toJson method
Implementation
Map<String, dynamic> toJson() => {
'tradeId': tradeId,
'createdAt': createdAt?.toIso8601String(),
'productId': productId,
'orderId': orderId,
'userId': userId,
'profileId': profileId,
'liquidity': liquidity,
'price': price,
'size': size,
'fee': fee,
'side': side,
'settled': settled,
'usdVolume': usdVolume
};