Error for first request

[Zoro]

Hello

I using Play 2.5.3, play2-reactivemongo 0.11.11 and mongod 3.2.6 with SCRAM-SHA-1

I have followed simple example on this page http://reactivemongo.org/releases/0.11/documentation/tutorial/play2.html

Application can record new person and show the list of all persons.

package controllers


import java.util.Date
import javax.inject.Inject


import play.api.libs.json.{JsArray, JsObject, Json}
import play.api.mvc._
import play.modules.reactivemongo.{MongoController, ReactiveMongoApi, ReactiveMongoComponents}
import reactivemongo.api.Cursor
import reactivemongo.play.json._
import reactivemongo.play.json.collection.JSONCollection


import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.Future


class Application @Inject()(
  val reactiveMongoApi: ReactiveMongoApi
) extends Controller with MongoController with ReactiveMongoComponents {


  def collection: JSONCollection = reactiveMongoApi.db.collection[JSONCollection]("persons")


  def index = Action {
    Ok("works")
  }


  def create(name: String, age: Int) = Action.async {
    val json = Json.obj(
      "name" -> name,
      "age" -> age,
      "created" -> new Date().getTime()
    )
    collection.insert(json).map(lastError =>
      Ok("Mongo LastError: %s".format(lastError)))
  }


  def findByName(name: String) = Action.async {
    val cursor: Cursor[JsObject] = collection.
      find(Json.obj("name" -> name)).
      sort(Json.obj("created" -> -1)).
      cursor[JsObject]


    val futurePersonsList: Future[List[JsObject]] = cursor.collect[List]()


    val futurePersonsJsonArray: Future[JsArray] =
      futurePersonsList.map { persons => Json.arr(persons) }


    futurePersonsJsonArray.map { persons =>
      Ok(persons)
    }


  }

}

routes file

# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~


# Home page
GET     /                           controllers.Application.index
GET     /create                     controllers.Application.create(name ?= "noname", age:Int ?= 0)
GET     /list                       controllers.Application.findByName(name ?= "noname")


# Map static resources from the /public folder to the /assets URL path
GET     /assets/*file               controllers.Assets.at(path="/public", file)

After start home page (/) loading without a problem. When i try load /create (first write to DB) first time, i get 

[ConnectionNotInitialized: MongoError['Connection is missing metadata (like protocol version, etc.) The connection pool is probably being initialized.']]

After refresh the page, all works as expected. What could be a problem?

I tested it a lot. If i load /list first, and then /create, i also don't have error.

If i change application.conf from

mongodb.uri = "mongodb://test:gfhjkm@localhost:27017/test?authMode=scram-sha1"

to 

mongodb.uri = "mongodb://test:gfhjkm@localhost:27017/test"

i get error every time i try load /create, and never when load /list.

Full code here https://github.com/n0tel/reactivemongo-test. Just create test database with test user and "gfhjkm" password for reproduce.

I appreciate any help 

[Cédric Chantepie]

Use reactiveMongoApi.database (which returns a `Future[DefaultDB]` to be composed with your ops) rather than `reactiveMongoApi.db` (which will be deprecated).

[Хандрамай Павел]

Thanks! It works.

On Thu, Jun 2, 2016 at 10:17 AM, Cédric Chantepie <chantep...@gmail.com> wrote:

Use reactiveMongoApi.database (which returns a `Future[DefaultDB]` to be composed with your ops) rather than `reactiveMongoApi.db` (which will be deprecated).

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С уважением,

Хандрамай Павел Александрович