Play framework 2.5 - scala oauth2 provider issue - mysql

WHAT I DID:
I am trying to implement oauth2 provider using Play framework. I am using the "scala-oauth2-provider" sample to do this. "https://github.com/nulab/scala-oauth2-provider"
I have listed the version that I used in my application:
Play -- 2.5
database -- Mysql 5.1.22
ISSUE:
AuthCode.scala:19: could not find implicit value for parameter tm:
scala.slick.ast.TypedType[org.joda.time.DateTime] [error] def
createdAt = columnDateTime
Code Snippet:
import java.util.UUID
import org.joda.time.DateTime
import scala.slick.driver.MySQLDriver.simple._
case class AuthCode(authorizationCode: String, userGuid: UUID, redirectUri: Option[String], createdAt: DateTime, scope: Option[String], clientId: Option[String], expiresIn: Int)
class AuthCodes(tag: Tag) extends Table[AuthCode](tag, "auth_codes") {
def authorizationCode = column[String]("authorization_code", O.PrimaryKey)
def userGuid = column[UUID]("user_guid")
def redirectUri = column[Option[String]]("redirect_uri")
def createdAt = column[DateTime]("created_at")
def scope = column[Option[String]]("scope")
def clientId = column[Option[String]]("client_id")
def expiresIn = column[Int]("expires_in")
def * = (authorizationCode, userGuid, redirectUri, createdAt, scope, clientId, expiresIn) <> (AuthCode.tupled, AuthCode.unapply)
}
How do I fix this issue? Can anyone help me to fix this issue?
Note: I have also tried the solution https://stackoverflow.com/a/22578950/1584121. But I am getting same issue :(

I didn't look into the sample project, but I used the solution available through https://github.com/tototoshi/slick-joda-mapper. Hopefully you can apply this to your code. I am using Scala 2.11.8 with Slick 3.1.1, and therefore use slick-joda-mapper 2.2.0. If you are using different versions of Scala and/or Slick, you might have to select a different version of slick-joda-mapper.
First add the required dependencies to your build.sbt:
libraryDependencies ++= Seq(
"com.typesafe.slick" %% "slick" % "3.1.1",
"org.slf4j" % "slf4j-nop" % "1.6.4",
"com.github.tototoshi" %% "slick-joda-mapper" % "2.2.0",
"joda-time" % "joda-time" % "2.7",
"org.joda" % "joda-convert" % "1.7"
)
In your Scala source file, use the following imports:
import slick.driver.MySQLDriver.api._
import scala.concurrent.ExecutionContext.Implicits.global
import com.github.tototoshi.slick.MySQLJodaSupport._
import org.joda.time.DateTime
You can then use a DateTime object simply in Slick queries.

Related

Play2 on Scala : JSON serialization/deserialization

I am new Play/Scala and started porting a Spring Boot RestAPI to Play2 as a learning exercise.
In Java/SpringRest ,its simply a matter of annotating POJOs and the JSon library handle the serialize/deserialization automatically.
According to every Play2/Scala tutorial I read, I have to write a Writer/Reader for each model/case class as follows
implicit val writesItem = Writes[ClusterStatus] {
case ClusterStatus(gpuFreeMemory, gpuTotalMemory, labelsLoaded, status) =>
Json.obj("gpuFreeMemory" -> gpuFreeMemory,
"gpuTotalMemory" -> gpuTotalMemory,
"labelsLoaded" -> labelsLoaded,
"status" -> status)
}
//HTTP method
def status() = Action { request =>
val status: ClusterStatus = clusterService.status()
Ok(Json.toJson(status))
}
This means If have a large domain model/response model, I have to write a lot of Writers/Readers for serialize/deserialization?
Is there any simpler way to handle this?
You can give a try to "com.typesafe.play" %% "play-json" % "2.7.2". For using that you just need to do the below steps:
1) Add below dependencies(Use version according to your project):
"com.typesafe.play" %% "play-json" % "2.7.2",
"net.liftweb" % "lift-json_2.11" % "2.6.2"
2) Define formats:
implicit val formats = DefaultFormats
implicit val yourCaseClassFormat= Json.format[YourCaseClass]
This format defines both read and writes for your case class.

Unresolved symbol column - Scala Slick

I'm currently trying to create a table using slick and I'm baffled as to what import I'm missing as the examples I've seen don't seem to have a relevant looking import in them.
Currently the column, question mark and the O's are all unresolved.
Could someone let me know what I'm doing wrong please?
Here is my table class:
package com.grimey.tabledefinitions
import slick.driver.MySQLDriver.api._
import com.grimey.staticpage.StaticPage
import slick.lifted.Tag
import slick.model.Table
class StaticPageDef(tag: Tag) extends Table[StaticPage](tag, "static_page") {
def id = column[Long]("id", O.PrimaryKey, O.AutoInc)
def pageType = column[String]("page_type")
def contentHtml = column[String]("content_html")
def * = (id.?, pageType, contentHtml) <>(StaticPage, StaticPage.unapply _)
}
And here is my build.sbt:
name := """grimey-cms"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayScala)
scalaVersion := "2.11.8"
libraryDependencies ++= Seq(
"mysql" % "mysql-connector-java" % "5.1.38",
"com.typesafe.play" %% "play-slick" % "2.0.0",
"com.typesafe.play" %% "play-slick-evolutions" % "2.0.0"
)
resolvers += "scalaz-bintray" at "http://dl.bintray.com/scalaz/releases"
fork in run := true
And finally, here is the case class I'm using for the table:
package com.grimey.staticpage
import java.time.LocalDateTime
case class StaticPage(id: Long, htmlContent: String, pageType: String,
created: LocalDateTime, updated: LocalDateTime)
I bet it's something really silly :)
The O object is from the table and it varies driver to driver. Some drivers may not support certain column options supported by others. Therefore you will need to import the column options that are specific to your database - MySQL in this case:
import slick.driver.MySQLDriver.api._
You may check this full tutorial on how to use Play + Slick + MySQL: http://pedrorijo.com/blog/play-slick/
Or you may just navigate through the code: https://github.com/pedrorijo91/play-slick3-steps

Cannot write an instance of play.api.libs.json.JsLookupResult to HTTP response. Try to define a Writable[play.api.libs.json.JsLookupResult]

I am upgrading Play Framework server from 2.2.2 to 2.4.4, as my application is working fine with old version, but while upgrading it is giving various errors like:
Cannot write an instance of play.api.libs.json.JsLookupResult to HTTP response. Try to define a Writable[play.api.libs.json.JsLookupResult]
Ok<gts<0>>
^
build.sbt:
name := """TestApp"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayJava)
//scalaVersion := "2.11.6"
//scalaVersion := "2.10.2"
libraryDependencies ++= Seq(
javaJdbc,
cache,
javaWs,
jdbc,
cache,
"com.typesafe.play" %% "anorm" % "2.4.0",
"com.google.inject" % "guice" % "4.0",
"javax.inject" % "javax.inject" % "1",
"org.reactivemongo" %% "reactivemongo" % "0.10.0",
"org.reactivemongo" %% "play2-reactivemongo" % "0.10.2",
"org.mockito" % "mockito-core" % "1.9.5" % "test",
"org.webjars" % "requirejs" % "2.1.1",
"org.postgresql" % "postgresql" % "9.4-1200-jdbc41",
"postgresql" % "postgresql" % "9.1-901.jdbc4",
"com.typesafe.play" % "play-iteratees_2.10" % "2.2.3",
"com.typesafe.slick" % "slick_2.10" % "2.1.0",
"com.typesafe.play" % "play-jdbc_2.10" % "2.4.4",
"org.apache.flume" % "flume-ng-core" % "1.5.2",
"org.apache.flume" % "flume-ng-sdk" % "1.5.2",
"org.scala-lang" % "scala-compiler" % "2.11.6"
)
app.scala:
package controllers
import play.modules.reactivemongo.MongoController
import play.modules.reactivemongo.json.collection.JSONCollection
import scala.concurrent.Future
import reactivemongo.api.Cursor
import play.api.libs.concurrent.Execution.Implicits.defaultContext
import javax.inject.Singleton
import play.api.mvc._
import play.api.libs.json._
#Singleton
class Application extends Controller with MongoController {
def collection: JSONCollection = db.collection[JSONCollection]("Test")
import models._
import models.JsonFormats._
import reactivemongo.bson._
def index = Action.async {
val cursor: Cursor[JsValue] = collection.
find(Json.obj()).
cursor[JsValue]
val futureUsersList: Future[List[JsValue]] = cursor.collect[List]()
val futurePersonsJsonArray: Future[JsArray] = futureUsersList.map { dao =>
Json.arr(dao)
}
futurePersonsJsonArray.map {
dao =>
Ok(dao(0))
}
}
}
Please let me know where I am doing wrong whether it is in my controller class or build.sbt ? Thanks in advance.
Indexing a JsArray does not return the JsValue at that index but a JsLookupResult, which is either JsDefined or JsUndefined (if, e.g, the index is out-of-bounds.) I think this changed in Play 2.3.
While you can write a JsValue directly to an HTTP response via the default JSON writeable provided by Play, there is no such writeable for a JsLookupResult. You can fix it by pattern matching on the JsLookupResult to extract the value, and handle its absence:
futurePersonsJsonArray.map { dao =>
dao(0).match {
case JsDefined(js) => Ok(js)
case _ => NotFound
}
}
or use toOption to get an Option[JsValue]:
futurePersonsJsonArray.map { dao =>
dao(0).toOption.map(js => Ok(js)).getOrElse(NotFound)
}
However, a better way to fix the code would be to use Json.toJson() directly on the redeemed result of futureUserList, rather than putting it in a JSON array, and then immediately taking it out again:
def index = Action.async {
val cursor: Cursor[JsValue] = collection.
find(Json.obj()).
cursor[JsValue]
val futureUsersList: Future[List[JsValue]] = cursor.collect[List]()
futureUsersList.map { list =>
Ok(Json.toJson(list))
}
}

Inserting into MySQL using slick

I have a table called "KLIJENTI" in MySQL database on ampps localhost server. Table consists of 4 columns: ID_KLIJENTA - int, IME_KLIJENTA - string, PREZIME_KLIJENTA - string and ADRESA_KLIJENTA - string.
I followed tutorials on how to use slick to insert into and read from database, but it does not do what I want.
Here is my application.conf:
scalaTest = {
url = "jdbc:mysql://localhost/Scala1"
user = "root"
password = "mysql"
driver = com.mysql.jdbc.Driver
connectionPool = disabled
keepAliveConnection = true
logStatements = true
}
build.sbt:
name := """project4"""
mainClass in Compile := Some("HelloSlick")
libraryDependencies ++= List(
"com.typesafe.slick" %% "slick" % "3.1.0-RC2",
"org.slf4j" % "slf4j-nop" % "1.7.10",
"com.h2database" % "h2" % "1.4.187",
"org.scalatest" %% "scalatest" % "2.2.4" % "test" ,
"mysql" % "mysql-connector-java" % "5.1.28"
)
fork in run := true
And here is my helloSlick.scala:
import scala.concurrent.{Future, Await}
import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.duration.Duration
import slick.backend.DatabasePublisher
import slick.driver.MySQLDriver.api._
case class Klijent(ID_KLIJENTA: Option[Int] = None, IME_KLIJENTA: String, PREZIME_KLIJENTA: String, ADRESA_KLIJENTA: String)
class Klijenti(tag: Tag) extends Table[Klijent](tag, "KLIJENTI") {
def ID_KLIJENTA = column[Option[Int]]("ID_KLIJENTA", O.PrimaryKey, O.AutoInc)
def IME_KLIJENTA = column[String]("IME_KLIJENTA")
def PREZIME_KLIJENTA = column[String]("PREZIME_KLIJENTA")
def ADRESA_KLIJENTA = column[String]("ADRESA_KLIJENTA")
def * = (ID_KLIJENTA, IME_KLIJENTA, PREZIME_KLIJENTA , ADRESA_KLIJENTA) <>((Klijent.apply _).tupled, Klijent.unapply)
}
// The main application
object HelloSlick extends App {
val db = Database.forConfig("scalaTest")
val mojiKlijenti = TableQuery[Klijenti]
val q1 = sql"select IME_KLIJENTA from KLIJENTI WHERE ID==1 ".as[String]
val q2 = mojiKlijenti.filter(_.ID_KLIJENTA === 0)
println(q1)
println(q2)
Before I run this code, I already inserted one row into the database through phpmyadmin, so both values q1 and q2 should print out real values but instead of that, I get this:
background log: info: Running HelloSlick
background log: info: slick.jdbc.SQLActionBuilder$$anon$1#56300388
background log: info: Rep(Filter #1636634026)
My apache webserver and mysql are turned on, just in case someone asks..
Why am I not getting the real values?
EDIT:> Later on, I tried to execute following command mojiKlijenti += Klijent(Some(5),"Name","Surname","Address") and again, it compiler successfully but when I check my database in phpmyadmin, no record is added..
You are not getting the real values because you need to convert the Query into an Action by calling its result method and execute it.
val action = q2.result
val results = db.run( action)
results.foreach( println )

How to create instance from Json when one of the constructor params is initialized by default?

The methods in ADSRegistrationMap are used to save and retrieve the document from MongoDB. ObjectId is created during initialization. I have to do the same to load Registration from Json that is part of POST body, so I thought I could just add ADSRegistrationProtocol object to do that. It fails with compilation error. Any idea on how to fix it or do this better?
package model
import spray.json._
import DefaultJsonProtocol._
import com.mongodb.casbah.Imports._
import org.bson.types.ObjectId
import com.mongodb.DBObject
import com.mongodb.casbah.commons.{MongoDBList, MongoDBObject}
case class Registration(
system: String,
identity: String,
id: ObjectId = new ObjectId())
object RegistrationProtocol extends DefaultJsonProtocol {
implicit val registrationFormat = jsonFormat2(Registration)
}
object RegistrationMap {
def toBson(registration: Registration): DBObject = {
MongoDBObject(
"system" -> registration.system,
"identity" -> registration.identity,
"_id" -> registration.id
)
}
def fromBson(o: DBObject): Registration = {
Registration(
system = o.as[String]("system"),
identity = o.as[String]("identity"),
id = o.as[ObjectId]("_id")
)
}
}
Compilation Error:
[error] /model/Registration.scala:20: type mismatch;
[error] found : model.Registration.type
[error] required: (?, ?) => ?
[error] Note: implicit value registrationFormat is not applicable here because it comes after the application point and it lacks an explicit result type
[error] implicit val registrationFormat = jsonFormat2(Registration)
[error] ^
[error] one error found
[error] (compile:compile) Compilation failed
Updated ObjectId to String and jsonFormat2 to jsonFormat3 to fix the compilation error.
case class Registration(
system: String,
identity: String,
id: String = (new ObjectId()).toString())
object RegistrationProtocol extends DefaultJsonProtocol {
implicit val registrationFormat = jsonFormat3(Registration)
}
Getting runtime error now when converting body of POST request to the Registration object. Any idea?
val route: Route = {
pathPrefix("registrations") {
pathEnd {
post {
entity(as[Registration]) { registration =>
Here is what is in build.sbt
scalaVersion := "2.10.4"
scalacOptions ++= Seq("-feature")
val akkaVersion = "2.3.8"
val sprayVersion = "1.3.1"
resolvers += "spray" at "http://repo.spray.io/"
resolvers += "Sonatype releases" at "https://oss.sonatype.org/content/repositories/releases"
// Main dependencies
libraryDependencies ++= Seq(
"com.typesafe.akka" %% "akka-actor" % akkaVersion,
"com.typesafe.akka" %% "akka-slf4j" % akkaVersion,
"com.typesafe.akka" %% "akka-camel" % akkaVersion,
"io.spray" % "spray-can" % sprayVersion,
"io.spray" % "spray-routing" % sprayVersion,
"io.spray" % "spray-client" % sprayVersion,
"io.spray" %% "spray-json" % sprayVersion,
"com.typesafe" % "config" % "1.2.1",
"org.apache.activemq" % "activemq-camel" % "5.8.0",
"ch.qos.logback" % "logback-classic" % "1.1.2",
"org.mongodb" %% "casbah" % "2.7.4"
)
Error:
12:33:03.477 [admcore-microservice-system-akka.actor.default-dispatcher-3] DEBUG s.can.server.HttpServerConnection - Dispatching POST request to http://localhost:8878/api/v1/adsregistrations to handler Actor[akka://admcore-microservice-system/system/IO-TCP/selectors/$a/1#-1156351415]
Uncaught error from thread [admcore-microservice-system-akka.actor.default-dispatcher-3] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[admcore-microservice-system]
java.lang.NoSuchMethodError: spray.json.JsonParser$.apply(Ljava/lang/String;)Lspray/json/JsValue;
at spray.httpx.SprayJsonSupport$$anonfun$sprayJsonUnmarshaller$1.applyOrElse(SprayJsonSupport.scala:36)
at spray.httpx.SprayJsonSupport$$anonfun$sprayJsonUnmarshaller$1.applyOrElse(SprayJsonSupport.scala:34)
To avoid any issue, I would define the Register class (which seems a data model) as follows
case class Register(system: String, identity: String, id: String)
That's because it makes more sense to me having an id field as String rather than as BSON ObjectId (I'm used to datamodel which don't depend on 3rd party libraries).
Therefore, the right SprayJson protocol would make use of jsonFormat3 rather than jsonFormat2:
object RegistrationProtocol extends DefaultJsonProtocol {
implicit val registrationFormat = jsonFormat3(Registration)
}
And that would solve any kind of JSON serialization issue.
Finally, your toBson and fromBson converters would be:
def toBson(r: Registration): DBObject = {
MongoDBObject(
"system" -> r.system,
"identity" -> r.identity,
"_id" -> new ObjectId(r.id)
)
}
and
def fromBson(o: DBObject): Registration = {
Registration(
system = o.as[String]("system"),
identity = o.as[String]("identity"),
id = o.as[ObjectId]("_id").toString
)
}
A that's where the BSON ObjectId is being used: much closer to the MongoDB dependant logic.