47 lines
1.1 KiB
TypeScript
47 lines
1.1 KiB
TypeScript
import { SiweMessage } from 'siwe';
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import { PKPEthersWallet } from '@lit-protocol/pkp-ethers';
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import { v4 as uuid } from 'uuid';
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const domain = window.location.host;
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const origin = window.location.origin;
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export async function signInWithEthereum(
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chainId: number,
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action: 'signup' | 'login',
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wallet: PKPEthersWallet,
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) {
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const message = await createSiweMessage(
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chainId,
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await wallet.getAddress(),
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'Sign in with Ethereum to the app.',
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);
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const signature = await wallet.signMessage(message);
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const res = await fetch(`${import.meta.env.VITE_SERVER_URL}/auth/validate`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ action, message, signature }),
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credentials: 'include',
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});
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return (await res.json()) as { success: boolean; error?: string };
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}
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async function createSiweMessage(
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chainId: number,
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address: string,
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statement: string,
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) {
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const message = new SiweMessage({
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domain,
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address,
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statement,
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uri: origin,
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version: '1',
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chainId,
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nonce: uuid().replace(/[^a-z0-9]/g, ''),
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});
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return message.prepareMessage();
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}
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