(*
   TODO: more options from
   https://opentelemetry.io/docs/reference/specification/protocol/exporter/
   *)

val get_headers : unit -> (string * string) list

val set_headers : (string * string) list -> unit
(** Set http headers that are sent on every http query to the collector. *)

module Config = Config

val create_consumer :
  ?config:Config.t -> unit -> Opentelemetry_client.Consumer.any_signal_l_builder
(** Consumer that pulls from a queue *)

val create_exporter : ?config:Config.t -> unit -> Opentelemetry.Exporter.t
(** Create a new backend using lwt and ezcurl-lwt *)

val create_backend : ?config:Config.t -> unit -> Opentelemetry.Exporter.t
[@@deprecated "use create_exporter"]

val setup : ?config:Config.t -> ?enable:bool -> unit -> unit
(** Setup endpoint. This modifies {!Opentelemetry.Collector.backend}.
    @param enable
      actually setup the backend (default true). This can be used to
      enable/disable the setup depending on CLI arguments or environment.
    @param config configuration to use *)

val remove_backend : unit -> unit Lwt.t
(** Shutdown current backend
    @since NEXT_RELEASE *)

val with_setup :
  ?after_shutdown:(Opentelemetry.Exporter.t -> unit) ->
  ?config:Config.t ->
  ?enable:bool ->
  unit ->
  (unit -> 'a Lwt.t) ->
  'a Lwt.t
(** [with_setup () f] is like [setup(); f()] but takes care of cleaning up after
    [f()] returns See {!setup} for more details. *)