Represent nested parameters for Neo4j query in Scala - scala

Question

I tried to run Neo4j queries with parameters in the form of the Map[String, Anyref] which works just fine. However, I would like to send the data to Neo4j in form of the batch so the result would be Map[String, Map[String,AnyRef]] or Map[String, AnyRef] if the data is converted. But overall I would like to set the data in such a way:
{
"nodes": [
{
"id": 193331567,
"lat": 40.7599983215332,
"lon": -73.98999786376953
},
{
"id": 173062762,
"lat": 41.959999084472656,
"lon": -87.66000366210938
},
{
"id": 66276172,
"lat": 40.72999954223633,
"lon": -74.01000213623047
}
]
}
I wrote it in Scala using nested maps, however, when I pass this nested maps as a parameter to the query it cannot be rendered by Neo4j. So how can I represent this nested JSON structure in Scala? Should I use and Object instead or something like that?
Here is the map I set up:
val paramsList = Map("nodes" -> {
data map { seq =>
Map(
"lat" -> seq(1).toDouble.asInstanceOf[AnyRef],
"lon" -> seq(2).toDouble.asInstanceOf[AnyRef],
"id" -> seq(0).toInt.asInstanceOf[AnyRef]
)
}}.asInstanceOf[AnyRef])
val queryResults = neo4jSession.run(neo4jQuery, params.asJava)

Answer 1

It was important to convert both maps to java.util.Map so Neo4j would be able to pass this data as a parameter.
val paramsList = data map { seq =>
Map(
"lat" -> seq(1).toDouble.asInstanceOf[AnyRef],
"lon" -> seq(2).toDouble.asInstanceOf[AnyRef],
"id" -> seq(0).toInt.asInstanceOf[AnyRef]
).asJava.asInstanceOf[AnyRef]
}
val queryResults = neo4jSession.run(neo4jQueries.searchQueryWithBatchParams, Map("nodes" -> paramsList.asJava.asInstanceOf[AnyRef]).asJava)