package opentelemetry-client-cohttp-lwt

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type t = private {
  1. debug : bool;
  2. url_traces : string;
    (*

    Url to send traces

    *)
  3. url_metrics : string;
    (*

    Url to send metrics

    *)
  4. url_logs : string;
    (*

    Url to send logs

    *)
  5. headers : (string * string) list;
    (*

    API headers sent to the endpoint. Default is none or "OTEL_EXPORTER_OTLP_HEADERS" if set.

    *)
  6. batch_traces : int option;
    (*

    Batch traces? If Some i, then this produces batches of (at most) i items. If None, there is no batching.

    Note that traces and metrics are batched separately. Default Some 400.

    *)
  7. batch_metrics : int option;
    (*

    Batch metrics? If Some i, then this produces batches of (at most) i items. If None, there is no batching.

    Note that traces and metrics are batched separately. Default None.

    *)
  8. batch_logs : int option;
    (*

    Batch logs? See batch_metrics for details. Default Some 400

    *)
  9. batch_timeout_ms : int;
    (*

    Number of milliseconds after which we will emit a batch, even incomplete. Note that the batch might take longer than that, because this is only checked when a new event occurs. Default 500.

    *)
}

Configuration.

To build one, use make below. This might be extended with more fields in the future.

val make : ?debug:bool -> ?url:string -> ?url_traces:string -> ?url_metrics:string -> ?url_logs:string -> ?headers:(string * string) list -> ?batch_traces:int option -> ?batch_metrics:int option -> ?batch_logs:int option -> ?batch_timeout_ms:int -> unit -> t

Make a configuration.

  • parameter thread

    if true and bg_threads is not provided, we will pick a number of bg threads. Otherwise the number of bg_threads superseeds this option.

  • parameter url

    base url used to construct per-signal urls. Per-signal url options take precedence over this base url. Default is "http://localhost:4318", or "OTEL_EXPORTER_OTLP_ENDPOINT" if set.

    Example of constructed per-signal urls with the base url http://localhost:4318

    • Traces: http://localhost:4318/v1/traces
    • Metrics: http://localhost:4318/v1/metrics
    • Logs: http://localhost:4318/v1/logs

    Use per-signal url options if different urls are needed for each signal type.

  • parameter url_traces

    url to send traces, or "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT" if set. The url is used as-is without any modification.

  • parameter url_metrics

    url to send metrics, or "OTEL_EXPORTER_OTLP_METRICS_ENDPOINT" if set. The url is used as-is without any modification.

  • parameter url_logs

    url to send logs, or "OTEL_EXPORTER_OTLP_LOGS_ENDPOINT" if set. The url is used as-is without any modification.

val pp : Format.formatter -> t -> unit
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