example.py

from typing import Iterable

from opentelemetry._metrics import get_meter_provider, set_meter_provider
from opentelemetry._metrics.observation import Observation
from opentelemetry.exporter.otlp.proto.grpc._metric_exporter import (
    OTLPMetricExporter,
)
from opentelemetry.sdk._metrics import MeterProvider
from opentelemetry.sdk._metrics.export import PeriodicExportingMetricReader

exporter = OTLPMetricExporter(insecure=True)
reader = PeriodicExportingMetricReader(exporter)
provider = MeterProvider(metric_readers=[reader])
set_meter_provider(provider)


def observable_counter_func() -> Iterable[Observation]:
    yield Observation(1, {})


def observable_up_down_counter_func() -> Iterable[Observation]:
    yield Observation(-10, {})


def observable_gauge_func() -> Iterable[Observation]:
    yield Observation(9, {})


meter = get_meter_provider().get_meter("getting-started", "0.1.2")

# Counter
counter = meter.create_counter("counter")
counter.add(1)

# Async Counter
observable_counter = meter.create_observable_counter(
    "observable_counter", observable_counter_func
)

# UpDownCounter
updown_counter = meter.create_up_down_counter("updown_counter")
updown_counter.add(1)
updown_counter.add(-5)

# Async UpDownCounter
observable_updown_counter = meter.create_observable_up_down_counter(
    "observable_updown_counter", observable_up_down_counter_func
)

# Histogram
histogram = meter.create_histogram("histogram")
histogram.record(99.9)

# Async Gauge
gauge = meter.create_observable_gauge("gauge", observable_gauge_func)