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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
/**
* This is a basic example for zpages that helps users get familiar with how to
* use this feature in OpenTelemetery
*/
#include <chrono>
#include <iostream>
#include <string>
#include "opentelemetry/ext/zpages/zpages.h" // Required file include for zpages
using opentelemetry::common::SteadyTimestamp;
namespace trace_api = opentelemetry::trace;
int main(int argc, char *argv[])
{
/**
* The following line initializes zPages and starts a webserver at
* http://localhost:30000/tracez/ where spans that are created in the application
* can be viewed.
* Note that the webserver is destroyed after the application ends execution.
*/
ZPages::Initialize();
auto tracer = trace_api::Provider::GetTracerProvider()->GetTracer("");
std::cout << "This example for zPages creates a few types of spans and then "
<< "creates a span every second for the duration of the application"
<< "\n";
// Error span
std::map<std::string, opentelemetry::common::AttributeValue> attribute_map;
attribute_map["completed_search_for"] = "Unknown user";
tracer->StartSpan("find user", attribute_map)
->SetStatus(trace_api::StatusCode::kError, "User not found");
// Long time duration span
std::map<std::string, opentelemetry::common::AttributeValue> attribute_map2;
attribute_map2["completed_search_for"] = "John Doe";
trace_api::StartSpanOptions start;
start.start_steady_time = SteadyTimestamp(nanoseconds(1));
trace_api::EndSpanOptions end;
end.end_steady_time = SteadyTimestamp(nanoseconds(1000000000000));
tracer->StartSpan("find user", attribute_map2, start)->End(end);
// Running(deadlock) span
std::map<std::string, opentelemetry::common::AttributeValue> attribute_map3;
attribute_map3["searching_for"] = "Deleted user";
auto running_span = tracer->StartSpan("find user", attribute_map3);
// Create a completed span every second till user stops the loop
std::cout << "Presss CTRL+C to stop...\n";
while (true)
{
std::this_thread::sleep_for(seconds(1));
tracer->StartSpan("ping user")->End();
}
}
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