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EVM-XCM Jungle Toolkit
  • 📗Introduction
    • 🌴What is the EVM-XCM Jungle Toolkit?
    • 🧐Why use this toolkit?
    • 👪Who is this toolkit made for?
    • ⚒️What tools are this toolkit made of?
  • ↔️Build an EVM+Substrate wallet compatible architecture in your dApp
    • ⁉️Two different standards
      • ℹ️Addresses Format
      • 🎭Public Key vs Hash-based
      • 📩Multichain compatibility
      • ⚡Account Types
    • ☑️Recommended wallets
      • 🦊MetaMask
      • ☸️SubWallet
      • 🤚Talisman
    • 🟢The EVM address standard
      • 🔏Get an address for a Signer
        • 👁️Check the validity of the address
      • 💰Get the native balance of a Signer
        • Get an ERC20 token's balance
      • 🎇Get the chain information for a Signer
    • 🔵The Substrate address standard
      • 🔏Get an address for a Signer
        • 👁️Check the validity of the address
      • 💰Get the native balance of a Signer
      • 🎇Get the chain information for a Signer
    • 📧Mapping of addresses
    • 🤝Implement multiple wallet support on your dApp front-end
      • 💚Understanding the EVM provider/signer concepts
      • ❤️Understanding the Keyring concept
      • 🔑Sign and send EVM transactions
      • 🗝️Sign and send Substrate extrinsics
    • 📚Ressources
  • ➡️Build a cross-chain transaction from any EVM-chain to a Substrate-based chain using IBC and XCM
    • ⁉️Understanding the flow
    • 🦑Transfer tokens to Moonbeam Parachain using Squid SDK from any EVM chain
    • 🪝Create & execute a transaction on the source chain before bridging tokens (pre-hook)
    • 🪝Create & execute a transaction on Moonbeam after bridging tokens (post-hook)
    • ✨Create & execute a swap using Stellaswap pools to obtain xcTokens
    • 🙌Wrap-up
    • 📚Ressources
  • ⬅️Build a cross-chain transaction from a Substrate-based chain to Moonbeam chain
    • ⁉️Understanding the flow
    • 💡Using LightSpell API to generate valid XCM calls
    • 🌉Transfer tokens between parachains (or relay chain) using XCM and ParaSpell SDK
    • 🙌Wrap up
    • 📚Ressources
  • ⏩Build batches on source and destination chains using Squid and batch precompile
    • ⁉️Understanding the flow
    • 👌Understanding the batch precompile
    • ✅Create a batch transaction compatible with Squid router
    • 🪝Integrate a batch into a Hook using Squid
    • 🙌Wrap up
    • 📚Ressources
  • 🔁Build a gas-less transaction from/to an EVM/Substrate chain using callPermit
    • ⁉️Understanding the flow
    • 🔋Generating the data to sign
    • ✍️Collecting the signature
    • 🌐Relaying the signature
    • ⚡Executing the transaction
    • 🙌Wrap up
    • 📚Ressources
  • 🔀Build a custodial solution to make your dApp wallet-less & gas-less using EIP-712
    • ⁉️Understanding the flow
    • ⛓️Smart contract
    • ⚙️Back end
  • 🔽Examples of working cross-chain dApps made using the Jungle Toolkit
    • 🌴Case Study: The Great Escape
      • The Player Structure
      • The xDeposit Function
      • The xRegister Function
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🔁Build a gas-less transaction from/to an EVM/Substrate chain using callPermit

How to implement gas-less transaction using the callPermit precompile and the EIP-712 standard

Last updated 11 months ago

⁉️Understanding the flow
🔋Generating the data to sign
✍️Collecting the signature
🌐Relaying the signature
⚡Executing the transaction
🙌Wrap up
📚Ressources