Function applyBasicAuth

src/client/auth.ts:342–349

* Applies HTTP Basic authentication (RFC 6749 Section 2.3.1)

(clientId: string, clientSecret: string | undefined, headers: Headers)

 * Applies HTTP Basic authentication (RFC 6749 Section 2.3.1)
 */
function applyBasicAuth(clientId: string, clientSecret: string | undefined, headers: Headers): void {
    if (!clientSecret) {
        throw new Error('client_secret_basic authentication requires a client_secret');
    }

    const credentials = btoa(`${clientId}:${clientSecret}`);
    headers.set('Authorization', `Basic ${credentials}`);
}

/**
 * Applies POST body authentication (RFC 6749 Section 2.3.1)