in src/auth/AuthorizationCodeWithPKCEStrategy.ts [75:85]
private async verifyAndExchangeCode(code: string) {
const cachedItem = await this.cache.get<CachedVerifier>("spotify-sdk:verifier");
const verifier = cachedItem?.verifier;
if (!verifier) {
throw new Error("No verifier found in cache - can't validate query string callback parameters.");
}
await this.configuration!.redirectionStrategy.onReturnFromRedirect();
return await this.exchangeCodeForToken(code, verifier!);
}