scaffold server with ktor as per issue #23

build.gradle.kts

@@ -33,6 +33,8 @@ subprojects {
     plugin("org.jetbrains.dokka")
   }
 
+
+
   tasks.withType<Detekt>().configureEach {
     jvmTarget = "1.8"
   }

http-server/build.gradle.kts

@@ -1,9 +1,11 @@
 plugins {
   id("org.jetbrains.kotlin.jvm")
   id("java-library")
+  id("idea")
 }
 
 version = "1.0"
+var ktorVersion = "2.3.4"
 
 repositories {
   mavenCentral()
@@ -14,8 +16,15 @@ repositories {
 
 dependencies {
   testImplementation(kotlin("test"))
+  testImplementation("io.ktor:ktor-server-test-host:$ktorVersion")
+  implementation("io.ktor:ktor-server-core:$ktorVersion")
+  implementation("io.ktor:ktor-server-netty:$ktorVersion")
+  implementation("io.ktor:ktor-serialization:$ktorVersion")
+
+
 }
 
+
 tasks.test {
   useJUnitPlatform()
 }

http-server/src/main/kotlin/Server.kt

@@ -0,0 +1,43 @@
+package tbdex.server
+
+import io.ktor.server.application.*
+import io.ktor.http.*
+import io.ktor.server.request.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+import io.ktor.server.engine.*
+import io.ktor.server.netty.*
+
+/**
+ * Main entrypoint of the executable that starts a Netty webserver at port 8080
+ * and registers the [module].
+ *
+ */
+
+fun main() {
+  embeddedServer(Netty, port = 8080) { module() }.start(wait = true)
+}
+
+fun Application.module() {
+  routing {
+    get("/") {
+      call.respondText { "hello world" }
+    }
+    post("/manual") {
+      // AF4GH is a sample code for demo purposes
+      call.response.header("Location", "/manual/AF4GH")
+      call.response.status(HttpStatusCode.Created)
+      call.respondText("Manually setting the location header")
+    }
+    post("/extension") {
+      // AF4GH is a sample code for demo purposes
+      call.response.created("AF4GH")
+      call.respondText("Extension setting the location header")
+    }
+  }
+}
+
+private fun ApplicationResponse.created(id: String) {
+  call.response.status(HttpStatusCode.Created)
+  call.response.header("Location", "${call.request.uri}/$id")
+}

http-server/src/test/kotlin/ServerTest.kt

@@ -0,0 +1,31 @@
+import io.ktor.server.application.*
+import io.ktor.http.*
+import io.ktor.server.testing.*
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+import tbdex.server.*
+
+class ServerTest {
+
+  @Test
+  fun `test manual route`() {
+    withTestApplication(Application::module) {
+      handleRequest(HttpMethod.Post, "/manual").apply {
+        assertEquals(HttpStatusCode.Created, response.status())
+        assertEquals("/manual/AF4GH", response.headers["Location"])
+        assertEquals("Manually setting the location header", response.content)
+      }
+    }
+  }
+
+  @Test
+  fun `test extension route`() {
+    withTestApplication(Application::module) {
+      handleRequest(HttpMethod.Post, "/extension").apply {
+        assertEquals(HttpStatusCode.Created, response.status())
+        assertEquals("/extension/AF4GH", response.headers["Location"])
+        assertEquals("Extension setting the location header", response.content)
+      }
+    }
+  }
+}