Account

The account.go file defines the Account asset within the Open Asset Model. An Account represents a financial or entity-managed asset, such as a bank account, online payment account, or corporate account. The model allows accounts to establish structured relationships with entities (individuals or organizations), funds transfers, and financial identifiers such as IBAN and SWIFT codes.

Table of Contents

• Overview
• Account Structure
• Attributes
• Implemented Interfaces and Methods
• Key()
• AssetType()
• JSON()
• Relationship with the Open Asset Model
• Usage

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// Overview

The Account asset is an integral part of the Open Asset Model, designed to support:

• Financial & entity-managed accounts (e.g., bank, corporate, or payment accounts).

• Multiple relationships such as entity ownership (Person/Organization) and fund transfers.

• Standardized data structure for integration with external financial and asset-tracking systems.

The Account struct is designed with JSON tags for serialization, ensuring seamless integration with APIs and structured storage systems.

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// Account Structure

The Account struct defines key attributes necessary for financial asset representation.

// Account represents an account managed by an organization.
type Account struct {
    ID       string  `json:"unique_id"`         // Unique identifier
    Type     string  `json:"account_type"`      // Type of account (e.g., savings, checking)
    Username string  `json:"username,omitempty"` // Optional username
    Number   string  `json:"account_number,omitempty"` // Account number
    Balance  float64 `json:"balance,omitempty"`  // Account balance
    Active   bool    `json:"active,omitempty"`  // Status of the account
}

---

Attribute Breakdown

Field Name	Type	JSON Tag	Description
ID	string	"unique_id"	Unique identifier for the account (used as the asset key)
Type	string	"account_type"	Represents the type of account (e.g., savings, checking)
Username	string	"username,omitempty"	Optional username associated with the account
Number	string	"account_number,omitempty"	Optional account number used as a secondary identifier
Balance	float64	"balance,omitempty"	Represents the current balance of the account
Active	bool	"active,omitempty"	Indicates whether the account is active

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omitempty

The omitempty option in the JSON tags ensures that if a field is empty or its default value, it will be omitted from JSON serialization. This helps keep the data streamlined.

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// Implemented Interfaces and Methods

The Account struct implements the Asset interface, ensuring consistency across the Open Asset Model.

Key()

• Purpose:
  Returns a unique key (identifier) for the asset. This key is fundamental for distinguishing between different assets.

• Implementation:

// Key implements the Asset interface.
func (a Account) Key() string { 
    return a.ID 
}

Usage:

• Used to uniquely identify the account.

• Serves as the primary key for asset indexing and retrieval.

---

AssetType()

• Purpose:
  Returns the specific type of the asset within the Open Asset Model.

• Implementation:

// AssetType implements the Asset interface.
func (a Account) AssetType() model.AssetType { 
    return model.Account 
}

Usage:

• Allows systems to categorize the asset as an Account.

• Ensures type consistency when processing different asset categories.

---

JSON()

• Purpose:
  Serializes the Account struct into JSON format for data exchange and storage.

• Implementation:

// JSON implements the Asset interface.
func (a Account) JSON() ([]byte, error) { 
    return json.Marshal(a) 
}

Usage:

• Converts the asset into JSON format for APIs, databases, and logging.

• Enables data transmission across services.

---

// Relationship with the Open Asset Model

The Open Asset Model provides a standardized approach to handling digital and physical assets. The Account asset is a critical component and supports:

• User Entities: Representing Persons or Organizations that own the account.

• Funds Transfers: Tracking financial transactions between accounts.

• Banking Identifiers: Supporting IBAN and SWIFT codes for financial integration.

By adhering to these relationships, the Account model ensures structured data exchange between security, financial, and asset management systems.

---

// Usage

The Open Asset Model provides structured asset management for accounts.

Below is an example demonstrating how to:

• Retrieve account details.

• Serialize an account to JSON.

package main

import (
    "encoding/json"
    "fmt"
    "github.com/owasp-amass/open-asset-model/account"
)

func main() {
    // Define an example account asset
    acc := account.Account{
        ID:       "acc-12345",
        Type:     "Savings",
        Username: "johndoe",
        Number:   "987654321",
        Balance:  1500.75,
        Active:   true,
    }

    // Serialize the account to JSON
    jsonData, err := acc.JSON()
    if err != nil {
        fmt.Println("Error serializing account to JSON:", err)
        return
    }

    fmt.Printf("Account Type: %s\n", acc.Type)
    fmt.Printf("Serialized JSON: %s\n", string(jsonData))
}

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// Summary

The account.go file is a fundamental part of the Open Asset Model, ensuring structured and standardized management of financial and user-managed accounts.

Key takeaways:

• Defines an Account struct that represents various financial accounts.

• Implements the Asset interface to ensure consistency.

• Supports relationships with user entities, financial transactions, and banking identifiers.

• Provides JSON serialization for easy data exchange.

By following this structured approach, contributors can extend account functionality, while users can efficiently manage financial assets in their security and asset intelligence workflows.

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