maniish-jaiin

public class GraphQLException extends RuntimeException implements GraphQLError {

    String customMessage;

    public GraphQLException(String customMessage) {
        this.customMessage = customMessage;
    }

    @Override

maniish-jaiin

@Service
class CarService {
    fun getCar(input: String): Car {
        return CarMap.cars[input]
                ?: throw CarNotFoundException("Car with name = $input not found",
                        mapOf("name" to input))
    }

    fun createCar(input: CarInput): Car {
        val car = Car(input.name, input.price, input.engineType)

maniish-jaiin

{
  "errors": [
    {
      "message": 
      "Exception while fetching data (/getCar) : Car with name = B Class not found",
      
      "path": [
        "getCar"
      ],
      "extensions": {

maniish-jaiin

type Mutation {
    addComment(input: AddCommentInput!): Comment
}

input AddCommentInput {
  userId: ID
  body: String
}

type Comment {

maniish-jaiin

type Comment {
  body: String
  userId: ID
}

maniish-jaiin

type Comment {
  body: String
  user: User
}

type User{
  id: ID
  name: String
}

maniish-jaiin

query getComments {
  comment {
    body
    user{
      id
      name
    }
  }
}

maniish-jaiin

{
  "errors": [
    {
      "message": "Internal Server Error(s) while executing query"
    }
  ],
  "data": null
}

maniish-jaiin

interface Profile {
  id: ID
  name: String
}

type User implements Profile {
  id: ID
  name: String
  age: Int
}

maniish-jaiin

union SearchResult = User | Company

type User {
  name: String
  age: Int
}

type Company {
  name: String
  address: Int