/// <summary>
/// Retrieves detailed information regarding a Topic Instance.
/// </summary>
/// <param name="topic">
/// The Hedera Network Address of the Topic instance to retrieve.
/// </param>
/// <param name="configure">
/// Optional callback method providing an opportunity to modify
/// the execution configuration for just this method call.
/// It is executed prior to submitting the request to the network.
/// </param>
/// <returns>
/// A detailed description of the contract instance.
/// </returns>
/// <exception cref="ArgumentOutOfRangeException">If required arguments are missing.</exception>
/// <exception cref="InvalidOperationException">If required context configuration is missing.</exception>
/// <exception cref="PrecheckException">If the gateway node create rejected the request upon submission.</exception>
public async Task <TopicInfo> GetTopicInfoAsync(Address topic, Action <IContext>?configure = null)
{
topic = RequireInputParameter.Topic(topic);
await using var context = CreateChildContext(configure);
var query = new Query
{
ConsensusGetTopicInfo = new ConsensusGetTopicInfoQuery
{
Header = Transactions.CreateAskCostHeader(),
TopicID = Protobuf.ToTopicID(topic)
}
};
var response = await Transactions.ExecuteUnsignedAskRequestWithRetryAsync(context, query, getRequestMethod, getResponseHeader);
long cost = (long)response.ConsensusGetTopicInfo.Header.Cost;
if (cost > 0)
{
var transactionId = Transactions.GetOrCreateTransactionID(context);
query.ConsensusGetTopicInfo.Header = await Transactions.CreateAndSignQueryHeaderAsync(context, cost, transactionId);
response = await Transactions.ExecuteSignedRequestWithRetryAsync(context, query, getRequestMethod, getResponseHeader);
ValidateResult.ResponseHeader(transactionId, getResponseHeader(response));
}
return(Protobuf.FromTopicInfo(response.ConsensusGetTopicInfo.TopicInfo));