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telemetry.go
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telemetry.go
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package sprout
import (
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/trace"
"go.uber.org/fx"
)
// Tracer returns a function that can be used with fx.Provide to make a tracer
// available to the application.
func Tracer(name string, opts ...trace.TracerOption) any {
return func(tp trace.TracerProvider) trace.Tracer {
return tp.Tracer(name, opts...)
}
}
// ServiceTracer returns a function that can be used with fx.Provide to make a
// tracer available to the application. The tracer will use the name and version
// of the service.
func ServiceTracer(opts ...trace.TracerOption) any {
return fx.Annotate(func(serviceName string, serviceVersion string, tp trace.TracerProvider) trace.Tracer {
optsWithServiceVersion := append([]trace.TracerOption{
trace.WithInstrumentationVersion(serviceVersion),
}, opts...)
return tp.Tracer(serviceName, optsWithServiceVersion...)
}, fx.ParamTags(`name:"service:name"`, `name:"service:version"`))
}
// Meter returns a function that can be used with fx.Provide to make a meter
// available to the application.
func Meter(name string, opts ...metric.MeterOption) any {
return func(mp metric.MeterProvider) metric.Meter {
return mp.Meter(name, opts...)
}
}
// ServiceMeter returns a function that can be used with fx.Provide to make a
// meter available to the application. The meter will use the name and version
// of the service.
func ServiceMeter(opts ...metric.MeterOption) any {
return fx.Annotate(func(serviceName string, serviceVersion string, mp metric.MeterProvider) metric.Meter {
optsWithServiceVersion := append([]metric.MeterOption{
metric.WithInstrumentationVersion(serviceVersion),
}, opts...)
return mp.Meter(serviceName, optsWithServiceVersion...)
}, fx.ParamTags(`name:"service:name"`, `name:"service:version"`))
}