30 lines
1.1 KiB
TypeScript
30 lines
1.1 KiB
TypeScript
import type { EIP1193Provider } from './EthereumProviderTypes';
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// code from https://docs.metamask.io/wallet/how-to/sign-data/#use-personal_sign
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export const signMessage = async (provider: EIP1193Provider,userAccount: string) => {
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try {
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// For historical reasons, you must submit the message to sign in hex-encoded UTF-8.
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// This uses a Node.js-style buffer shim in the browser.
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const publicKey = await provider.request({
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method: 'eth_getEncryptionPublicKey',
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params: [userAccount],
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})
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// const bytes = new TextEncoder().encode(String(publicKey));
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// const msg = '0x' + Array.from(bytes).map(b => b.toString(16).padStart(2, '0')).join('');
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const msg = `0x${Buffer.from(String(publicKey), "utf8").toString("hex")}`
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const sign = await provider.request({
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method: "personal_sign",
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params: [msg, userAccount],
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})
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console.log("Encoded Public Key: ", msg);
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return { publicKey, sign };
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} catch (err) {
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console.error(err)
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}
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}
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