fix: configure jackson properly for ktor http client json serialization

Author: osoykan

gradle/libs.versions.toml

@@ -52,6 +52,7 @@ couchbase-client-metrics = { module = "com.couchbase.client:metrics-micrometer",
 jackson-kotlin = { module = "com.fasterxml.jackson.module:jackson-module-kotlin", version.ref = "jackson" }
 jackson-databind = { module = "com.fasterxml.jackson.core:jackson-databind", version.ref = "jackson" }
 jackson-arrow = { module = "io.arrow-kt:arrow-integrations-jackson-module", version = "0.14.1" }
+jackson-jsr310 = { module = "com.fasterxml.jackson.datatype:jackson-datatype-jsr310", version.ref = "jackson" }
 slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
 slf4j-simple = { module = "org.slf4j:slf4j-simple", version.ref = "slf4j" }
 ktor-server-host-common = { module = "io.ktor:ktor-server-host-common", version.ref = "ktor" }

lib/stove-testing-e2e-http/build.gradle.kts

@@ -10,4 +10,5 @@ dependencies {
     implementation(libs.ktor.client.content.negotiation)
     implementation(libs.ktor.serialization.jackson.json)
     testImplementation(projects.lib.stoveTestingE2eWiremock)
+    testImplementation(libs.jackson.jsr310)
 }

lib/stove-testing-e2e-http/src/main/kotlin/com/trendyol/stove/testing/e2e/http/HttpSystem.kt

@@ -268,13 +268,7 @@ class HttpSystem(
         }
 
         install(ContentNegotiation) {
-            jackson {
-                setTypeFactory(objectMapper.typeFactory)
-                setConfig(objectMapper.deserializationConfig)
-                setConfig(objectMapper.serializationConfig)
-                setSerializerFactory(objectMapper.serializerFactory)
-                setNodeFactory(objectMapper.nodeFactory)
-            }
+            register(ContentType.Application.Json, JacksonConverter(objectMapper))
         }
 
         defaultRequest {

lib/stove-testing-e2e-http/src/test/kotlin/com/trendyol/stove/testing/e2e/http/HttpSystemTests.kt

@@ -3,12 +3,14 @@ package com.trendyol.stove.testing.e2e.http
 import arrow.core.*
 import com.github.tomakehurst.wiremock.client.WireMock.*
 import com.github.tomakehurst.wiremock.matching.MultipartValuePattern
+import com.trendyol.stove.testing.e2e.serialization.StoveObjectMapper
 import com.trendyol.stove.testing.e2e.system.TestSystem
 import com.trendyol.stove.testing.e2e.system.abstractions.ApplicationUnderTest
 import com.trendyol.stove.testing.e2e.wiremock.*
 import io.kotest.core.config.AbstractProjectConfig
 import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.shouldBe
+import java.time.Instant
 import java.util.*
 
 class NoApplication : ApplicationUnderTest<Unit> {
@@ -25,7 +27,13 @@ class TestConfig : AbstractProjectConfig() {
     override suspend fun beforeProject(): Unit =
         TestSystem("http://localhost:8086")
             .with {
-                httpClient()
+                httpClient {
+                    HttpClientSystemOptions(
+                        objectMapper = StoveObjectMapper.byConfiguring {
+                            findAndRegisterModules()
+                        }
+                    )
+                }
 
                 wiremock {
                     WireMockSystemOptions(8086)
@@ -235,8 +243,28 @@ class HttpSystemTests : FunSpec({
             }
         }
     }
+
+    test("java time instant should work") {
+        val expectedGetDtoName = UUID.randomUUID().toString()
+        TestSystem.validate {
+            wiremock {
+                mockGet("/get", 200, responseBody = TestDtoWithInstant(expectedGetDtoName, Instant.now()).some())
+            }
+
+            http {
+                get<TestDtoWithInstant>("/get") { actual ->
+                    actual.name shouldBe expectedGetDtoName
+                }
+            }
+        }
+    }
 })
 
 data class TestDto(
     val name: String
 )
+
+data class TestDtoWithInstant(
+    val name: String,
+    val instant: Instant
+)