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opentelemetry-go/sdk/metric/example_test.go
Joshua MacDonald e8546e3bc5
Remove Labelset (#595)
* Remove LabelSet frmo api/metric

* SDK tests pass

* Restore benchmarks

* All tests pass

* Remove all mentions of LabelSet

* Test RecordBatch

* Batch test

* Improves benchmark (some)

* Move the benchmark to match HEAD

* Align labels for GOARCH=386

* Add alignment test

* Disable the stress test fo GOARCH=386

* Fix bug

* Move atomic fields into their own file

* Add a TODO

* Comments

* Remove metric.Labels(...)

* FTB

Co-authored-by: Liz Fong-Jones <lizf@honeycomb.io>
2020-03-27 14:06:48 -07:00

56 lines
1.4 KiB
Go

// 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"
"fmt"
"time"
"go.opentelemetry.io/otel/api/key"
"go.opentelemetry.io/otel/api/metric"
"go.opentelemetry.io/otel/exporters/metric/stdout"
)
func ExampleNew() {
pusher, err := stdout.NewExportPipeline(stdout.Config{
PrettyPrint: true,
DoNotPrintTime: true, // This makes the output deterministic
}, time.Minute)
if err != nil {
panic(fmt.Sprintln("Could not initialize stdout exporter:", err))
}
defer pusher.Stop()
ctx := context.Background()
key := key.New("key")
meter := pusher.Meter("example")
counter := metric.Must(meter).NewInt64Counter("a.counter", metric.WithKeys(key))
counter.Add(ctx, 100, key.String("value"))
// Output:
// {
// "updates": [
// {
// "name": "a.counter{key=value}",
// "sum": 100
// }
// ]
// }
}