diff --git a/src/main/kotlin/ltd/hlaeja/util/Mapping.kt b/src/main/kotlin/ltd/hlaeja/util/Mapping.kt
new file mode 100644
index 0000000..d25e234
--- /dev/null
+++ b/src/main/kotlin/ltd/hlaeja/util/Mapping.kt
@@ -0,0 +1,10 @@
+package ltd.hlaeja.util
+
+import ltd.hlaeja.entity.TypeEntity
+import ltd.hlaeja.library.deviceRegistry.Type
+import org.springframework.http.HttpStatus.EXPECTATION_FAILED
+import org.springframework.web.server.ResponseStatusException
+
+fun TypeEntity.toTypeResponse(): Type.Response {
+    return Type.Response(id ?: throw ResponseStatusException(EXPECTATION_FAILED), name)
+}
diff --git a/src/test/kotlin/ltd/hlaeja/util/MappingKtTest.kt b/src/test/kotlin/ltd/hlaeja/util/MappingKtTest.kt
new file mode 100644
index 0000000..02169d7
--- /dev/null
+++ b/src/test/kotlin/ltd/hlaeja/util/MappingKtTest.kt
@@ -0,0 +1,48 @@
+package ltd.hlaeja.util
+
+import java.time.LocalDateTime
+import java.time.ZoneId
+import java.time.ZonedDateTime
+import java.util.UUID
+import kotlin.test.Test
+import ltd.hlaeja.assertj.assertThat
+import ltd.hlaeja.entity.TypeEntity
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.Nested
+import org.springframework.web.server.ResponseStatusException
+
+class MappingKtTest {
+    companion object {
+        val timestamp: ZonedDateTime = ZonedDateTime.of(LocalDateTime.of(2000, 1, 1, 0, 0, 0, 1), ZoneId.of("UTC"))
+    }
+
+    @Nested
+    inner class TypeMapping {
+
+        @Test
+        fun `entity to response successful`() {
+            // given
+            val entity = TypeEntity(
+                UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                timestamp,
+                "name",
+            )
+
+            // when
+            val response = entity.toTypeResponse()
+
+            // then
+            assertThat(response.id).isUUID("00000000-0000-0000-0000-000000000000")
+            assertThat(response.name).isEqualTo("name")
+        }
+
+        @Test
+        fun `entity to response exception`() {
+            // then exception
+            assertThrows(ResponseStatusException::class.java) {
+                TypeEntity(null, timestamp, "name").toTypeResponse()
+            }
+        }
+    }
+}