feat(transport): send WorkOS Android/<version> User-Agent header

release-please-config.json

@@ -10,6 +10,10 @@
         {
           "type": "generic",
           "path": "build.gradle.kts"
+        },
+        {
+          "type": "generic",
+          "path": "src/main/kotlin/com/workos/android/internal/Transport.kt"
         }
       ]
     }

src/main/kotlin/com/workos/android/internal/Transport.kt

@@ -40,6 +40,16 @@ private const val BACKOFF_MULTIPLIER = 2.0
 private const val MAX_DELAY_MS = 8_000L
 private const val JITTER_FACTOR = 0.5
 
+// Stamped by release-please on every release (see release-please-config.json);
+// must stay on one line with the marker comment or it stops being updated.
+private const val VERSION = "0.2.1" // x-release-please-version
+
+/**
+ * Mirrors the other WorkOS SDKs' `WorkOS <platform>/<version>` shape, which the
+ * data platform parses with an end-anchored regex — nothing may follow the version.
+ */
+private const val USER_AGENT = "WorkOS Android/$VERSION"
+
 /** A fully-read HTTP exchange. Read before any error decision so the body is available. */
 private class RawResponse(
     val code: Int,
@@ -113,6 +123,7 @@ public class Transport(
                 .method(method, requestBody)
                 .header("Authorization", "Bearer " + configuration.apiKey)
                 .header("Content-Type", "application/json")
+                .header("User-Agent", USER_AGENT)
         if (idempotencyKey != null) builder.header("Idempotency-Key", idempotencyKey)
         val extra = options?.headers
         if (extra != null) {

src/test/kotlin/com/workos/android/TransportBehaviorTest.kt

@@ -55,6 +55,19 @@ class TransportBehaviorTest {
             assertEquals("Bearer sk_test_123", server.awaitRequest().headerValue("Authorization"))
         }
 
+    @Test
+    fun `sends a WorkOS Android user agent ending in the version`() =
+        runTest {
+            val (c, server) = testClient(responding = """{"data":[],"list_metadata":{}}""")
+
+            c.organizations.list()
+
+            val userAgent = server.awaitRequest().headerValue("User-Agent")
+            assertNotNull(userAgent)
+            // End-anchored like the data platform's SDK-attribution regexes.
+            assertTrue(userAgent.matches(Regex("""WorkOS Android/[^\s]+""")), "unexpected User-Agent: $userAgent")
+        }
+
     @Test
     fun `retries a 500 and then succeeds`() =
         runTest {