LiquidApps Documentation
  • Introduction
  • 🧙‍♂️The DAPP Network
    • The DAPP Token
      • DAPP Token Overview
      • DAPP Tokens Tracks
      • Claiming DAPP Tokens
      • DAPP Tokens Distribution
      • Air-HODL
    • Cross Chain Bridges
    • Examples
      • Token bridge
      • Price Feed
      • Elemental Battles
      • LiquidChess
      • LiquidPortfolio
    • DAPP Network Resources
      • @liquidapps/dapp-client
        • vRAM
        • LiquidAccounts
        • DAPP Services
        • Air-Hodl
      • eosio-push-guarantee
      • Link Library
        • EOSIO Link
          • Tables
          • Crons
          • Macros
          • Variables
        • EVM Link - Solidity (Coming Soon)
  • ⚡Working with Zeus
    • Introduction
      • Requirements
      • Install Zeus and Unboxing
        • More on zeus-box.json
      • Get Started fast! (Zeus-IDE)
      • Docker CI/CD
      • Example Github Using Zeus
      • Getting started with AntelopeIO Contracts (formerly EOSIO)
    • Zeus Basics
      • Compiling Contracts
        • Clean CMake Files
      • Unit Testing
        • Printing Console
        • Fetching Table
        • Helper Functions
        • Example
      • Create ...
        • Contract/Unit Test
          • All DAPP Network Services
        • DSP Service
        • Contract Deployment
      • Import/Export Keys
      • Migrate Contract
      • Start local environment
        • Kill Services
      • Upgrade
      • Zeus RC File
      • Zeus Config File
    • Zeus Box Basics
      • Zeus Boxes Directory
        • Services
          • Oracles
        • Sample Boxes
        • Other Boxes
          • DAPP Network
          • SDKs
            • ETH-SDK
            • EOS SDK
          • Frontends
          • Extensions
          • Tests
          • Seeds
          • Microservices
          • Meta Boxes
          • Libraries
          • Game
          • EOS Framework
          • Economics
          • Templates
      • Add/Remove
      • Deploy
      • List Boxes
  • ⚙️DAPP Network Services
    • DAPP Network Services
      • vRAM
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic implementation
        • Smart Contract Macros
          • dapp::multi_index
        • Tools
          • DAPP Client Integration
            • get_vram_row
          • Zeus Commands
          • Scripts
            • Get table
            • Get ordered keys
        • Additional Features
          • Save load and reset dapp::multi_index data
          • Advanced Features
      • LiquidAccounts
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
            • DAPP Client
          • Basic Implementation
          • DAPP Account
        • Smart Contract Macros
          • payload
          • VACCOUNTS_APPLY
          • require_vaccount
          • VACCOUNTS_DELAYED_CLEANUP
        • Tools
          • DAPP Client Integration
            • push_liquid_account_transaction
          • Zeus Commands
            • Zeus vaccounts push-action
          • Scripts
            • Deserialize Payload
        • Use between contracts
        • Use Between Chains
      • LiquidHarmony
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
          • API DSP Key Storage
        • Smart Contract Macros
          • geturi
          • ORACLE_HOOK_FILTER
        • Creating an Oracle Request
          • HTTP/HTTPS GET/POST JSON
            • HTTP/HTTPS GET
            • HTTP/HTTPS GET JSON
            • HTTP/HTTPS POST
            • HTTP/HTTPS POST JSON
          • ECHO GET/POST JSON
            • ECHO GET
            • ECHO GET JSON
            • ECHO POST
            • ECHO POST JSON
          • Nodeos History Get
          • Sister Chain Fetch
            • sister_chain_block
            • sister_chain_history
            • sister_chain_info
            • sister_chain_last_irreversible
            • sister_chain_table_row
          • Foreign Chain Fetch
            • ethereum
              • endpoints
              • block_number
              • history
              • balance
              • storage
            • tron
              • endpoints
              • balance
              • block_number
              • block
              • transactions
              • transaction
            • cardano
              • endpoints
              • blocks
              • history
              • state
            • ripple
              • endpoints
              • balance
              • ledger
              • transactions
            • bitcoin
              • endpoints
              • balance
              • block
              • history
              • transaction
            • litecoin
              • endpoints
              • balance
              • block
              • history
              • transaction
            • bitcoin cash
              • endpoints
              • balance
              • block
              • history
              • transaction
          • Wolfram Alpha
          • Random Number
          • Stockfish
          • SQL
        • Additional Features
          • Pre geturi hook
          • Don't spend CPU condition
      • LiquidScheduler
        • Getting Started Guide
          • Compile and Deploy
          • Staking for Services
          • Basic Implementation
        • Smart Contract Macros
          • schedule_timer
          • remove_timer
          • timer_callback
          • start_interval
          • remove_interval
        • Additional Features
          • Don't spend CPU condition
      • LiquidStorage
        • Getting Started Guide
          • Compile and Deploy
          • Staking for Services
          • Test
          • Basic Implementation
        • Tools
          • Zeus Commands
            • zeus storage upload
            • zeus storage unpin
          • DAPP Client Integration
            • get_uri
            • unpin_public_file
            • upload_archive_to_liquidstorage
            • upload_file_to_liquidstorage
            • upload_public_file_from_vaccount
        • Example GET Static Web Page
      • LiquidLink
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
        • Smart Contract Macros
          • svc_sign_signtrx
      • LiquidAuth
        • Getting Started Guide
          • Compile and Deploy
          • Staking for services
          • Test
          • Basic Implementation
        • Tools
          • DAPP Client Integration
            • invokeAuthedCall
      • DAPP Service Macros
        • CONTRACT_START
        • CONTRACT_END
        • DAPPSERVICES_ACTIONS
        • DAPPSERVICE_ACTIONS_COMMANDS
      • Additional Services
      • Smart Contract Console Log Syntax
      • Using on_notify with services
    • Packages and Staking
  • 👨‍🚀DAPP Service Providers
    • Introduction to DAPP Service Providers
    • DSPs
      • Architecture Overview
      • Setup DSP
        • Blockchain Account
        • EOSIO Node
          • Firehose Setup
        • IPFS
          • Adding peers
            • Reconnecting Peers Periodically
          • Bootsrapping from an existing IPFS Cluster
          • Running a private network
        • PostgreSQL Database Backend
          • How to wipe local database
        • Ethereum Virtual Machine Node Setup
        • DSP Node
          • Logs
            • Monitor all logs script
        • Register Package
          • Modify Package metadata
          • Enable/Disable Package
          • Update cost per action in QUOTA
          • More on Packages
          • Whitelist Stakers
        • Test Setup
        • Known attack vectors
      • DSP Maintenance
        • Upgrade DSP Node
        • Claim Rewards
        • Replay Contract
        • Cleanup IPFS and Oracle Entries
        • Consumer Pays CPU Permissions
      • DSP API Endpoints
        • Event
        • Version
        • vRAM
        • LiquidLink
        • LiquidStorage
        • LiquidAccounts
  • 👨‍💻DAPP NETWORK LABS
    • Introduction
    • DAPP Workers
    • EdgeDSPs
    • EdgeOS
  • 🌉CROSS CHAIN BRIDGES
    • Getting Started with LiquidBridge
      • EOSIO.token <> EOSIO.token Fungible Tokens
      • EOSIO.token <> ERC20 Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup EVM Contracts
            • Setup EVM Token Contract
              • Initialize Token and Transfer Ownership
            • Setup EVM Tokenpeg Contract
            • Verify and Publish Source Code
              • token contract and overview
              • tokenpeg contract
        • Initialize EOSIO Side
        • Test bridge
      • EOSIO <> EOSIO Atomic Assets Non-Fungible Tokens
      • EOSIO Atomic Assets <> ERC721 Non-Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup EVM ERC721 Contract
          • Setup EVM Atomictokenpeg Contract
          • Transfer Ownership
          • Verify Source Code
        • Initialize EOSIO Side
        • Test bridge
      • EOSIO Atomic Assets <> ERC1155 Non-Fungible Tokens
        • EOSIO Side Setup
        • EVM Side Setup
          • Setup Proxy Contract
          • Setup EVM ERC1155 Contract
          • Setup EVM ERC1155 Tradeable Contract
          • Transfer Ownership of ERC1155 contract to atomictokenpeg1155 contract
        • Initialize EOSIO Side
        • Test bridge
  • ⛓️LiquidX Stake Across Chains
    • Getting Started with LiquidX
      • Use DAPP Network Services
        • Smart Contract Steps
        • Add DSP on New Chain
        • Map Mainnet to New Chain
        • Map New Chain to Mainnet
      • Become a DSP on another chain
        • Editing config.toml file
        • Push DSP account mapping action
      • Example Chains to Add
        • CoVax
        • WAX
        • WAX Test
        • Telos
        • Telos Test
        • BOS
      • Add a Chain to LiquidX
        • Create accounts and set dappservicex contract
        • Register chain
  • 😷COVAX
    • Getting Started with CoVax Chain
      • Become a DAPP Service Provider
      • Become a Block Producer
  • 🗂️Blockchain Guides
    • Testnet Creation Guides
      • Create Binance Smart Chain Testnet Account
        • Add Binance Smart Chain Testnet Network to Metamask
        • Create EVM keypair
        • Get faucet funds
      • Create WAX Testnet Account
      • Creating Jungle 3 account
      • Create Mumbai Testnet Account (Matic-Polygon)
        • Get faucet funds
      • Creating CryptoKylin Account
      • Create Rinkeby Testnet Account
        • Change Metamask network to Rinkeby
        • Get faucet funds
    • Governance Guides
      • How to submit a proposal
      • How the Proposal System Works
      • Governance Rewards
      • How to Propose an MSIG
      • Update dappservices contract by msig
      • Setup MSIG Telegram Bot
      • Governance Contracts
      • Governance Frontend
      • Propose Payment by Msig
  • 🗒️Release Notes
    • Latest
    • History
      • 2.0.8191
      • 2.0.7966
      • 2.0.7931
      • 2.1.7848
      • 2.0.7735
      • 2.0.7661
      • 2.0.7644
      • 2.0.7622
      • 2.1.7420
      • 2.1.7301
      • 2.1.7111
      • 2.0.6808
      • 2.0.5328
      • 2.0.4719
      • 2.0.4002
      • 2.0.3107
      • 2.0.2812
      • 2.0.2527
  • 🙋‍♀️FAQs
    • Frequently Asked Questions The DAPP Token
    • Frequently Asked Questions DAPP Service Providers (DSPs)
    • Frequently Asked Questions vRAM
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On this page
  • EOSIO Link
  • EVM Link - Solidity

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  1. The DAPP Network
  2. DAPP Network Resources

Link Library

Previouseosio-push-guaranteeNextEOSIO Link

Last updated 3 years ago

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The link library is a cross chain bi-directional authenticated message channel where any message can be sent/received between supported chains. This allows the developer a low of flexibility in what it is they want to transfer. Examples could be: voting, nft / token bridges, cross chain staking, cross chain arbitrage, etc.

The library is split into 2 files:

  • link.hpp

  • link.sol

To explore the library you can try unboxing it and running the unit tests:

mdkir link; cd link
zeus box create
zeus unbox link
zeus test -c

Explore each file here:

EOSIO Link

EVM Link - Solidity

🧙‍♂️
link
EOSIO Link
EVM Link - Solidity (Coming Soon)