User Object Class https://atheros.ai/blog/input-object-type-as-an-argument-for-graphql-mutations-and-queries

user_object.ts

import {
  GraphQLString,
  GraphQLID,
  GraphQLObjectType,
  GraphQLNonNull,
} from 'graphql';

const User = new GraphQLObjectType({
  name: 'User',
  description: 'User type definition',
  fields: () => ({
      id: {
          type: new GraphQLNonNull(GraphQLID),
      },
      username: {
          type: new GraphQLNonNull(GraphQLString),
      },
      email: {
          type: GraphQLString,
      },
      phone: {
          type: GraphQLString,
      },
      firstName: {
          type: GraphQLString,
      },
      lastName: {
          type: GraphQLString,
      },
  }),
});
export default User;