resource.md

Resource is an immutable wrapper around Attributes that describes the entity producing telemetry — the service, container, host, or runtime. It is stamped on every span and every log record so that a backend can group signals by their origin. All three provider types (TracerProvider, LoggerProvider, MeterProvider) accept a Resource at configuration time; Tracer and Logger propagate it onto the signals they emit, while metric instruments do not carry it — collected MetricData holds only the per-measurement Attributes.

final case class Resource(attributes: Attributes)

object Resource {
  val empty:   Resource                       // no attributes
  val default: Resource                       // service.name + telemetry.sdk.* attributes
  def create(attrs: Attributes): Resource

  // merge comes from an implicit class on the companion
  implicit class ResourceOps(val self: Resource) {
    def merge(other: Resource): Resource      // other's attributes take precedence on duplicate keys
  }
}

Predefined Instances

Instance	Description
Resource.empty	A Resource with no attributes. Use as a neutral base.
Resource.default	Pre-populated with service.name = "unknown_service", telemetry.sdk.name = "zio-blocks", telemetry.sdk.language = "scala", and the SDK version from build info.