init with pagination

pagination/ktor/common/build.gradle

@@ -0,0 +1,16 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+}
+
+apply from: "$mppProjectWithSerializationPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api internalProject("micro_utils.pagination.common")
+            }
+        }
+    }
+}

pagination/ktor/common/src/commonMain/kotlin/dev/inmo/micro_utils/pagination/PaginationInUrl.kt

@@ -0,0 +1,23 @@
+package dev.inmo.micro_utils.pagination
+
+const val paginationPageKey = "ppage"
+const val paginationSizeKey = "psize"
+
+val Pagination.asUrlQueryParts
+    get() = mapOf(
+        paginationPageKey to page.toString(),
+        paginationSizeKey to size.toString()
+    )
+
+val Pagination.asUrlQueryArrayParts
+    get() = arrayOf(
+        paginationPageKey to page.toString(),
+        paginationSizeKey to size.toString()
+    )
+
+val Map<String, String?>.extractPagination: Pagination
+    get() = SimplePagination(
+        get(paginationPageKey) ?.toIntOrNull() ?: 0,
+        get(paginationSizeKey) ?.toIntOrNull() ?: defaultMediumPageSize
+    )
+

pagination/ktor/server/build.gradle

@@ -0,0 +1,23 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+}
+
+apply from: "$mppJavaProjectPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api internalProject("micro_utils.pagination.ktor.common")
+            }
+        }
+
+        jvmMain {
+            dependencies {
+                api "io.ktor:ktor-server:$ktor_version"
+                api "io.ktor:ktor-server-host-common:$ktor_version"
+            }
+        }
+    }
+}

pagination/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/pagination/ServerPaginationHelpers.kt

@@ -0,0 +1,14 @@
+package dev.inmo.micro_utils.pagination
+
+import io.ktor.application.ApplicationCall
+import io.ktor.http.Parameters
+
+val Parameters.extractPagination: Pagination
+    get() = SimplePagination(
+        get("page") ?.toIntOrNull() ?: 0,
+        get("size") ?.toIntOrNull() ?: defaultMediumPageSize
+    )
+
+val ApplicationCall.extractPagination: Pagination
+    get() = request.queryParameters.extractPagination
+