public async Task ListTracesAsync()
{
// Snippet: ListTracesAsync(string,string,int?,CallSettings)
// Create client
TraceServiceClient traceServiceClient = TraceServiceClient.Create();
// Initialize request argument(s)
string projectId = "";
// Make the request
IPagedAsyncEnumerable <ListTracesResponse, Trace> response =
traceServiceClient.ListTracesAsync(projectId);
// Iterate over all response items, lazily performing RPCs as required
await response.ForEachAsync((Trace item) =>
{
// Do something with each item
Console.WriteLine(item);
});
// Or iterate over fixed-sized pages, lazily performing RPCs as required
int pageSize = 10;
IAsyncEnumerable <FixedSizePage <Trace> > fixedSizePages = response.AsPages().WithFixedSize(pageSize);
await fixedSizePages.ForEachAsync((FixedSizePage <Trace> page) =>
{
// Do something with each page of items
Console.WriteLine("A page of results:");
foreach (Trace item in page)
{
Console.WriteLine(item);
}
});
// End snippet
}
/// <summary>
/// Gets a trace that contains a span with the given name.
/// </summary>
/// <param name="expectTrace">True if the trace is expected to exist. This is used
/// to minimize RPC calls.</param>
private async Task <TraceProto> GetTrace(string spanName, bool expectTrace = true)
{
TimeSpan totalSleepTime = TimeSpan.Zero;
while (totalSleepTime <= _timeout)
{
TimeSpan sleepTime = expectTrace ? _sleepInterval : _timeout;
totalSleepTime += sleepTime;
Thread.Sleep(sleepTime);
ListTracesRequest request = new ListTracesRequest
{
ProjectId = _projectId,
StartTime = _startTime,
View = ListTracesRequest.Types.ViewType.Complete
};
var traces = _client.ListTracesAsync(request);
TraceProto trace = await traces.FirstOrDefault(t => t.Spans.Any(s => s.Name.Equals(spanName)));
if (trace != null)
{
return(trace);
}
}
return(null);
}
/// <summary>Snippet for ListTracesAsync</summary>
public async Task ListTracesRequestObjectAsync()
{
// Snippet: ListTracesAsync(ListTracesRequest, CallSettings)
// Create client
TraceServiceClient traceServiceClient = await TraceServiceClient.CreateAsync();
// Initialize request argument(s)
ListTracesRequest request = new ListTracesRequest
{
ProjectId = "",
View = ListTracesRequest.Types.ViewType.Unspecified,
StartTime = new Timestamp(),
EndTime = new Timestamp(),
Filter = "",
OrderBy = "",
};
// Make the request
PagedAsyncEnumerable <ListTracesResponse, Trace> response = traceServiceClient.ListTracesAsync(request);
// Iterate over all response items, lazily performing RPCs as required
await response.ForEachAsync((Trace item) =>
{
// Do something with each item
Console.WriteLine(item);
});
// Or iterate over pages (of server-defined size), performing one RPC per page
await response.AsRawResponses().ForEachAsync((ListTracesResponse page) =>
{
// Do something with each page of items
Console.WriteLine("A page of results:");
foreach (Trace item in page)
{
// Do something with each item
Console.WriteLine(item);
}
});
// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page <Trace> singlePage = await response.ReadPageAsync(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (Trace item in singlePage)
{
// Do something with each item
Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;
// End snippet
}
