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Integration

Unlocking New Heights: Band Oracle’s Integration with Flow’s Crescendo Upgrade

Band Protocol is excited to announce our latest strategic integration with Flow, a leading Layer 1 blockchain known for its speed, decentralization, and developer-friendly environment. This integration coincides with Flow’s most significant upgrade to date—Crescendo.

Unlocking New Heights: Band Oracle’s Integration with Flow’s Crescendo Upgrade
Band Protocol X Flow Crescendo: Official Announcement Sep 2024

TL;DR

  • Band Protocol integrates with Flow's Crescendo upgrade, enhancing the ecosystem with secure, real-time data solutions.
  • Flow developers now have access to reliable, cross-chain data feeds, essential for building advanced Web3 applications in DeFi, gaming, and NFTs.
  • With the integration of Band Standard Reference Contracts on Flow Crescendo, developers can seamlessly incorporate real-world data into their Flow’s Ethereum and EVM L2 dApps that work out of the box on Flow.
  • Developers are invited to join the Band and Flow communities, explore available tools, and start building innovative solutions on Flow.

Introduction

Band Protocol is excited to announce our latest strategic integration with Flow, a leading Layer 1 blockchain known for its speed, decentralization, and developer-friendly environment. This integration coincides with Flow’s most significant upgrade to date—Crescendo. Through this collaboration, Band Protocol’s secure and decentralized data oracle empowers Flow developers to create more dynamic and data-driven applications, marking a pivotal moment in the evolution of the Flow ecosystem.

Thanks to its commitment to scalability, speed, and user-friendly development tools, Flow has established itself as a premier platform for Web3 applications, digital assets, and games. The Crescendo upgrade represents Flow’s largest enhancement yet, introducing new features and improvements that further solidify its position as a top-tier blockchain. However, to fully realize these advancements, access to reliable real-world data is essential—an area where Band Protocol excels.

Why We Build on Flow's Crescendo

At Band Protocol, our mission is to empower Web3 developers with secure, scalable, and decentralized data solutions. Flow is a blockchain that uniquely aligns with this vision, offering a robust environment to innovate as follows:

  • Developer Accessibility: Flow’s tools, such as the Cadence language and its EVM compatibility, simplify the integration of Band Protocol’s data feeds, enabling faster development and quicker time-to-market for dApps.
  • Scalability and Speed: Flow’s architecture supports high throughput, ensuring your applications remain responsive even during peak usage, making it perfect for real-time data-driven dApps powered by Band.
  • Ecosystem Growth: With Flow’s expanding ecosystem in gaming, DeFi, and NFTs, Band Protocol’s customizable data feeds empower developers to lead the next wave of Web3 innovation.

The Crescendo upgrade strengthens Flow’s infrastructure and enhances EVM compatibility, offering a unique opportunity to leverage Band Protocol’s enhanced data accessibility and cross-chain interoperability. In short, this upgrade allows developers to seamlessly deploy any Ethereum app to Flow without contract code changes.

How It Works on Flow

For developers building on Flow Crescendo, understanding the architecture of this integration is essential. By deploying the Band Standard Reference Contract on Flow, developers can seamlessly incorporate real-world data into their dApps, accessing reliable and validated data from multiple blockchains. The following diagram illustrates how Band Oracle functions on Flow:

High-Level Technical Overview: How Band Works on Flow Crescendo
  1. Access External Data Sources (Exchanges, Markets): Band Oracle pulls data from multiple external sources such as exchanges like CoinMarketCap, CoinGecko, Binance, and other market data providers, ensuring comprehensive and diverse data coverage for Flow applications.
  2. Aggregate & Apply Security Measures (Consensus Mechanisms): The collected data is then aggregated and subjected to security measures using BandChain’s consensus mechanisms. This step ensures that the data is accurate and reliable before relaying further.
  3. Securely Relay Data: The verified data is then securely relayed to Band Standard Reference Contracts on Flow, ensuring the data maintains its integrity throughout the process.
  4. Read Symbol (e.g., BTC/USD, ETH/USD): Flow dApps can access specific symbols or data points, like BTC/USD or ETH/USD from Band Standard Reference Contracts, allowing for real-time and reliable data retrieval for various applications.
  5. Send Price Data Back to dApp: The requested data is then sent back to the requesting Flow dApp, enabling real-time pricing, automated trading, or other data-driven processes.
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Key Takeaway:
This comprehensive integration process enables dApps on Flow Crescendo to access secure, reliable, and real-time data feeds from Band Oracle. This integration not only enhances the functionality of these dApps but also significantly boosts their performance, empowering developers to build more sophisticated and data-driven applications on Flow.

What Band Price Feed Brings to Flow in This Integration

With Band Protocol’s price feeds, Flow developers gain access to a wealth of reliable, aggregated data that is securely validated on-chain. Key benefits of this integration include:

  • Trustworthy Data: BandChain aggregates data from multiple sources, which is then validated on-chain by a decentralized network of validators, ensuring both accuracy and reliability.
  • Customizable Feeds: Developers have the flexibility to define and tailor data feeds to meet the specific needs of their applications, allowing for greater adaptability in data usage..
  • Security and Decentralization: Band Protocol utilizes a delegated proof-of-stake (dPoS) consensus mechanism, ensuring secure and decentralized data validation, which minimizes the risk of a single point of failure.
  • Scalability and Performance: BandChain offloads heavy data computations, enabling efficient, flexible, and scalable data querying, all secured through cryptographic proofs.

Let’s Start Building!

We invite developers to fully leverage this powerful integration. Whether you’re building DeFi protocols, gaming dApps, NFTs, or any other innovative project, Band Protocol’s data oracle is here to elevate your creations on Flow. The possibilities are endless, and we’re excited to see what you’ll build. Check out the resource below to jump-start your journey with Band Oracle!

Tools and resources for integration and utilization of Band Oracle on Flow Crescendo

import interfaces/IStdReference.sol;

contract DemoBulk {
    IStdReference public ref;

    constructor(IStdReference _ref) public {
        ref = _ref;
    }

    function demo_bulk() external view returns (IStdReference.ReferenceData[] memory) {
        return ref.getReferenceDataBulk(["BTC", "ETH"], ["USD", "BTC"]);
    }
}

Solidity Code: Query the price of BTC/USD and ETH/BTC

Useful resources for using Band Price Feed on Flow Crescendo

Join the Community

Become a part of the conversation and stay updated on all the latest developments! Join our growing community to connect with fellow developers, exchange ideas, and receive support directly from the Band Protocol and Flow teams. We’re active on Discord, Telegram, and Twitter—let’s collaborate and build the future of Web3 together!

Band Protocol

Flow

Wrapping Up!

The Crescendo upgrade is a landmark moment for Flow, and Band Protocol is proud to be a key partner in this evolution. Together, we’re unlocking new possibilities for developers and users alike, driving innovation, and expanding the horizons of what’s possible in the Web3 space.

Looking ahead, we’re planning further enhancements that will continue to elevate Flow’s capabilities with Band Protocol’s Oracle solutions. Future updates will focus on expanding the range of data services available, enhancing security, and supporting even more complex use cases. We’re just getting started on this journey to shape the future of decentralized applications—stay tuned as we work towards a more interconnected and data-rich Web3 ecosystem!

About Flow

Flow is a fast, decentralized, and developer-friendly blockchain designed to be the foundation for a new generation of games, apps, and digital assets that power them. It is based on a unique, multi-role architecture, and designed to scale without sharding, allowing for massive improvements in speed and throughput while preserving a developer-friendly, ACID-compliant environment.

More about Flow: Website Twitter Instagram YouTube Telegram Discord

About Band Protocol

Band Protocol is a cross-chain data oracle platform with the aspiration to build high-quality suites of web3 development products. The flagship Oracle solution aggregates and connects real-world data and APIs to smart contracts, enabling smart contract applications such as DeFi, prediction markets, and games to be built on-chain without relying on the single point of failure of a centralized oracle.

More about Band Protocol: Linktree

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