package opentelemetry-lwt

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in-package search v0.2.0

opentelemetry-lwt
- Opentelemetry_lwt
  - Metrics
  - Trace

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include module type of struct include Opentelemetry.Trace end

Traces.

See the spec

type span = Opentelemetry.Span.t

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

This instructs the collector to forward the spans to some backend at a later point.

NOTE be careful not to call this inside a Gc alarm, as it can cause deadlocks.

type scope = Opentelemetry.Trace.scope = {

trace_id : Opentelemetry.Trace_id.t;
span_id : Opentelemetry.Span_id.t;
mutable events : Opentelemetry.Event.t list;
mutable attrs : Opentelemetry.Span.key_value list;

}

Scope to be used with with_.

val add_event : scope -> (unit -> Opentelemetry.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 -> Opentelemetry.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:Opentelemetry.Span.key_value list ->
  ?kind:Span.kind ->
  ?trace_id:Trace_id.t ->
  ?parent:Span.id ->
  ?scope:scope ->
  ?links:(Opentelemetry.Trace_id.t * Opentelemetry.Span_id.t * string) list ->
  string ->
  (Opentelemetry.Trace.scope -> 'a Lwt.t) ->
  'a Lwt.t

Sync span guard