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#include <chrono>
#include <memory>
#include <thread>
#include "prometheus/client_metric.h"
#include "prometheus/counter.h"
#include "prometheus/exposer.h"
#include "prometheus/family.h"
#include "prometheus/registry.h"
int main() {
using namespace prometheus;
// create an http server running on port 8080
Exposer exposer{"127.0.0.1:8080", 1};
auto registryA = std::make_shared<Registry>();
// add a new counter family to the registry (families combine values with the
// same name, but distinct label dimensions)
auto& counter_familyA = BuildCounter()
.Name("time_running_seconds_total")
.Help("How many seconds is this server running?")
.Register(*registryA);
// add a counter to the metric family
auto& seconds_counterA = counter_familyA.Add(
{{"another_label", "bar"}, {"yet_another_label", "baz"}});
// ask the exposer to scrape registryA on incoming scrapes for "/metricsA"
exposer.RegisterCollectable(registryA, "/metricsA");
auto registryB = std::make_shared<Registry>();
auto& counter_familyB =
BuildCounter()
.Name("other_time_running_seconds_total")
.Help("How many seconds has something else been running?")
.Register(*registryB);
auto& seconds_counterB = counter_familyB.Add(
{{"another_label", "not_bar"}, {"yet_another_label", "not_baz"}});
// This endpoint exposes registryB.
exposer.RegisterCollectable(registryB, "/metricsB");
for (;;) {
std::this_thread::sleep_for(std::chrono::seconds(1));
// increment the counters by one (second)
seconds_counterA.Increment(1.0);
seconds_counterB.Increment(1.5);
}
return 0;
}
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