Question

I’m getting an error on compile with the following code.
I’m trying to call a Web Service.

def authenticate(username: String, password: String): String = {
    val request: Future[Response] = 
      WS.url(XXConstants.URL_GetTicket)
          .withTimeout(5000)
          .post( Map("username" -> Seq(username), "password" -> Seq(password) ) )            
      request map { response => 
        Ok(response.xml.text)
      } recover {
        case t: TimeoutException => 
          RequestTimeout(t.getMessage)
        case e =>
          ServiceUnavailable(e.getMessage)
      }

}

I’m seeing the following compiler error:

 type mismatch; found : scala.concurrent.Future[play.api.mvc.SimpleResult[String]] required: String

Answer 1

The value being returned from your authenticate function is val request = ... which is of type Future[Response] but the function expects a String which as the compiler says is a type mismatch error. Changing the return type of the function to Future[Response] or converting request to a String before returning it should fix it.