Technical principle of decentralized exchange system development - digital currency decentralized exchange system development (illustrative case)

　　What is a centralized exchange:

　　In a centralized exchange,users deposit digital assets in the exchange,which will be centrally kept and controlled by the exchange.When users conduct transactions,they will submit transaction instructions to the exchange for transaction matching,and inform users of the results after the transaction.Except for currency charging and withdrawal,the whole transaction process is completed in the server of the exchange without interaction with the blockchain.

　　 Advantages of centralized exchange ：

　　1、 Traditional mature technology solutions , Transaction concurrency processing is difficult , It can provide users with good trading services .

　　2、 Huge number of users and transactions , It also brings enough trading depth , Provides sufficient liquidity .

　　3、 The changing handling fee rules can be formulated according to the operation strategy . In order to encourage users to conduct high-frequency transactions , You can even charge no transaction fee . But generally, a handling fee will be charged for the withdrawal of assets .

　　4、 The essence of the transaction is IOU Bookkeeping , The cost of developing technology is low and the difficulty is small .

　　 What is a decentralized exchange ：

　　 In decentralized exchanges , The money is in the user's wallet address or trading smart contract , It's completely under the control of the user . When a user initiates a transaction , Exchanges execute smart contracts to complete transactions , Asset transfer is completed in the chain . On the chain of transaction records , Open and transparent .

　　 The development of digital currency trading system mainly focuses on the security of the system , The digital currency trading system development company prevents the security of the system from the following points ：

　　1、 Distributed deployment ： Store the data on multiple machines and equipment , Adopt scalable system structure , Use multiple storage servers to share the storage load . It not only solves the bottleneck problem of single storage server in traditional centralized storage system , It also improves the available expansion of the system .

　　2、 Memory matching ： Faster processing concurrency , Make a quick deal .

　　 It is reported that the exchange system developed by top blockchain service providers adopts a high-performance matchmaking engine , Every deal is for 5 ten thousand +TPS, It supports the transaction concurrency of the largest similar websites in the world , And access to professional quantitative tools .

　　 How does the blockchain exchange ensure the security of trading information

　　 The exchange platform mainly includes matching transactions 、 Exchange risk control . The security of blockchain digital currency exchange is mainly divided into two parts ： The exchange system 、 Wallet system , Provide risk control system and scheme design for the exchange , Provide a blockchain based management framework , And the trading strategy risk control of digital currency . By analyzing the block information of digital currency 、 Clear 、 Modeling analysis , Extract relevant information , For institutions 、 Digital currency exchange 、 Professional users provide research services and customized development services of risk control system .

　　 The trade matching engine should be the core of any exchange . It can access the order book , Match sales orders , Execute the transaction , Calculate the balance . No trading engine , The exchange will not work .

　　 Blockchain based digital currency trading system architecture ： Digital currency exchange strategy