From ac58b6a7e32cd2283ddfaa5254fd7c5939ac58ae Mon Sep 17 00:00:00 2001
From: InsanusMokrassar <ovsyannikov.alexey95@gmail.com>
Date: Tue, 6 Sep 2022 21:16:41 +0600
Subject: [PATCH] bodyOrNull/respondOrNoContent

---
 CHANGELOG.md                                      |  6 ++++++
 .../inmo/micro_utils/ktor/client/BodyOrNull.kt    |  9 +++++++++
 .../micro_utils/ktor/server/RespondOrNoContent.kt | 15 +++++++++++++++
 3 files changed, 30 insertions(+)
 create mode 100644 ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/BodyOrNull.kt
 create mode 100644 ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/RespondOrNoContent.kt

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b8d726d8ea..3809c8f8fd4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## 0.12.8
 
+* `Ktor`:
+  * `Client`:
+    * New extension `HttpClient#bodyOrNull` which returns `null` in case when server responded with `No Content` (204)
+  * `Server`:
+    * New extension `ApplicationCall#respondOrNoContent` which responds `No Content` (204) when passed data is null
+
 ## 0.12.7
 
 * `Repos`:
diff --git a/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/BodyOrNull.kt b/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/BodyOrNull.kt
new file mode 100644
index 00000000000..55abf3b7c87
--- /dev/null
+++ b/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/BodyOrNull.kt
@@ -0,0 +1,9 @@
+package dev.inmo.micro_utils.ktor.client
+
+import io.ktor.client.call.body
+import io.ktor.client.statement.HttpResponse
+import io.ktor.http.HttpStatusCode
+
+suspend inline fun <reified T : Any> HttpResponse.bodyOrNull() = takeIf {
+    status == HttpStatusCode.OK
+} ?.body<T>()
diff --git a/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/RespondOrNoContent.kt b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/RespondOrNoContent.kt
new file mode 100644
index 00000000000..3bc770d1ede
--- /dev/null
+++ b/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/RespondOrNoContent.kt
@@ -0,0 +1,15 @@
+package dev.inmo.micro_utils.ktor.server
+
+import io.ktor.http.HttpStatusCode
+import io.ktor.server.application.ApplicationCall
+import io.ktor.server.response.respond
+
+suspend inline fun <reified T : Any> ApplicationCall.respondOrNoContent(
+    data: T?
+) {
+    if (data == null) {
+        respond(HttpStatusCode.NoContent)
+    } else {
+        respond(data)
+    }
+}