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Scala Json Reads Playback

I have some sample code as below.

import play.api.libs.json._ import play.api.libs.functional.syntax._ import play.api.data.validation.ValidationError import play.api.libs.json.Reads._ case class Retailer(firstName:String,lastName:String,email:String,mobileNo:String,password:String) case class Business(name:String,preferredUrl:String,businessPhone:String,retailer:Retailer) object JsonTest { val jsonValue = """ { "business": { "name":"Some Business Name", "preferredUrl":"someurl", "businessPhone":"somenumber", "retailer": { "firstName":"Some", "lastName":"One", "email":" someone@somewhere.com ", "mobileNo":"someothernumber", "password":"$^^HFKH*" } } } """ def printJson ={ implicit val rltRds = ( (__ \ "firstName").read[String] ~ (__ \ "lastName").read[String] ~ (__ \ "email").read[String] ~ (__ \ "mobileNo").read[String] ~ (__ \ "password").read[String] )(Retailer) implicit val bsnsRds = ( (__ \ "name").read[String] ~ (__ \ "preferredUrl").read[String] ~ (__ \ "businessPhone").read[String] ~ (__ \ "retailer").read[Retailer](rltRds) )(Business) val buisness = Json.parse(jsonValue).validate[Business](bsnsRds) val bus = new Business("Some Business","somebusinessurl","somenumber", new Retailer("Some","One"," someone@somewhere.com ","someothernumber","$^^HFKH*")) //val json = Json.toJson(bus) println(buisness) } def main(args: Array[String]): Unit = { printJson } }

I get a Json Validation Error when I try to parse json into a Scala object (business class in this case). Mistake

JsError(List((/retailer,List(ValidationError(validate.error.missing-path,WrappedArray()))), (/preferredUrl,List(ValidationError(validate.error.missing-path,WrappedArray()))), (/name,List(ValidationError(validate.error.missing-path,WrappedArray()))), (/businessPhone,List(ValidationError(validate.error.missing-path,WrappedArray())))))

However, if my json looks like

 val jsonValue = """ { "name":"Some Business Name", "preferredUrl":"someurl", "businessPhone":"somenumber", "retailer": { "firstName":"Some", "lastName":"One", "email":" someone@somewhere.com ", "mobileNo":"someothernumber", "password":"$^^HFKH*" } } """

Note that the outer bracket "{" and "business:" are removed. I get JsSuccess. How to write entries for Json, as in the first case? Also, how can I do this in a general way?

Please, help.

+7
json scala playframework playframework-json
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2 answers

Just add the business key to the path:

  implicit val bsnsRds = ( (__ \ "business" \ "name").read[String] ~ (__ \ "business" \ "preferredUrl").read[String] ~ (__ \ "business" \ "businessPhone").read[String] ~ (__ \ "business" \ "retailer").read[Retailer](rltRds) )(Business)
+7
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A slight deviation from the above:

 implicit val bsnsRds = ({ val business = (__ \ "business") (business \ "name").read[String] ~ (business \ "preferredUrl").read[String] ~ (business \ "businessPhone").read[String] ~ (business \ "retailer").read[Retailer](rltRds) })(Business)
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