How to Standardize Solana Addresses for Consistency in JavaScript/TypeScript?

Question

I'm working with Solana addresses in a TypeScript project and need to ensure consistency in their representation, similar to Ethereum's toChecksumAddress (https://docs.web3js.org/api/web3-utils/function/toChecksumAddress/).

An example is:

      import { PublicKey } from '@solana/web3.js';

      const key = new PublicKey("2wicZ7QPvUn1RNUHVUsdf8xAH22RBkiXEkGS43RDboJ4");
      const key2 = new PublicKey("2wicz7qpvun1rnuhvusdf8xah22rbkixekgs43rdboj4"); // lowercase

      const keyInfo = await this.connection.getAccountInfo(key); // returns data
      const keyInfo2 = await this.connection.getAccountInfo(key2); // returns null

Is there a recommended approach or library for achieving this in JavaScript/TypeScript? Any insights or code examples would be appreciated. Thanks!

Answer 1

Simply using the PublicKey class is the best way to go. You can use simple base58 string representation of your public key in most places, however wrapping it in PublicKey class is the best way to go, which you have done in the example code snippet you have provided. I wouldn't worry about anything else really, you're good to go.