HTTP_client (octez-libs.Octez_telemetry.HTTP

val call_service : 
  Tezos_rpc_http.Media_type.t Tezos_base.TzPervasives.trace ->
  ?logger:Tezos_rpc_http_client_unix.RPC_client_unix.logger ->
  ?headers:(string * string) Tezos_base.TzPervasives.trace ->
  base:Uri.t ->
  ([< Resto.meth ], unit, 'a, 'b, 'c, 'd) Tezos_rpc.Service.t ->
  'a ->
  'b ->
  'c ->
  'd Tezos_base.TzPervasives.tzresult Lwt.t

call_service media_types ?logger ?headers ~base service params query body makes an HTTP request to the specified RPC service with OpenTelemetry tracing.

This function follows the OpenTelemetry semantic conventions for HTTP client spans, automatically setting appropriate attributes like HTTP method, URL, status code, etc. It also adds the header traceparent to allow traces across different services.

parameter media_types
List of accepted media types for the request

parameter logger
Optional logger for RPC client operations

parameter headers
Optional additional HTTP headers to include in the request

parameter base
The base URI to which the request will be sent

parameter service
The RPC service definition

parameter params
The path parameters for the service

parameter query
The query parameters for the service

parameter body
The request body

returns
The result of the RPC call, wrapped in the Tezos error monad

val span_attributes : 
  Tezos_rpc_http.Media_type.t list ->
  [< Resto.meth ] ->
  ?route:string ->
  Uri.t ->
  Opentelemetry.key_value list

HTTP client span attributes that follow Opentelemetry semantic conventions