Second day's work

app/controllers/DocumentController.scala

@@ -1,8 +1,9 @@
 package controllers
 
+import akka.actor.Status.Success
 import javax.inject.Inject
 import models.DocumentRepository
-import play.api.libs.json.Json
+import play.api.libs.json.{JsValue, Json}
 import play.api.mvc._
 
 import scala.concurrent.ExecutionContext
@@ -11,4 +12,19 @@ class DocumentController @Inject()(cc: ControllerComponents, documentRepository:
   def index = Action.async { implicit request =>
     documentRepository.list().map(documents => Ok(Json.toJson(documents)))
   }
+
+  def getById(id: Long) = Action.async { implicit request =>
+    documentRepository.getById(id).map(document => Ok(Json.toJson(document)))
+  }
+
+  def createDocument = Action.async(parse.json) { implicit request: Request[JsValue] =>
+    documentRepository.create(
+      (request.body \ "title").toString,
+      (request.body \ "body").toString
+    ).map(document => Created(Json.toJson(document)))
+  }
+
+  def testz = Action.async { implicit request =>
+    documentRepository.list().map(documents => Ok(Json.toJson(documents)))
+  }
 }

app/models/Document.scala

@@ -1,9 +1,22 @@
 package models
 
 import play.api.libs.json._
+import play.api.libs.json.Writes._
+import play.api.libs.functional.syntax._
 
-case class Document(id: Long, title: String, body: String)
+case class Document(id: Long, title: String, body: String) {
+  def hashtags = {
+    """#(\w+)""".r.findAllIn(body).matchData.map(_.group(1).toLowerCase).toList
+  }
+}
 
 object Document {
-  implicit val documentFormat = Json.format[Document]
+  implicit val documentWrites: Writes[Document] = (
+      (JsPath \ "id").write[Long] and
+      (JsPath \ "title").write[String] and
+      (JsPath \ "body").write[String] and
+      (JsPath \ "hashtags").write[List[String]]
+    )((d: Document) => (d.id, d.title, d.body, d.hashtags))
+
+  //implicit val documentFormat = Json.format[Document]
 }

app/models/DocumentRepository.scala

@@ -26,6 +26,10 @@ class DocumentRepository @Inject() (dbConfigProvider: DatabaseConfigProvider)(im
     documents.result
   }
 
+  def getById(id: Long) = db.run {
+    documents.filter(_.id === id).result.head
+  }
+
   def create(title: String, body: String): Future[Document] = db.run {
     (
       documents.map(p => (p.title, p.body))
@@ -34,4 +38,11 @@ class DocumentRepository @Inject() (dbConfigProvider: DatabaseConfigProvider)(im
      ) += (title, body)
   }
 
+  def deleteAll() = db.run{
+    documents.delete
+  }
+
+  def resetAutoInc() = db.run {
+    sqlu"ALTER TABLE documents AUTO_INCREMENT=1;"
+  }
 }

conf/routes

@@ -2,4 +2,6 @@
 # This file defines all application routes (Higher priority routes first)
 # https://www.playframework.com/documentation/latest/ScalaRouting
 #
-GET /documents controllers.DocumentController.index
+GET /documents controllers.DocumentController.index
+GET /documents/:id controllers.DocumentController.getById(id: Long)
+POST /documents controllers.DocumentController.createDocument

test/controllers/DocumentControllerSpec.scala

@@ -11,7 +11,9 @@ import play.api.inject.guice.GuiceApplicationBuilder
 import play.api.test._
 import play.api.test.Helpers._
 
-import scala.concurrent.Await
+import slick.jdbc.MySQLProfile.api._
+
+import scala.concurrent.{Await, ExecutionContext}
 import scala.concurrent.duration._
 
 /*
@@ -32,27 +34,19 @@ class DocumentControllerSpec extends PlaySpec
     .build()
     .injector
   val documentRepository = injector.instanceOf[DocumentRepository]
+  implicit val ec = ExecutionContext.global
 
   override def beforeEach() {
-    Await.ready(
-      documentRepository.create(
+    Await.ready(documentRepository.deleteAll, 10 seconds)
+    Await.ready(documentRepository.resetAutoInc(), 5 seconds)
+    Await.ready(documentRepository.create(
       "Quarkus, a Kubernetes Native Java Framework",
-     "Red Hat has released #Quarkus, a #Kubernetes native #Java framework tailored for GraalVM and OpenJDK HotSpot."
-      ),
-      10 seconds
-   )
-    Await.ready(
-      documentRepository.create(
-        "Java 11 Released",
-       "#Java 11 has arrived. The new release is the first planned appearance of #Oracle's #LTS releases, although #Oracle has also grandfathered in Java 8 as an LTS release to help bridge the gap between the old release model and the new approach."
-      ),
-      10 seconds
-    )
-  /*
-   * Note that you typically do not need to provide an id when creating database records through an ORM or any other access layer.
-   * create Document(id = 1, title = "Quarkus, a Kubernetes Native Java Framework", body = "Red Hat has released #Quarkus, a #Kubernetes native #Java framework tailored for GraalVM and OpenJDK HotSpot.")
-   * create Document(id = 2, title = "Java 11 Released", body = "#Java 11 has arrived. The new release is the first planned appearance of #Oracle's #LTS releases, although #Oracle has also grandfathered in Java 8 as an LTS release to help bridge the gap between the old release model and the new approach.")
-   */
+      "Red Hat has released #Quarkus, a #Kubernetes native #Java framework tailored for GraalVM and OpenJDK HotSpot."
+    ), 5 seconds)
+    Await.ready(documentRepository.create(
+      "Java 11 Released",
+      "#Java 11 has arrived. The new release is the first planned appearance of #Oracle's #LTS releases, although #Oracle has also grandfathered in Java 8 as an LTS release to help bridge the gap between the old release model and the new approach."
+    ), 5 seconds)
   }
 
   "GET /documents" should {
@@ -99,7 +93,7 @@ class DocumentControllerSpec extends PlaySpec
       val result = route(app, FakeRequest(GET, "/documents/1")).get
       val responseBody = contentAsString(result)
 
-      responseBody must include(""""hashtags": ["quarkus", "kubernetes", "java"]""")
+      responseBody must include(""""hashtags":["quarkus","kubernetes","java"]""")
     }
   }
 
@@ -111,25 +105,19 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey",
-          |  "body":  "After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey","body":"After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."}"""
         )).get
       status(result) mustBe CREATED
     }
 
-    "return JSON" in {
+    n "return JSON" in {
       val result = route(
         app,
         FakeRequest(
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey",
-          |  "body":  "After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey","body":"After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."}"""
         )).get
       contentType(result) mustBe Some("application/json")
     }
@@ -141,10 +129,7 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey",
-          |  "body":  "After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey","body":"After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."}"""
         )).get
       contentAsString(result) must include("Mashreq Bank’s Lean Agile Journey")
     }
@@ -156,12 +141,9 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey",
-          |  "body":  "After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey","body":"After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."}"""
         )).get
-      contentAsString(result) must include(""""hashtags": ["lean", "agile"]""")
+      contentAsString(result) must include(""""hashtags":["lean","agile"]""")
     }
 
     "add the document to the database" in {
@@ -171,10 +153,7 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey",
-          |  "body":  "After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey","body":"After having seen and evidenced the tangible benefit of #lean at Mashreq Bank, #agile was seen as a natural progression, an evolutionary step."}"""
         )).get
       status(result) mustBe CREATED
       val indexResult = route(app, FakeRequest(GET, "/documents")).get
@@ -190,9 +169,7 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey"
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey"}"""
         )).get
       status(result) mustBe BAD_REQUEST
     }
@@ -204,9 +181,7 @@ class DocumentControllerSpec extends PlaySpec
           POST,
           "/documents",
           FakeHeaders(List("HOST"->"localhost", "Content-type"->"application/json")),
-          """{
-          |  "title": "Mashreq Bank’s Lean Agile Journey"
-          |}"""
+          """{"title":"Mashreq Bank’s Lean Agile Journey"}"""
         )).get
       status(result) mustBe BAD_REQUEST
       val indexResult = route(app, FakeRequest(GET, "/documents")).get