Order book synchronization plays a vital role in the development of cryptocurrency exchanges since the traders depend on the current buy/sell orders to decide their actions. The Binance App Clone must ensure synchronization of its order book display with the updates coming from the matching engine even in the case of numerous updates.
One problem developers usually encounter is the inability to process the incoming updates without missing or duplicating some of the order entries. The use of sequence numbers will help in identifying the missing updates and getting the fresh snapshot when the data becomes inconsistent. While WebSocket connections allow transmitting updates in real-time, the first snapshot is necessary as the starting point for applying the updates correctly.
The Binance Clone Script must be able to take into account order fill, cancellation, and price level change updates. Each update should reflect the actual state of the matching engine and not just what is shown in the display interface.
Connection failures and lost messages are essential components to be considered when designing a Binance Exchange Clone. The application should be able to recognize old information and synchronize itself before displaying an up-to-date order book.
Depending on how these components will be implemented, traders will get either up-to-date order books or inaccurate market depth information.
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