private async Task <bool> CheckIfLedgerExistsAsync()
{
Console.WriteLine("Checking if ledger exists.");
ListLedgersResponse response = await qldbClient.ListLedgersAsync(new ListLedgersRequest());
return(response.Ledgers != null && response.Ledgers.Any(x => x.Name == LedgerName));
}
/// <summary>
/// Unmarshaller the response from the service to the response class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
ListLedgersResponse response = new ListLedgersResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.TestExpression("Ledgers", targetDepth))
{
var unmarshaller = new ListUnmarshaller <LedgerSummary, LedgerSummaryUnmarshaller>(LedgerSummaryUnmarshaller.Instance);
response.Ledgers = unmarshaller.Unmarshall(context);
continue;
}
if (context.TestExpression("NextToken", targetDepth))
{
var unmarshaller = StringUnmarshaller.Instance;
response.NextToken = unmarshaller.Unmarshall(context);
continue;
}
}
return(response);
}
public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems)
{
AmazonQLDBConfig config = new AmazonQLDBConfig();
config.RegionEndpoint = region;
ConfigureClient(config);
AmazonQLDBClient client = new AmazonQLDBClient(creds, config);
ListLedgersResponse resp = new ListLedgersResponse();
do
{
ListLedgersRequest req = new ListLedgersRequest
{
NextToken = resp.NextToken
,
MaxResults = maxItems
};
resp = client.ListLedgers(req);
CheckError(resp.HttpStatusCode, "200");
foreach (var obj in resp.Ledgers)
{
AddObject(obj);
}
}while (!string.IsNullOrEmpty(resp.NextToken));
}
