# isSupported method

1. @override

Future <bool> isSupported()
override

Returns true if the XEP is supported on the server. If not, returns false

## Implementation

    @override
    Future<bool> isSupported() async {
      if (_gotSupported) return _supported;

      final result = await getAttributes()
          .getManagerById<DiscoManager>(discoManager)!
          .performDiscoSweep();
      if (result.isType<DiscoError>()) {
        _gotSupported = false;
        _supported = false;
        return false;
      }

      final infos = result.get<List<DiscoInfo>>();
      _gotSupported = true;
      for (final info in infos) {
        if (_containsFileUploadIdentity(info) &&
            info.features.contains(httpFileUploadXmlns)) {
          logger.info('Discovered HTTP File Upload for ${info.jid}');

          _entityJid = info.jid;
          _maxUploadSize = _getMaxFileSize(info);
          _supported = true;
          break;
        }
      }

      return _supported;
    }