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package kotlinx.serialization.json.parser.examples
import kotlinx.serialization.json.*
data class User(val id: Int, val name: String, val address: UserAddress?, val bag: UserProperties)
data class UserAddress(val country: String, val city: String?, val zipCode: Int?, val metadata: List<String>)
// Just bag of properties
data class UserProperties(val flag: Boolean, val int: Int, val double: Double, val nullableFlag: Boolean?)
object UserAddressParser : JsonParser<UserAddress>() {
override fun write(value: UserAddress) = json {
"country" to value.country
"city" to value.city
"zipCode" to value.zipCode
"metadata" to JsonArray(value.metadata.map { JsonLiteral(it) })
}
override fun read(json: JsonObject): UserAddress {
val country = json.getValue("country").content
val city = json["city"]?.contentOrNull
val zipCode = json["zipCode"]?.intOrNull
val metadata = json.getValue("metadata").jsonArray.map { it.content }
return UserAddress(country, city, zipCode, metadata)
}
}
object UserPropertiesParser : JsonParser<UserProperties>() {
override fun write(value: UserProperties) = json {
"flag" to value.flag
"int" to value.int
"double" to value.double
"nullableFlag" to value.nullableFlag
}
override fun read(json: JsonObject): UserProperties {
val flag = json.getValue("flag").boolean
val int = json.getValue("int").int
val double = json.getValue("double").double
val nullableFlag = json["nullableFlag"]?.booleanOrNull
return UserProperties(flag, int, double, nullableFlag)
}
}
object UserParser : JsonParser<User>() {
override fun write(value: User) = json {
"id" to value.id
"name" to value.name
"address" to UserAddressParser.writeNullable(value.address)
"bag" to UserPropertiesParser.write(value.bag)
}
override fun read(json: JsonObject): User {
val id = json.getValue("id").int
val name = json.getValue("name").content
val address = UserAddressParser.read(json.getValue("address"))
val bag = UserPropertiesParser.read(json.getValue("bag").jsonObject)
return User(id, name, address, bag)
}
}
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