with_otel_record: Record OpenTelemetry output, for testing purposes

In otelsdk: 'R' 'SDK' and Exporters for 'OpenTelemetry'

Record OpenTelemetry output, for testing purposes

Description

You can use this function to test that OpenTelemetry output is correctly generated for your package or application.

Usage

with_otel_record(
  expr,
  what = c("traces", "metrics"),
  tracer_opts = list(),
  meter_opts = list()
)

Arguments

expr	Expression to evaluate.
what	Character vector, type(s) of OpenTelemetry output to collect.
tracer_opts	Named list of options to pass to the tracer provider.
meter_opts	Named list of options to pass to the meter provider.

Details

It evaluates the supplied expression, collects OpenTelemetry output from it and returns it.

Note: with_otel_record() cannot record logs yet.

with_otel_record() uses tracer_provider_memory and meter_provider_memory internally.

Value

A list with the output for each output type. Entries:

• value: value of expr.

• traces: the recorded spans, if requested in what.

• metrics: the recorded metrics measurements, if requested in what.

Examples

spns <- with_otel_record({
  trc <- otel::get_tracer("mytracer")
  spn1 <- trc$start_local_active_span()
  spn2 <- trc$start_local_active_span("my")
  spn2$end()
  spn1$end()
  NULL
})
spns

otelsdk documentation built on Sept. 10, 2025, 10:32 a.m.