Migrate to Ktor 2

buildSrc/src/main/kotlin/Versions.kt

@@ -4,7 +4,7 @@ object Versions {
     const val kotlinBenchmark = "0.3.1"
     const val kotlinCoroutines = "1.5.2"
     const val kotlinCoroutinesTest = "1.5.2"
-    const val ktor = "1.5.4"
+    const val ktor = "2.0.0-beta-1"
     const val logback = "1.2.3"
     const val versionsPlugin = "0.39.0"
 }

example/build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
 }
 
 application {
-    mainClass.set("io.ktor.server.netty.EngineMain")
+    mainClass.set("com.github.michaelbull.result.example.ApplicationKt")
 }
 
 dependencies {
@@ -14,8 +14,9 @@ dependencies {
     implementation(kotlin("stdlib-jdk8"))
     implementation("ch.qos.logback:logback-classic:${Versions.logback}")
     implementation("io.ktor:ktor-server-core:${Versions.ktor}")
+    implementation("io.ktor:ktor-server-content-negotiation:${Versions.ktor}")
+    implementation("io.ktor:ktor-serialization-jackson:${Versions.ktor}")
     implementation("io.ktor:ktor-server-netty:${Versions.ktor}")
-    implementation("io.ktor:ktor-gson:${Versions.ktor}")
 }
 
 tasks.withType(KotlinCompile::class.java).all {

example/src/main/kotlin/com/github/michaelbull/result/example/Application.kt

@@ -1,5 +1,6 @@
 package com.github.michaelbull.result.example
 
+import com.fasterxml.jackson.databind.SerializationFeature
 import com.github.michaelbull.result.Result
 import com.github.michaelbull.result.andThen
 import com.github.michaelbull.result.example.model.domain.Created
@@ -28,32 +29,37 @@ import com.github.michaelbull.result.example.repository.InMemoryCustomerReposito
 import com.github.michaelbull.result.example.service.CustomerService
 import com.github.michaelbull.result.mapBoth
 import com.github.michaelbull.result.toResultOr
-import io.ktor.application.Application
-import io.ktor.application.call
-import io.ktor.application.install
-import io.ktor.features.CallLogging
-import io.ktor.features.Compression
-import io.ktor.features.ContentNegotiation
-import io.ktor.features.DefaultHeaders
-import io.ktor.gson.gson
 import io.ktor.http.HttpStatusCode
 import io.ktor.http.Parameters
-import io.ktor.request.receive
+import io.ktor.serialization.jackson.jackson
-import io.ktor.response.respond
+import io.ktor.server.application.Application
-import io.ktor.routing.get
+import io.ktor.server.application.call
-import io.ktor.routing.post
+import io.ktor.server.application.install
-import io.ktor.routing.routing
+import io.ktor.server.engine.embeddedServer
+import io.ktor.server.netty.Netty
+import io.ktor.server.plugins.ContentNegotiation
+import io.ktor.server.request.receive
+import io.ktor.server.response.respond
+import io.ktor.server.routing.get
+import io.ktor.server.routing.post
+import io.ktor.server.routing.routing
 
-fun Application.main() {
+fun main() {
-    install(DefaultHeaders)
+    embeddedServer(Netty, port = 8080, host = "0.0.0.0") {
-    install(Compression)
+        configureRouting()
-    install(CallLogging)
+        configureSerialization()
+    }.start(wait = true)
+}
+
+fun Application.configureSerialization() {
     install(ContentNegotiation) {
-        gson {
+        jackson {
-            setPrettyPrinting()
+            enable(SerializationFeature.INDENT_OUTPUT)
+        }
     }
 }
 
+fun Application.configureRouting() {
     val customers = setOf(
         CustomerEntity(CustomerId(1L), "Michael", "Bull", "michael@example.com"),
         CustomerEntity(CustomerId(2L), "Kevin", "Herron", "kevin@example.com"),
@@ -86,7 +92,6 @@ fun Application.main() {
             }
         }
     }
-
 }
 
 private fun Parameters.readId(): Result<Long, DomainMessage> {

example/src/main/kotlin/com/github/michaelbull/result/example/model/domain/PersonalName.kt

@@ -1,24 +1,6 @@
 package com.github.michaelbull.result.example.model.domain
 
-import com.github.michaelbull.result.Err
-import com.github.michaelbull.result.Ok
-import com.github.michaelbull.result.Result
-
 data class PersonalName(
     val first: String,
     val last: String
 )
-
-private const val MAX_LENGTH = 10
-
-fun Pair<String?, String?>.toPersonalName(): Result<PersonalName, DomainMessage> {
-    val (first, last) = this
-
-    return when {
-        first.isNullOrBlank() -> Err(FirstNameRequired)
-        last.isNullOrBlank() -> Err(LastNameRequired)
-        first.length > MAX_LENGTH -> Err(FirstNameTooLong)
-        last.length > MAX_LENGTH -> Err(LastNameTooLong)
-        else -> Ok(PersonalName(first, last))
-    }
-}