getSingleNip51RelaySet method

Future<Nip51Set?> getSingleNip51RelaySet(String name, EventSigner signer, { bool forceRefresh = false, })

return single nip51 set that match given name

Implementation

Future<Nip51Set?> getSingleNip51RelaySet(
  String name,
  EventSigner signer, {
  bool forceRefresh = false,
}) async {
  Nip51Set? relaySet = await _getCachedNip51RelaySet(name, signer);
  if (relaySet == null || forceRefresh) {
    Nip51Set? newRelaySet;
    await for (final event in _requests.query(filters: [
      Filter(
        authors: [signer.getPublicKey()],
        kinds: [Nip51List.RELAY_SET],
        dTags: [name],
      )
    ], cacheRead: !forceRefresh).stream) {
      if (newRelaySet == null || newRelaySet.createdAt < event.createdAt) {
        if (event.getDtag() != null && event.getDtag() == name) {
          newRelaySet = await Nip51Set.fromEvent(event, signer);
          await _cacheManager.saveEvent(event);
        } else if (Helpers.isNotBlank(event.content)) {
          Nip51Set? decryptedRelaySet =
              await Nip51Set.fromEvent(event, signer);
          if (decryptedRelaySet != null && decryptedRelaySet.name == name) {
            newRelaySet = decryptedRelaySet;
            await _cacheManager.saveEvent(event);
          }
        }
      }
    }
    return newRelaySet;
  }
  return relaySet;
}