feat: add datadog meta headers (#60)

DReigada · web-flow · commit 13d20311103b · 2023-08-26T10:12:39.000-04:00
* feat: add datadog meta headers

* feat: add missing header

* fix: fix tests
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}
       ]
 

Original file line number	Diff line number	Diff line change
`@@ -233,6 +233,9 @@ defmodule SpandexDatadog.ApiServerTest do`
`233`	`233`
`234`	`234`	`headers = [`
`235`	`235`	`{"Content-Type", "application/msgpack"},`
	`236`	`+ {"Datadog-Meta-Lang", "elixir"},`
	`237`	`+ {"Datadog-Meta-Lang-Version", System.version()},`
	`238`	`+ {"Datadog-Meta-Tracer-Version", nil},`
`236`	`239`	`{"X-Datadog-Trace-Count", 1}`
`237`	`240`	`]`
`238`	`241`