@xessential/signer v0.0.1-beta.11
@nfight/signer
@nfight/signer offers an ethers-based Signer
for implementing nFight's meta-transaction stack in your dapp.
Features
Provide an EssentialSigner
to an ethers Contract
or wagmi contract hook and user transactions will seamlessly become meta-transactions.
Cross-chain NFT auth: pass an NFT's
chainId
,contractAddress
andtokenId
toContract
calls - CCTG authorizes ownership and forwards this data to your L2 contract for building cross-chain experiences without bridging.Network Agnostic UX:
EssentialSigner
lets users sign meta-transactions with their Ethereum wallet from any network - no network switching or L2 gas tokens needed.Burner Wallets: nFight supports localized on-chain delegation for NFT auth. Pass a burner
Wallet
toEssentialSigner
so users sign meta-transactions without a popup, while your L2 contract receives the primary address as the_msgSender()
.Simple Integration:
EssentialSigner
is based on ethers, written in typescript and can be used in testing environments like hardhat.
Installation
The package is available via NPM:
yarn install @nfight/signer
Usage
The SDK expects you to set some ENV vars in your dApp's environment:
NFIGHT_CHAIN_ID
The chain ID value for the chain where your implementation contract lives. 0xEssential currently supports Polygon's Mumbai testnet (80001) and Matic mainnet (137).
NFIGHT_RELAYER_URI
The SDK will handle submitting meta-transaction requests to your relayer. To do so the SDK needs to know the URI of the relaying service. This can be a fully qualified URL or a relative path.
nFight provides an OpenZeppelin Defender autotask that can be used as your relayer, but we recommend proxying the call to your autotask webhook to keep the URL secret.
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