spanKind property

String? spanKind
getter/setter pair

Distinguishes between spans generated in a particular context.

For example, two spans with the same name may be distinguished using CLIENT (caller) and SERVER (callee) to identify an RPC call. Possible string values are:

  • "SPAN_KIND_UNSPECIFIED" : Unspecified. Do NOT use as default. Implementations MAY assume SpanKind.INTERNAL to be default.
  • "INTERNAL" : Indicates that the span is used internally. Default value.
  • "SERVER" : Indicates that the span covers server-side handling of an RPC or other remote network request.
  • "CLIENT" : Indicates that the span covers the client-side wrapper around an RPC or other remote request.
  • "PRODUCER" : Indicates that the span describes producer sending a message to a broker. Unlike client and server, there is no direct critical path latency relationship between producer and consumer spans (e.g. publishing a message to a pubsub service).
  • "CONSUMER" : Indicates that the span describes consumer receiving a message from a broker. Unlike client and server, there is no direct critical path latency relationship between producer and consumer spans (e.g. receiving a message from a pubsub service subscription).

Implementation

core.String? spanKind;