[Flutter]Apple OAuth invalid_client 오류
final accessToken = (await requestAppleTokens( authCode, clientSecret, clientId, ))['access_token'] as String; const String tokenTypeHint = 'access_token'; //Apple OAuth 토큰 요청Future> requestAppleTokens( String authorizationCode, String clientSecret, String clientId,) async { final response = await http.post( Uri.parse('https://appleid.apple.com/auth/token'), he..