update to latest version and also add gradle support

README.md

@@ -42,7 +42,7 @@ Key ingredients for coroutines
 
 - Insert User
 ```
-curl -X POST -H "Content-Type: application/json" -d '{"id":null,"username":"JackRabbit","email":"Jack@Rabbit.com","avatarUrl":null}'  http://localhost:8080/users/
+curl -X POST -H "Content-Type: application/json" -d '{"id":null,"userName":"JackRabbit","email":"Jack@Rabbit.com","avatarUrl":null}'  http://localhost:8080/users/
 ```
 
 - Sync avatar
@@ -72,3 +72,13 @@ gob  -c 100 -n 500 -k http://localhost:8080/blocking/users/3/sync-avatar
 
 https://stackoverflow.com/questions/35628764/completablefuture-vs-spring-transactions
 
+
+# Coroutines with blocking calls. restTemplate
+## case 1 - blocking, spring.threads.virtual.enabled:false
+```shell
+echo -n '{"id":null,"userName":"JackRabbit","email":"Jack@Rabbit.com","avatarUrl":null}' | http POST http://localhost:8080/users/with-blocking\?delay\=200 --meta
+Elapsed time: 0.443338084s
+```
+
+## case 2 - blocking, spring.threads.virtual.enabled:true
+```shell

build.gradle.kts

@@ -0,0 +1,71 @@
+import org.jetbrains.kotlin.gradle.dsl.KotlinCompile
+
+@Suppress("DSL_SCOPE_VIOLATION")
+plugins {
+    alias(libs.plugins.org.jetbrains.kotlin.plugin.spring) // org.jetbrains.kotlin:kotlin-allopen
+    alias(libs.plugins.org.jetbrains.kotlin.jvm)
+    alias(libs.plugins.org.jetbrains.kotlin.plugin.jpa) // all open for Entity classes
+    alias(libs.plugins.org.springframework.boot)
+    alias(libs.plugins.io.spring.dependency.management)
+    alias(libs.plugins.org.jetbrains.kotlinx.kover)
+    alias(libs.plugins.com.linecorp.build.recipe.plugin)
+//    alias(libs.plugins.org.jlleitschuh.gradle.ktlint)
+}
+
+repositories {
+    mavenLocal()
+    maven {
+        url = uri("https://repo.spring.io/snapshot")
+    }
+
+    maven {
+        url = uri("https://repo.spring.io/milestone")
+    }
+
+    maven {
+        url = uri("https://repo.maven.apache.org/maven2/")
+    }
+}
+
+dependencies {
+    implementation(libs.org.springframework.boot.spring.boot.starter.data.jpa)
+    implementation(libs.org.springframework.boot.spring.boot.starter.data.r2dbc)
+    implementation(libs.org.springframework.boot.spring.boot.starter.webflux)
+    implementation(libs.com.fasterxml.jackson.module.jackson.module.kotlin)
+    implementation(libs.io.projectreactor.kotlin.reactor.kotlin.extensions)
+    implementation(libs.org.jetbrains.kotlin.kotlin.reflect)
+    implementation(libs.org.jetbrains.kotlinx.kotlinx.coroutines.reactor)
+
+    implementation(libs.io.r2dbc.r2dbc.h2)
+    implementation(libs.io.r2dbc.r2dbc.spi)
+    implementation(libs.org.jetbrains.kotlinx.kotlinx.coroutines.slf4j)
+
+    testImplementation(libs.io.projectreactor.reactor.test)
+    testImplementation(libs.io.kotlintest.kotlintest.assertions)
+    testImplementation(libs.org.springframework.boot.spring.boot.starter.test)
+    testImplementation(libs.org.junit.jupiter.junit.jupiter.api)
+    testImplementation(libs.org.junit.jupiter.junit.jupiter.engine)
+    testImplementation(libs.org.jetbrains.kotlin.kotlin.test.junit5)
+}
+
+group = "org.up"
+version = "1.0.0"
+description = "spring-boot-kotlin"
+java.sourceCompatibility = JavaVersion.VERSION_21
+
+kotlin {
+    jvmToolchain {
+        languageVersion.set(JavaLanguageVersion.of(21))
+    }
+}
+
+tasks {
+    compileKotlin {
+        kotlinOptions {
+            freeCompilerArgs = listOf("-Xjsr305=strict")
+        }
+    }
+    test {
+        useJUnitPlatform()
+    }
+}

gradle/libs.versions.toml

@@ -0,0 +1,64 @@
+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
+
+[plugins]
+
+org-springframework-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }
+
+io-spring-dependency-management = { id = "io.spring.dependency-management", version = "1.1.4" }
+
+org-jetbrains-kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+
+org-jetbrains-kotlin-plugin-spring = { id = "org.jetbrains.kotlin.plugin.spring", version.ref = "kotlin" }
+org-jetbrains-kotlin-plugin-jpa = { id = "org.jetbrains.kotlin.plugin.jpa", version.ref = "kotlin" }
+
+com-linecorp-build-recipe-plugin = { id = "com.linecorp.build-recipe-plugin", version = "1.1.1" }
+
+org-jetbrains-kotlinx-kover = { id = "org.jetbrains.kotlinx.kover", version = "0.7.5" }
+
+org-jlleitschuh-gradle-ktlint = { id = "org.jlleitschuh.gradle.ktlint", version = "12.1.0" }
+
+[versions]
+
+com-fasterxml-jackson-module-jackson-module-kotlin = "2.16.1"
+io-kotlintest-kotlintest-assertions = "3.4.2"
+io-projectreactor-reactor-test = "3.6.2"
+io-r2dbc-r2dbc-h2 = "1.0.0.RELEASE"
+io-r2dbc-r2dbc-spi = "1.0.0.RELEASE"
+
+io-projectreactor-kotlin-reactor-kotlin-extensions = "1.2.2"
+
+spring-boot = "3.2.2"
+
+kotlin = "1.9.22"
+
+org-springframework-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }
+
+io-spring-dependency-management = { id = "io.spring.dependency-management", version = "1.1.0" }
+
+org-jetbrains-kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+
+org-jetbrains-kotlin-plugin-spring = { id = "org.jetbrains.kotlin.plugin.spring", version.ref = "kotlin" }
+
+[libraries]
+
+com-fasterxml-jackson-module-jackson-module-kotlin = { module = "com.fasterxml.jackson.module:jackson-module-kotlin", version.ref = "com-fasterxml-jackson-module-jackson-module-kotlin" }
+io-kotlintest-kotlintest-assertions = { module = "io.kotlintest:kotlintest-assertions", version.ref = "io-kotlintest-kotlintest-assertions" }
+io-projectreactor-reactor-test = { module = "io.projectreactor:reactor-test", version.ref = "io-projectreactor-reactor-test" }
+io-r2dbc-r2dbc-h2 = { module = "io.r2dbc:r2dbc-h2", version.ref = "io-r2dbc-r2dbc-h2" }
+io-r2dbc-r2dbc-spi = { module = "io.r2dbc:r2dbc-spi", version.ref = "io-r2dbc-r2dbc-spi" }
+org-jetbrains-kotlin-kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect" }
+org-jetbrains-kotlin-kotlin-script-runtime = { module = "org.jetbrains.kotlin:kotlin-script-runtime" }
+org-jetbrains-kotlin-kotlin-test-junit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5" }
+org-jetbrains-kotlinx-kotlinx-coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core" }
+org-jetbrains-kotlinx-kotlinx-coroutines-jdk8 = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-jdk8" }
+org-jetbrains-kotlinx-kotlinx-coroutines-reactor = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-reactor" }
+org-jetbrains-kotlinx-kotlinx-coroutines-slf4j = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-slf4j" }
+
+org-junit-jupiter-junit-jupiter-api = { module = "org.junit.jupiter:junit-jupiter-api" }
+org-junit-jupiter-junit-jupiter-engine = { module = "org.junit.jupiter:junit-jupiter-engine" }
+org-springframework-boot-spring-boot-starter-data-jpa = { module = "org.springframework.boot:spring-boot-starter-data-jpa" }
+org-springframework-boot-spring-boot-starter-data-r2dbc = { module = "org.springframework.boot:spring-boot-starter-data-r2dbc" }
+org-springframework-boot-spring-boot-starter-test = { module = "org.springframework.boot:spring-boot-starter-test" }
+org-springframework-boot-spring-boot-starter-webflux = { module = "org.springframework.boot:spring-boot-starter-webflux" }
+io-projectreactor-kotlin-reactor-kotlin-extensions = { module = "io.projectreactor.kotlin:reactor-kotlin-extensions", version.ref = "io-projectreactor-kotlin-reactor-kotlin-extensions" }