Adjust for Ktor 2.x APIs

Author: SebastianAigner

src/jsMain/kotlin/Api.kt

@@ -1,28 +1,31 @@
 import io.ktor.http.*
 import io.ktor.client.*
+import io.ktor.client.call.*
+import io.ktor.client.plugins.contentnegotiation.*
 import io.ktor.client.request.*
-import io.ktor.client.features.json.JsonFeature
-import io.ktor.client.features.json.serializer.KotlinxSerializer
+import io.ktor.serialization.kotlinx.json.*
 
 import kotlinx.browser.window
 
 val endpoint = window.location.origin // only needed until https://github.com/ktorio/ktor/issues/1695 is resolved
 
 val jsonClient = HttpClient {
-    install(JsonFeature) { serializer = KotlinxSerializer() }
+    install(ContentNegotiation) {
+        json()
+    }
 }
 
 suspend fun getShoppingList(): List<ShoppingListItem> {
-    return jsonClient.get(endpoint + ShoppingListItem.path)
+    return jsonClient.get(endpoint + ShoppingListItem.path).body()
 }
 
 suspend fun addShoppingListItem(shoppingListItem: ShoppingListItem) {
-    jsonClient.post<Unit>(endpoint + ShoppingListItem.path) {
+    jsonClient.post(endpoint + ShoppingListItem.path) {
         contentType(ContentType.Application.Json)
-        body = shoppingListItem
+        setBody(shoppingListItem)
     }
 }
 
 suspend fun deleteShoppingListItem(shoppingListItem: ShoppingListItem) {
-    jsonClient.delete<Unit>(endpoint + ShoppingListItem.path + "/${shoppingListItem.id}")
+    jsonClient.delete(endpoint + ShoppingListItem.path + "/${shoppingListItem.id}")
 }

src/jsMain/kotlin/Main.kt

@@ -1,8 +1,8 @@
-import react.dom.render
 import kotlinx.browser.document
 import react.create
+import react.dom.client.createRoot
 
 fun main() {
     val container = document.getElementById("root") ?: error("Couldn't find container!")
-    render(App.create(), container)
+    createRoot(container).render(App.create())
 }

src/jvmMain/kotlin/Server.kt

@@ -1,16 +1,18 @@
-import io.ktor.application.*
-import io.ktor.features.*
 import io.ktor.http.*
-import io.ktor.http.content.*
-import io.ktor.request.*
-import io.ktor.response.*
-import io.ktor.routing.*
-import io.ktor.serialization.*
 import io.ktor.server.engine.*
 import io.ktor.server.netty.*
 import org.litote.kmongo.*
 import org.litote.kmongo.coroutine.*
 import com.mongodb.ConnectionString
+import io.ktor.server.application.*
+import io.ktor.server.http.content.*
+import io.ktor.server.plugins.compression.*
+import io.ktor.server.plugins.contentnegotiation.*
+import io.ktor.server.request.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+import io.ktor.serialization.kotlinx.json.*
+import io.ktor.server.plugins.cors.routing.*
 import org.litote.kmongo.reactivestreams.KMongo
 
 val connectionString: ConnectionString? = System.getenv("MONGODB_URI")?.let {
@@ -28,9 +30,9 @@ fun main() {
             json()
         }
         install(CORS) {
-            method(HttpMethod.Get)
-            method(HttpMethod.Post)
-            method(HttpMethod.Delete)
+            allowMethod(HttpMethod.Get)
+            allowMethod(HttpMethod.Post)
+            allowMethod(HttpMethod.Delete)
             anyHost()
         }
         install(Compression) {