public IObservable <Transaction> GetPendingTransactions() => ObservableExtensions
.Using(
async() => new DisposableFilter(await _filterService.NewPendingTransactionFilter.SendRequestAsync().ConfigureAwait(false), _filterService.UninstallFilter),
filter => Observable
.FromAsync(ct => _filterService.GetFilterChangesForBlockOrTransaction.SendRequestAsync(filter.ID))
.SelectMany(transactionHashes => transactionHashes
.Select(hash => Observable.FromAsync(ct => _transactionsService.GetTransactionByHash.SendRequestAsync(hash)))
.ToObservable())
.SelectMany(x => x)
.Poll(_poller))
.Publish()
.RefCount();
private IObservable <TBlock> GetBlocks <TBlock>(Func <string, object, Task <TBlock> > blockProvider) where TBlock : Block => ObservableExtensions
.Using(
async() => new DisposableFilter(await FilterService.NewBlockFilter.SendRequestAsync(), FilterService.UninstallFilter),
filter => Observable
.FromAsync(ct => FilterService.GetFilterChangesForBlockOrTransaction.SendRequestAsync(filter.ID))
.SelectMany(blockHashes => blockHashes
.Select(hash => Observable.FromAsync(ct => blockProvider(hash, null)))
.ToObservable())
.SelectMany(x => x)
.Poll(Poller))
.Publish()
.RefCount();
