Flex Blockchain Development

Flex A Next-Generation Decentralized Exchange

Flex is an advanced decentralized exchange (DEX) built on the TON blockchain, designed to overcome the limitations of existing DeFi platforms. By integrating a decentralized and distributed limit order book (DLOB) model, Flex mimics a traditional centralized limit order book (CLOB) but with superior scalability and speed. The platform addresses common issues in decentralized exchanges, such as slow execution and complex management, through the use of Smart Contracts. This allows Flex to achieve high transaction speeds and handle millions of transactions per second. Its architecture supports a range of DeFi applications and trading strategies, offering users efficient and reliable trade execution. Flex’s innovative design sets a new standard in the DeFi space, combining the benefits of decentralization with performance comparable to traditional centralized exchanges.

Client Requirements

Flex was developed to address critical shortcomings in existing decentralized exchanges, primarily their slow execution speeds and complex management challenges. Clients needed a platform capable of handling a high volume of transactions with minimal latency, ensuring that trades were executed quickly and efficiently. Traditional decentralized exchanges often struggled with performance issues and lacked advanced trading functionalities, making it essential for Flex to offer a solution that could compete with the speed and reliability of centralized exchanges. The goal was to create a system that would not only enhance trade execution but also support a broad range of DeFi applications, including lending, borrowing, and trading strategies.

Additionally, Flex aimed to integrate seamlessly with the growing DeFi ecosystem while maintaining decentralization and security. Clients required a platform that could support innovative financial products and provide an intuitive user experience. This involved developing a robust infrastructure capable of managing complex trading strategies and high transaction throughput without compromising the platform’s decentralization principles. Flex’s architecture needed to ensure that it could handle millions of transactions per second, meet the demands of advanced DeFi applications, and provide a reliable and efficient trading environment.

Flex Client Requirement

Features

Flex Decentralized Exchange

Decentralized Limit Order Book

Flex utilizes a decentralized limit order book (DLOB) model, integrating the central limit order book (CLOB) approach from traditional exchanges into a distributed smart contract framework. This allows for real-time order matching and trade execution without centralization. Each position in the order book is represented by a separate smart contract, ensuring efficient management and execution. The distributed nature of Flex’s architecture ensures that the order book remains scalable and responsive, even under high transaction volumes, overcoming the limitations of conventional decentralized exchanges.


High-Speed Execution

Flex is engineered for rapid trade execution, achieving transaction speeds comparable to centralized exchanges. By distributing order book logic across multiple atomic smart contracts and leveraging user computers for decision-making, Flex minimizes latency. The platform’s average execution time is just 0.08 seconds across 128 threads, capable of handling approximately 80,000 trading pair messages per second per shardchain. This design ensures immediate order execution and settlement, providing users with a fast and seamless trading experience, crucial for high-frequency trading strategies and time-sensitive transactions.


Multi-Blockchain Compatibility

Flex is built on the TON blockchain and is designed to integrate seamlessly with various blockchains. This multi-blockchain compatibility allows Flex to support a diverse range of DeFi applications and trading pairs. By enabling cross-chain interactions, the platform enhances liquidity and offers users more trading opportunities. This feature ensures that Flex can adapt to the evolving blockchain landscape, providing flexibility and scalability as new technologies and networks emerge. It also positions Flex as a central hub for decentralized finance across multiple blockchain ecosystems.


Advanced Trading Strategies

Flex supports a wide range of advanced trading strategies, including limit orders, market orders, and more complex options such as iceberg orders. Users can create and manage various order types, tailored to their trading needs. The platform’s architecture allows for the implementation of sophisticated trading algorithms, enabling users to execute complex strategies with precision. By supporting advanced trading functionalities, Flex caters to both novice traders and experienced professionals seeking to optimize their trading approaches and achieve better market outcomes.

Dynamic Order Book Composition

The Flex order book is composed dynamically by retrieving and calculating contract addresses based on trading pairs and price levels. Users can access the entire order book by querying deployed contracts and calculating addresses for specific price steps. This approach ensures that the order book remains up-to-date and reflective of current market conditions. The ability to retrieve and view the order book dynamically allows traders to make informed decisions based on the latest available data, improving their trading accuracy and efficiency.


Automated Market Maker Integration

Flex incorporates an Automated Market Maker (AMM) model, which can be integrated with subscription-based smart contracts. This feature allows for automatic execution of trades based on predefined strategies and conditions. The AMM system helps maintain liquidity and ensures that users have access to competitive pricing. By enabling automatic trading and liquidity management, Flex enhances the overall efficiency of the market and supports continuous trading activity, contributing to a more vibrant and liquid trading environment.


User-Friendly Interface

Flex provides an intuitive and user-friendly interface through its DeBot system, which simplifies interactions with the platform. Users can easily create new pairs, place orders, and manage their trades through a streamlined interface. The DeBot system also supports various user interface options, allowing for customization and ease of use. By focusing on user experience, Flex ensures that traders can navigate the platform effortlessly, whether they are new to decentralized exchanges or experienced traders seeking a reliable and accessible trading environment.


Formal Verification

Flex is distinguished by its use of formal verification, a rigorous process that mathematically proves the correctness of its software. This ensures that the platform operates as intended and maintains high security and reliability standards. Formal verification is rarely used in the blockchain space due to its complexity and cost, but Flex’s commitment to this process underscores its dedication to providing a secure and trustworthy trading environment. This feature enhances user confidence and ensures that the platform’s smart contracts are robust and free from critical vulnerabilities.

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Flex Development

Time & Development

Planing

Detailed project planning and requirement gathering.

Design

Architectural design and UI/UX design.


Implementation

Development of core functionalities and integration of blockchain technology.

Testing

Unit testing, integration testing, and security testing.


Deployment

Gradual deployment and monitoring.

Maintenance

Ongoing support and feature enhancements.


Requirement Analysis

5 Days

Design and Architecture

6 Days


Development

11 Days

Testing

3 Days


Deployment

4 Days

Maintenance and Support

Ongoing

Consensus Mechanism

Proof of Stake (PoS)

Proof of Stake (PoS) is a consensus mechanism where validators are selected based on the number of tokens they hold and are willing to "stake" as collateral. Unlike Proof of Work (PoW), PoS does not rely on energy-intensive computations. Validators are chosen to create new blocks and verify transactions according to the amount of stake they have, incentivizing them to act honestly. This system reduces the risk of centralization, increases scalability, and lowers energy consumption, making it a more environmentally friendly and efficient alternative to traditional consensus mechanisms.


Delegated Proof of Stake (DPoS)

Delegated Proof of Stake (DPoS) builds on PoS by introducing a layer of delegation. Token holders vote for a small number of delegates who are then responsible for validating transactions and creating new blocks. This mechanism enhances network efficiency and scalability by reducing the number of validators involved in the consensus process. DPoS allows for faster block times and higher transaction throughput while still leveraging the security and decentralization aspects of PoS. It also encourages active participation from stakeholders who vote for delegates they trust.


Proof of Work (PoW)

Proof of Work (PoW) requires network participants, known as miners, to solve complex cryptographic puzzles to validate transactions and create new blocks. The first miner to solve the puzzle broadcasts the solution to the network, which then verifies the proof. PoW is known for its security and resistance to attacks, as altering any part of the blockchain would require redoing the work for all subsequent blocks. However, PoW is criticized for its high energy consumption and slower transaction speeds compared to other consensus mechanisms, making it less scalable.


Practical Byzantine Fault Tolerance (PBFT)

Practical Byzantine Fault Tolerance (PBFT) is designed to address the Byzantine Generals Problem, which involves achieving consensus in the presence of malicious actors. PBFT requires a majority of nodes to agree on the validity of transactions before they are added to the blockchain. This consensus mechanism is known for its robustness and fault tolerance, as it can handle up to one-third of nodes being faulty or malicious. PBFT provides high throughput and low latency but can become less efficient as the number of nodes increases due to increased communication overhead.

Proof of Authority (PoA)

Proof of Authority (PoA) is a consensus mechanism where a limited number of trusted validators, known as authorities, are responsible for validating transactions and creating new blocks. Unlike PoW or PoS, PoA does not require extensive computational resources or staking tokens. Instead, it relies on the reputation and identity of the validators, who are pre-approved and accountable for their actions. PoA offers high throughput and low latency, making it suitable for private and consortium blockchains, but it sacrifices some degree of decentralization and trustlessness.


Proof of Space (PoSpace)

Proof of Space (PoSpace), also known as Proof of Capacity (PoC), leverages the available storage space of participants to validate transactions and create new blocks. Participants allocate unused disk space to store cryptographic data, which is later used to prove their commitment to the network. The more storage a participant provides, the higher their chances of being selected to validate transactions. PoSpace is considered energy-efficient compared to PoW, as it relies on storage rather than computational power. However, it may be less secure and less battle-tested than other consensus mechanisms.


Proof of Elapsed Time (PoET)

Proof of Elapsed Time (PoET) is a consensus mechanism that uses random wait times to determine which participant gets to validate the next block. Participants are required to wait for a random period before they can create a block. The process is managed by a trusted execution environment (TEE) to ensure fairness and randomness in the wait times. PoET is designed to be energy-efficient, as it avoids the computational intensity of PoW. It is commonly used in permissioned blockchains, where trust in the execution environment is a key factor.


Proof of Stake and Delegated Proof of Stake (PoS & DPoS)

Combining Proof of Stake (PoS) and Delegated Proof of Stake (DPoS) enhances scalability and security by integrating features from both mechanisms. In this hybrid model, token holders use PoS to select a small number of delegates responsible for validating transactions and creating blocks. The delegates operate under PoS principles, but the addition of delegation streamlines the consensus process, reducing the number of participants involved in block creation. This approach improves transaction speed and network efficiency while maintaining the security and decentralization benefits of PoS.

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For Customers

Project Approach & Results



Project Approach The development of Flex began with a thorough analysis of the existing landscape in decentralized staking platforms. The team embarked on extensive market research to identify gaps and challenges in current staking solutions, aiming to address issues related to security, transparency, and user experience. This research involved studying competitors, understanding user pain points, and evaluating industry trends. The objective was to craft a platform that not only met the essential requirements of staking but also introduced innovative features to enhance user engagement and satisfaction.
During the design phase, the focus was on creating an intuitive and user-friendly interface that catered to both novice and experienced users. The platform's features, including the staking calculator and full control over funds, were designed to be easily accessible and straightforward. To ensure robustness, the development team implemented a secure and scalable architecture using advanced cryptographic techniques. This approach aimed to safeguard user data and transaction integrity while accommodating high transaction volumes.
The development process included rigorous testing phases to identify and mitigate potential vulnerabilities, ensuring the platform's reliability under various scenarios. Various consensus mechanisms were integrated to enhance the network's security and efficiency. The team adopted an iterative approach, incorporating feedback from a pilot user group to refine and optimize the platform continuously.

Project Results Flex has demonstrated substantial success and impact since its inception, marking a significant milestone in the decentralized staking space. The platform has successfully accumulated a substantial staked value of $34,366,628, reflecting its ability to attract and sustain considerable user investment. This impressive figure is complemented by the platform’s daily rewards system, which has consistently delivered value to users. With over 2,359 active participants and a remarkable 99.9% success rate in staking rounds, Flex has proven its capability to maintain a high level of operational efficiency and reliability.
The success of Flex is further underscored by its innovative features, such as the staking calculator and the ability to maintain full control over staked funds. The staking calculator has provided users with valuable insights into their potential earnings, enhancing their ability to make informed investment decisions. Additionally, the feature allowing users to replenish their stakes at any time has been well-received, providing flexibility and maximizing income opportunities. User feedback has been overwhelmingly positive, with many appreciating the platform’s ease of use, transparent reward system, and security features. 

flex Project & Results
flex Challenge

Challenges

Execution Speed and Scalability

One of the significant challenges Flex faced was achieving high-speed execution and scalability within a decentralized environment. Traditional decentralized exchanges often struggle with latency and slow order processing due to the time required to validate and execute transactions on the blockchain. To address this, Flex needed to design a system that could handle large volumes of transactions while maintaining rapid execution times. This required a novel approach to order book management, utilizing a decentralized limit order book (DLOB) model on the TON blockchain. By implementing a multi-threaded architecture and distributing order processing across multiple smart contracts, Flex successfully reduced execution time to an average of 0.08 seconds across 128 threads. 

Front-Running and Order Management

Front-running, where traders exploit transaction visibility to gain an unfair advantage, has been a persistent issue in decentralized exchanges. In traditional systems, this problem is often mitigated by miners who prioritize transactions based on gas fees. Flex faced the challenge of preventing front-running within its decentralized framework, where traditional solutions do not apply. To counteract this, Flex implemented a system where each order is handled by individual smart contracts, and the matching logic is processed by user clients. This approach minimizes the opportunity for front-running by decentralizing the order matching process and ensuring that all trades are executed fairly. 

Complex Management and User Interface

Managing a decentralized limit order book (DLOB) presents inherent complexities, particularly in terms of user interface and experience. Flex needed to create a platform that not only offered advanced trading functionalities but also remained user-friendly. The challenge was to design an interface that could handle the complexity of order book management, including various order types and trading strategies, while being accessible to users with varying levels of expertise. Flex addressed this by integrating automated market makers (AMMs) and dynamic order book composition into its platform. The inclusion of DeBots and an intuitive graphical user interface (GUI) streamlined the trading process, making it easier for users to interact with the platform and execute trades.

Resources Used

The project utilized a range of resources to achieve its goals.

Technical Resources:- High-performance servers, cloud services, and development tools.

Financial Resources:- Budget allocated for development, testing, and deployment phases.

Human Resources:- A team of blockchain developers, AI specialists, UI/UX designers, and project managers.

Project Cost

Technology Stacks

Flex offers high-speed trading with 0.08-second execution, automated market makers, a user-friendly interface, formal verification for security, flexible order management, cross-platform integration, and comprehensive trading tools for their users:

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