update creating case

business_cases/post_creating/client/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/client/PostCreatingClientCase.kt

@@ -1,22 +1,26 @@
 package dev.inmo.postssystem.business_cases.post_creating.client
 
+import dev.inmo.micro_utils.ktor.client.*
 import dev.inmo.postssystem.business_cases.post_creating.server.*
 import dev.inmo.postssystem.core.content.Content
 import dev.inmo.postssystem.core.post.RegisteredPost
 import dev.inmo.postssystem.core.publishing.TriggerId
-import dev.inmo.micro_utils.ktor.client.BodyPair
-import dev.inmo.micro_utils.ktor.client.unipost
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
 import io.ktor.client.HttpClient
+import kotlinx.serialization.builtins.nullable
 
 class PostCreatingClientCase(
     private val baseUrl: String,
-    private val client: HttpClient
+    private val unifiedRequester: UnifiedRequester,
+    private val rootRoute: String? = postCreatingRootRoute
 ) : PostCreatingCase {
-    private val realBaseUrl = "$baseUrl/$postCreatingRootRoute"
-    override suspend fun createPost(postContent: List<Content>, triggerId: TriggerId?): RegisteredPost? = client.unipost(
+    private val realBaseUrl = rootRoute ?.let { "$baseUrl/$rootRoute" } ?: baseUrl
+    override suspend fun createPost(
+        postContent: List<Content>,
+        triggerId: TriggerId?
+    ): RegisteredPost? = unifiedRequester.unipost(
         buildStandardUrl(realBaseUrl, postCreatingCreatePostRoute),
         BodyPair(PostCreatingCreatePostModel.serializer(), PostCreatingCreatePostModel(postContent, triggerId)),
-        RegisteredPost.serializer()
+        RegisteredPost.serializer().nullable
     )
 }