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Building a Decentralized Exchange on EOS

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Building a DEX on the EOSIO blockchain offers several benefits, including high speed, low transaction fees, and the ability to leverage the power of smart contracts. In this expert article, we will explore the process of building a DEX on EOSIO, from designing and building to launching the exchange. Do you want to trade crypto but don’t want to do the hard work? The can manage it for you. Try now and get fully automated trading experience!

Designing a Decentralized Exchange on EOSIO

When designing a decentralized exchange on the EOSIO blockchain, there are several key considerations to keep in mind. The first step is to decide on the exchange model, which can be either order book-based or automated market-making (AMM). Order book-based exchanges rely on matching buyers and sellers based on their orders, while AMM-based exchanges use algorithms to determine the price of assets based on their supply and demand.

Once the exchange model has been decided, the next step is to design the smart contracts for the DEX. These smart contracts will handle the execution of trades, as well as managing the custody of assets during the trade process. It’s important to determine the user roles and permissions, such as who can create orders, cancel orders, and execute trades.

Another important aspect of designing a DEX on EOSIO is ensuring that the user experience is smooth and intuitive. This includes designing a user interface that makes it easy for users to create and manage their orders, as well as providing clear feedback on the status of their trades.

Securing and Auditing the Decentralized Exchange

securing and auditing a decentralized exchange (DEX) on the EOSIO blockchain, there are several best practices that developers should follow. First and foremost, it’s essential to follow smart contract security best practices, such as avoiding complex logic and ensuring that all inputs are properly validated. 

Once the smart contracts have been developed and tested, they should undergo a comprehensive security audit by an independent third-party auditor. The auditor will review the code for vulnerabilities and provide recommendations for improving the security of the DEX. It’s important to address any vulnerabilities identified by the auditor before launching the DEX on the EOSIO mainnet.

During the operation of the DEX, developers should implement continuous monitoring and auditing to detect and mitigate any potential security issues. This can include monitoring for suspicious activity, implementing access controls to limit the actions that can be taken by different user roles, and regularly reviewing the DEX’s logs and transaction history.

Launching the Decentralized Exchange on EOSIO

Launching a decentralized exchange (DEX) on the EOSIO blockchain involves several important steps. Before launching on the mainnet, it’s important to deploy the DEX on a testnet to ensure that it’s functioning correctly and to gather feedback from users.

Once the DEX has been tested on the testnet, it’s time to deploy it on the mainnet. This involves selecting an appropriate EOSIO-based blockchain that meets the DEX’s requirements for speed, scalability, and reliability. The DEX smart contracts and other necessary components must be deployed to the mainnet, and the frontend user interface must be integrated with the smart contracts.

After launching the DEX on the mainnet, developers must perform post-launch maintenance and upgrades to ensure that the DEX continues to function properly and that any issues are quickly addressed. This may involve performing upgrades to the smart contracts to add new features or fix bugs, as well as monitoring the DEX’s performance and security.

To promote the DEX and attract users, developers may need to engage in marketing and outreach efforts. This can include creating social media accounts, participating in relevant communities and forums, and creating educational content to help users understand how to use the DEX.

Finally, it’s important to consider the long-term vision for the DEX and how it can be scaled and improved over time. This may involve partnering with other projects in the EOSIO ecosystem to increase liquidity and expand the DEX’s functionality, as well as exploring new use cases and user demographics for the DEX.


Building a DEX on the EOSIO blockchain requires careful planning, attention to security, and a focus on creating a smooth and intuitive user experience. By following best practices for smart contract development, security auditing, and post-launch maintenance, developers can create a successful and thriving exchange that meets the needs of the DeFi ecosystem. With the power of EOSIO behind them, developers have the tools and resources they need to create a cutting-edge DEX that can compete with centralized exchanges.