Add test for shorthands in external API

test/plausible_web/controllers/api/external_controller_test.exs

@@ -416,6 +416,27 @@ defmodule PlausibleWeb.Api.ExternalControllerTest do
     assert pageview["referrer_source"] == "Hello World"
   end
 
+  test "accepts shorthand map keys", %{conn: conn} do
+    params = %{
+      n: "pageview",
+      u: "http://www.example.com/opportunity",
+      s: "Hello%20World",
+      d: "external-controller-test-22.com",
+      r: "https://facebook.com/page",
+      w: 300
+    }
+
+    conn
+    |> put_req_header("content-type", "text/plain")
+    |> post("/api/event", Jason.encode!(params))
+
+    pageview = get_event("external-controller-test-22.com")
+
+    assert pageview["pathname"] == "/opportunity"
+    assert pageview["referrer_source"] == "Hello World"
+    assert pageview["referrer"] == "facebook.com/page"
+    assert pageview["screen_size"] == "Mobile"
+  end
 
   test "responds 400 when required fields are missing", %{conn: conn} do
     params = %{}