Issue while upgrading go.opentelemetry.io/otel/metric from v0.31.0 to v0.37.0

[anil181]

As per the documentation https://github.com/open-telemetry/opentelemetry-go/releases/tag/sdk/metric/v0.32.0
The packages go.opentelemetry.io/otel/sdk/metric/selector/simple, go.opentelemetry.io/otel/sdk/metric/controller/basic (controller), go.opentelemetry.io/otel/sdk/metric/processor/basic (processor)are removed.

As per the existing code a pusher is being created which then periodically collects and exports metrics with the configured interval

pusher := controller.New(
		processor.NewFactory(
			simple.NewWithInexpensiveDistribution(),
			metricExp,
		),
		controller.WithExporter(metricExp),
		controller.WithCollectPeriod(2*time.Second),
	)

I could not find a proper documentation on how to handle these breaking changes? Could some one guide me to any documentation or examples on handling these changes ?

Thanks & Reagrds,
Anil

[pellared]

AFAIK there is no "migration documentation" other than: https://github.com/open-telemetry/opentelemetry-go/blob/main/CHANGELOG.md

The metric SDK in go.opentelemetry.io/otel/sdk/metric is completely refactored to comply with the OpenTelemetry specification. Please see the package documentation for how the new SDK is initialized and configured.

See: https://pkg.go.dev/go.opentelemetry.io/otel/sdk/metric

[anil181]

Thank you Robert, i read but for few updates there is no help or examples.

In the code we have references to some interfaces which are removed but there is not help in the CHANGELOG.md
eg:
otlpmetricgrpc.NewClient
otlpmetric.Client
*otlpmetric.Exporter
*otlpmetricgrpc.Exporter

Could you please suggest or give any pointers on how to replace these?

[pellared]

See the following:

• https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc
• https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp