Trace (opentelemetry.Opentelemetry.Trace)

type span = Span.t

val make_resource_spans : 
  ?service_name:string ->
  ?attrs:
    (string * [< `Bool of bool | `Int of int | `None | `String of string ])
      list ->
  Proto.Trace.span list ->
  Proto.Trace.resource_spans

val emit : 
  ?service_name:string ->
  ?attrs:
    (string * [< `Bool of bool | `Int of int | `None | `String of string ])
      list ->
  span list ->
  unit

Sync emitter

type scope = {

trace_id : Trace_id.t;

span_id : Span_id.t;

mutable events : Event.t list;

mutable attrs : Span.key_value list;

}

Scope to be used with with_.

val add_event : scope -> ( unit -> Event.t ) -> unit

Add an event to the scope. It will be aggregated into the span.

Note that this takes a function that produces an event, and will only call it if there is an instrumentation backend.

val add_attrs : scope -> ( unit -> Span.key_value list ) -> unit

Add an attr to the scope. It will be aggregated into the span.

Note that this takes a function that produces attributes, and will only call it if there is an instrumentation backend.

val with_ : 
  ?trace_state:string ->
  ?service_name:string ->
  ?attrs:(string * value) list ->
  ?kind:Span.kind ->
  ?trace_id:Trace_id.t ->
  ?parent:Span.id ->
  ?scope:scope ->
  ?links:(Trace_id.t * Span_id.t * string) list ->
  string ->
  ( scope -> 'a ) ->
  'a

Sync span guard