forked from open-telemetry/opentelemetry-go
/
example_test.go
60 lines (54 loc) · 1.98 KB
/
example_test.go
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// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metric_test
import (
"context"
"log"
"go.opentelemetry.io/otel/metric/global"
"go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/resource"
semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
)
func Example() {
// This reader is used as a stand-in for a reader that will actually export
// data. See exporters in the go.opentelemetry.io/otel/exporters package
// for more information.
reader := metric.NewManualReader()
// See the go.opentelemetry.io/otel/sdk/resource package for more
// information about how to create and use Resources.
res := resource.NewWithAttributes(
semconv.SchemaURL,
semconv.ServiceNameKey.String("my-service"),
semconv.ServiceVersionKey.String("v0.1.0"),
)
meterProvider := metric.NewMeterProvider(
metric.WithResource(res),
metric.WithReader(reader),
)
global.SetMeterProvider(meterProvider)
defer func() {
err := meterProvider.Shutdown(context.Background())
if err != nil {
log.Fatalln(err)
}
}()
// The MeterProvider is configured and registered globally. You can now run
// your code instrumented with the OpenTelemetry API that uses the global
// MeterProvider without having to pass this MeterProvider instance. Or,
// you can pass this instance directly to your instrumented code if it
// accepts a MeterProvider instance.
//
// See the go.opentelemetry.io/otel/metric package for more information
// about the metric API.
}