deBridge
  • Introduction
  • The deBridge Messaging Protocol
    • Protocol Overview
    • Fees and Supported Chains
    • 🟢Deployed Contracts
    • Development Guides
      • Building an EVM-based dApp
        • EVM smart contract interfaces
          • Interfaces
            • ICallProxy
            • IDeBridgeGate
            • IDeBridgeToken
            • IDeBridgeTokenDeployer
            • IOraclesManager
            • ISignatureVerifier
            • IWethGate
          • Libraries
            • Flags
          • Periphery
            • CallProxy
            • DeBridgeToken
            • DeBridgeTokenProxy
            • SimpleFeeProxy
          • Transfers
            • DeBridgeGate
            • DeBridgeTokenDeployer
            • OraclesManager
            • SignatureVerifier
            • WethGate
      • Sending cross-chain messages from Solana
        • On-Chain external call preparation for Solana
        • Off-chain external call preparation for Solana
      • Lifecycle of a cross-chain call
      • Gathering data for the claim
    • Development Tools
    • Security
    • Slashing and Delegated Staking
  • 🔁DLN: The deBridge Liquidity Network Protocol
    • Introduction
    • Protocol Overview
    • deBridge Hooks
    • Fees and Supported Chains
    • 🟢Deployed Contracts
    • Market and Limit Orders
    • Integration Guidelines
      • Interacting with the API
        • Authentication
        • Creating an Order
          • Quick Start
          • Reserve Assets
          • Bridging Reserve Assets
          • Bridging non-reserve assets
          • API Parameters
            • Estimation-Only
            • prependOperatingExpenses
          • API Response
            • JSON Example
          • Refreshing Estimates
          • Fees and operating expenses
          • Order Fulfillment
            • Detecting the Order
            • Fulfilling the Order
              • Pre-Fill-Swap
            • Claiming the Order
        • Tracking Order Status
          • Order States
        • Integrating deBridge hooks
          • Creating Hook data for Solana
        • Submitting an Order Creation Transaction
        • Cancelling the Order
        • Affiliate fees
      • deBridge Widget
      • Interacting with smart contracts
        • Placing orders
        • Filling orders
        • Withdrawing Affiliate Fees
    • Interacting with the deBridge App
      • Custom Linking
    • Protocol specs
      • Deterministic order ID
      • Hook data
        • Anatomy of a Hook for the EVM-based chains
        • Anatomy of a Hook for Solana
  • 💸dePort
    • Getting started
    • Transfers Flow
  • ⚡deBridge Points
    • Referrers Overview
    • Integrators Overview
  • 🌐deBridge IaaS
    • Getting started
  • 🌐Legal
    • SDK & API License Agreement
  • External Links
    • deBridge Use Cases
      • 💡Examples
    • Talks, Videos, and Articles
    • Website
    • Github
    • Twitter
    • Social channels
      • Discord
      • Facebook
      • LinkedIn
      • Medium
      • Telegram
      • YouTube
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  1. DLN: The deBridge Liquidity Network Protocol
  2. Integration Guidelines

Interacting with smart contracts

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Last updated 22 hours ago

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The deBridge Liquidity Network Protocol is an on-chain system of smart contracts where users place their cross-chain limit orders, giving a specific amount of input token on the source chain (giveAmount of the giveToken on the giveChain) and specifying the outcome they are willing to take on the destination chain (takeAmount of the takeToken on the takeChain).

The given amount is being locked by the DlnSource smart contract on the source chain and anyone with enough liquidity (called Solvers) can attempt to fulfill the order by calling the DlnDestination smart contract on the destination chain supplying the requested amount of tokens the user is willing to take. After the order is fulfilled, the supplied amount is immediately transferred to the recipient specified by the user, and a cross-chain message is sent to the source chain via the deBridge infrastructure to unlock the funds, effectively completing the order.Getting ready to make on-chain calls

The DLN Protocol consists of two contracts: the DlnSource contract responsible for order placement, and the DlnDestination contract responsible for order fulfillment.

Currently, both contracts are deployed on the effectively allowing anyone to place orders in any direction. Contract addresses and ABIs can be found here:

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supported blockchains
Trusted Smart Contracts