started to fill client part

ClientServerCommon/build.gradle

@@ -0,0 +1,38 @@
+project.version = "0.1.0"
+project.group = "com.insanusmokrassar"
+
+buildscript {
+    repositories {
+        mavenLocal()
+        jcenter()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
+        classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:$gradle_bintray_plugin_version"
+    }
+}
+
+apply plugin: 'java-library'
+apply plugin: 'kotlin'
+apply plugin: 'kotlinx-serialization'
+
+repositories {
+    mavenLocal()
+    jcenter()
+    mavenCentral()
+    maven { url "https://kotlin.bintray.com/kotlinx" }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    api project(":Core")
+}
+
+compileKotlin {
+    kotlinOptions {
+        freeCompilerArgs = [ disableImplicitReflectionSerializerAnnotation ]
+    }
+}

ClientServerCommon/src/main/kotlin/com/insanusmokrassar/postssystem/core/clientserver/common/Paths.kt

@@ -0,0 +1,6 @@
+package com.insanusmokrassar.postssystem.core.clientserver.common
+
+const val getPostByIdAddress = "core/posts/get/id"
+const val getPostsByContentIdAddress = "core/posts/get/content_id"
+const val getPostsByDatesAddress = "core/posts/get/dates"
+const val getPostsByPaginationAddress = "core/posts/get/pagination"

ClientServerCommon/src/main/kotlin/com/insanusmokrassar/postssystem/core/clientserver/common/ReadModels.kt

@@ -0,0 +1,11 @@
+package com.insanusmokrassar.postssystem.core.clientserver.common
+
+import com.insanusmokrassar.postssystem.core.post.PostId
+import kotlinx.serialization.Serializable
+
+sealed class ReadModel
+
+@Serializable
+class ReadPostsById(
+    val postId: PostId
+)