The basic library example doesn't work

[rullyalves]

I tried this code example:

val schema =
"""
type Person {
name: ID!
age: Int
}
# Optional if you use generated queries
type Query {
person : [Person]
}"""

val query = """ quero { person { age } } """

val schema = SchemaBuilder.buildSchema(idl)
val ctx = QueryContext()
val (cypher, params) = Translator(schema).translate(query, mapOf(), ctx)

// generated Cypher
cypher == "MATCH (p:Person) WHERE p.name = $pName RETURN p {.age} as p"

but i get an error about GraphQLDefaultValueArgument,
I would like to know if I am doing something wrong and if this library can be used solely to translate graphql queries into cypher queries.

[Andy2003]

I cant see any problem with your example:

package demo

import org.neo4j.graphql.QueryContext
import org.neo4j.graphql.SchemaBuilder
import org.neo4j.graphql.Translator

fun main() {
    val idl = """
    type Person {
        name: ID!
        age: Int
    }
    # Optional if you use generated queries
    type Query {
        person : [Person]
    }
    """.trimIndent()

    val query = """ query { person { age } } """

    val schema = SchemaBuilder.buildSchema(idl)
    val ctx = QueryContext()
    val (cypher) = Translator(schema).translate(query, mapOf(), ctx).first()

    // prints: MATCH (person:Person) RETURN person { .age } AS person
    println(cypher)
}