getChannel method
Implementation
ClientChannel getChannel(String operator) {
final ledger = _ledgers.firstWhere(
(it) => it.id.toLowerCase() == operator.toLowerCase(),
orElse: () => throw ArgumentError(
'No ledger matching ID $operator\n'
'Ledgers: ${_ledgers.map((it) => it.asMap())}',
),
);
return ClientChannel(
ledger.host,
options: ChannelOptions(credentials: _credentials),
);
}