feat: add datadog meta headers (#60)

* feat: add datadog meta headers * feat: add missing header * fix: fix tests
spandex-project · Aug 26, 2023 · 13d2031 · 13d2031
1 parent ba1c67a
commit 13d2031
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diff --git a/lib/spandex_datadog/api_server.ex b/lib/spandex_datadog/api_server.ex
@@ -35,7 +35,12 @@ defmodule SpandexDatadog.ApiServer do
   # Same as HTTPoison.headers
   @type headers :: [{atom, binary}] | [{binary, binary}] | %{binary => binary} | any
 
-  @headers [{"Content-Type", "application/msgpack"}]
+  @headers [
+    {"Content-Type", "application/msgpack"},
+    {"Datadog-Meta-Lang", "elixir"},
+    {"Datadog-Meta-Lang-Version", System.version()},
+    {"Datadog-Meta-Tracer-Version", Application.spec(:spandex_datadog)[:vsn]}
+  ]
 
   @default_opts [
     host: "localhost",

diff --git a/test/api_server_test.exs b/test/api_server_test.exs
@@ -233,6 +233,9 @@ defmodule SpandexDatadog.ApiServerTest do
 
       headers = [
         {"Content-Type", "application/msgpack"},
+        {"Datadog-Meta-Lang", "elixir"},
+        {"Datadog-Meta-Lang-Version", System.version()},
+        {"Datadog-Meta-Tracer-Version", nil},
         {"X-Datadog-Trace-Count", 1}
       ]