Function generateCodeVerifier

generateCodeVerifier(): string
Generate a random PKCE code verifier (43+ characters, base64url-encoded).

Uses the Web Crypto API (globalThis.crypto), compatible with Node 18+ and modern browsers.

Returns string
A cryptographically random code verifier string
Example
```
import { generateCodeVerifier, generateCodeChallenge } from 'soundcloud-api-ts';

const verifier = generateCodeVerifier();
const challenge = await generateCodeChallenge(verifier);
// Use `challenge` in getAuthorizationUrl, then `verifier` in getUserToken
```
See
https://datatracker.ietf.org/doc/html/rfc7636
- Defined in src/auth/pkce.ts:19