fix: move to ezcurl 0.3

dune-project

@@ -40,7 +40,10 @@
     (>= 3.0)
     (< 4.0)))
   (ocaml-lsp-server :with-dev-setup)
-  (ambient-context (and (>= 0.2) (< 0.3)))
+  (ambient-context
+   (and
+    (>= 0.2)
+    (< 0.3)))
   (ocamlformat
    (and
     :with-dev-setup
@@ -84,7 +87,9 @@
    (= :version))
   (odoc :with-doc)
   (ezcurl
-   (>= 0.2.3))
+   (and
+    (>= 0.3)
+    (< 0.4)))
   ocurl
   (alcotest :with-test))
  (synopsis "Collector client for opentelemetry, using http + ezcurl"))

opentelemetry-client-ocurl.opam

@@ -17,7 +17,7 @@ depends: [
   "mtime" {>= "1.4"}
   "opentelemetry" {= version}
   "odoc" {with-doc}
-  "ezcurl" {>= "0.2.3"}
+  "ezcurl" {>= "0.3" & < "0.4"}
   "ocurl"
   "alcotest" {with-test}
 ]

src/client-ocurl/opentelemetry_client_ocurl.ml

@@ -131,7 +131,8 @@ end = struct
     mutable send_threads: Thread.t array;  (** Threads that send data via http *)
   }
 
-  let send_http_ ~stop ~(config : Config.t) (client : Curl.t) ~url data : unit =
+  let send_http_ ~stop ~(config : Config.t) (client : Ezcurl_core.t) ~url data :
+      unit =
     let@ _sc =
       Self_trace.with_ ~kind:Span.Span_kind_producer "otel-ocurl.send-http"
     in