I’m trying to create a Post request path using the Akka HTTP Server and the Scala programming language.

After I successfully make and receive the post request data, I would like to access the value of the country field inside the device parameter.

What is the best way to access this parameter?

I am using SprayJSON as the marshaller.

The current code gives the error Found: Option[Option[String]] Required: String.

Again, the request is processed successfully, I just can’t figure out how to access the value of the country field inside the device parameter.

The code is as below.

The case classes:

case class Geo(country: Option[String])

case class Device(id: String, geo: Option[Geo])

case class dataRequest(id: String, device: Option[Device])

The Post Request path:

Path(“submit”) {
   Post {
    Entity(as[dataRequest]) { data_request_params =>
 data_request_params.device.map(dev => dev.geo.map(geo => {
val geoDevice = geo.country
}))

    }
  }
}

The request body:

{
 “id”: “fghq1I123”,
 “device”: {
       “id”: “0004a672f”,
       “geo”: {
               “Country”: “AU”
       }
  }
}