval
        timestamp:
          type: string
          format: date-time
          description: When the approval was processed
          example: '2024-01-15T11:00:00.000Z'
    ApprovalVote:
      type: object
      properties:
        approverId:
          type: string
          format: uuid
          example: profile-789-e89b-12d3-a456-426614174006
          description: ID of the approver who cast the vote
        vote:
          type: string
          enum:
          - APPROVE
          - REJECT
          example: APPROVE
          description: The vote cast by the approver
        comment:
          type:
          - string
          - 'null'
          example: Approved after reviewing transaction details
          description: Optional comment explaining the vote decision
        createdAt:
          type: string
          format: date-time
          example: '2024-01-15T11:00:00.000Z'
          description: When the vote was cast
    TransferApprovalSummary:
      type: object
      properties:
        id:
          type: string
          format: uuid
          example: approval-123-e89b-12d3-a456-426614174002
        transferId:
          type: string
          format: uuid
          example: transfer-456-e89b-12d3-a456-426614174003
        status:
          type: string
          enum:
          - PENDING
          - APPROVED
          - REJECTED
          - EXPIRED
          example: PENDING
          description: Current status of the approval process
        createdAt:
          type: string
          format: date-time
          example: '2024-01-15T10:30:00.000Z'
        updatedAt:
          type: string
          format: date-time
          example: '2024-01-15T11:00:00.000Z'
          description: When the approval was last updated
        transferType:
          type: string
          enum:
          - WALLET.TRANSFER
          - WALLET.TRANSFER.BATCH
          - WALLET.BRIDGE
          example: WALLET.TRANSFER
          description: Type of transfer requiring approval
  responses:
    NotFoundResponse:
      description: Resource not found
      content:
        application/json:
          schema:
            type: object
            properties:
              status:
                type: string
                enum:
                - error
              error:
                type: object
                properties:
                  code:
                    type: string
                  message:
                    type: string
    InternalServerErrorResponse:
      description: Internal Server Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InternalServerError'
    UnauthorizedResponse:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Unauthorized'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT