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Retrieving a Wallet's Public Key in a Browser

To retrieve the public key of a wallet in a browser, use the getPublicKey() method provided by the OP_WALLET extension.

Learn about Unified Accounts

Click here to learn more about Unified Accounts and how they work in the OP_NET ecosystem.

Step 1: Accessing the Wallet Instance​

First, verify the availability of a wallet instance. For OP_WALLET, you can access the wallet instance using the following code:

import { Unisat } from "@btc-vision/transaction";

export interface CustomWindow {
  opnet?: Unisat;
}

const _window: CustomWindow = window as CustomWindow;
const opnet: Unisat | undefined = _window.opnet;
Detailed Guide

Learn more about Interacting with a Browser Wallet that Directly Supports OP_NET for detailed information on accessing wallet instances.

Step 2: Fetching the Public Key​

Once you have access to the wallet instance, call the getPublicKey() method:

const publicKey = await opnet.getPublicKey();
console.log("Public Key:", publicKey);

Best Practices​

  • Always ensure the wallet instance (e.g., window.opnet) is available before calling wallet methods.
  • Never expose private keys or other sensitive wallet data in your application code or logs.
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