@web3auth/base-provider

@web3auth/ethereum-provider

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Introduction:-

This package exposes a class EthereumPrivateKeyProvider, which accepts a secp251k1 private key and returns EIP1193 compatible provider, which can be used with various wallet sdks. For ex: CustomAuth and Openlogin sdk by torus.

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Usage:-

Using Provider

import { EthereumPrivateKeyProvider } from "@web3auth/ethereum-provider";
import type { SafeEventEmitterProvider } from "@web3auth/base";
const signEthMessage = async (provider: SafeEventEmitterProvider): Promise<string> => {
  const web3 = new Web3(provider as any);
  const accounts = await web3.eth.getAccounts();
  // hex message
  const message = "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad";
  const signature = await web3.eth.sign(message, accounts[0]);
  return signature;
};

(async () => {
  const provider = await EthereumPrivateKeyProvider.getProviderInstance({
    chainConfig: {
      rpcTarget: "https://polygon-rpc.com",
      chainId: "0x89", // hex chain id
      networkName: "matic",
      ticker: "matic",
      tickerName: "matic",
    },
    privKey: "4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318",
  });
  const signedMessage = await signEthMessage(provider);
})();