{
  "accepted": [
    {
      "id": "TXN-001",
      "type": "deposit",
      "account_id": "ACC-001",
      "amount": 500.0,
      "description": "Salary payment",
      "status": "accepted"
    },
    {
      "id": "TXN-002",
      "type": "withdrawal",
      "account_id": "ACC-001",
      "amount": 200.0,
      "description": "ATM withdrawal",
      "status": "accepted"
    },
    {
      "id": "TXN-006",
      "type": "transfer",
      "account_id": "ACC-001",
      "to_account_id": "ACC-002",
      "amount": 750.0,
      "description": "Transfer to Bob",
      "status": "accepted"
    }
  ],
  "rejected": [
    {
      "id": "TXN-003",
      "type": "withdrawal",
      "account_id": "ACC-002",
      "amount": 1500.0,
      "description": "Rent payment - exceeds balance",
      "status": "rejected",
      "reason": "insufficient funds"
    },
    {
      "id": "TXN-004",
      "type": "deposit",
      "account_id": "ACC-002",
      "amount": -100.0,
      "description": "Invalid negative deposit",
      "status": "rejected",
      "reason": "amount must be positive"
    },
    {
      "id": "TXN-005",
      "type": "deposit",
      "account_id": "ACC-003",
      "amount": 1000.0,
      "description": "Deposit to frozen account",
      "status": "rejected",
      "reason": "account is frozen"
    },
    {
      "id": "TXN-007",
      "type": "withdrawal",
      "account_id": "ACC-999",
      "amount": 50.0,
      "description": "Unknown account",
      "status": "rejected",
      "reason": "account not found"
    },
    {
      "id": "TXN-008",
      "type": "deposit",
      "account_id": "ACC-001",
      "amount": 0,
      "description": "Zero-amount deposit",
      "status": "rejected",
      "reason": "amount must be positive"
    }
  ]
}