desaijay315

type Mutation{
        createNewUser(name: String!, email: String!, age: Int): User!
        createPost(title: String!, body: String!, published: Boolean!, author: ID!): Post!
        deleteUser(id: ID!): User!
    }

desaijay315

const resolvers = {
  Mutation:{
          createPost(parent,args,ctx,info){
              const userExists = users.some((user)=> user.id === args.author)

              if(!userExists){
                  throw new Error('User does not exist!')
              }
              
              //use this

desaijay315

type Mutation{
        createNewUser(name: String!, email: String!, age: Int): User!
        createPost(title: String!, body: String!, published: Boolean!, author: ID!): Post!
    }

desaijay315

type Mutation{
        createNewUser(name: String!, email: String!, age: Int): User!
        deleteUser(id: ID!): User!
  }

desaijay315

const resolvers = {

  Mutation:{
        createNewUser(parent,args,ctx,info){
           const isEmailExists = users.some((user) => user.email === args.email)
           if(isEmailExists){
             throw new Error('Email already Taken')
           }

           const user = {

desaijay315

import { GraphQLServer } from 'graphql-yoga';
import uuidv4 from 'uuid/v4';

//array of users

const users = [{
    id:"1234",
    name:"jay desai",
    email: "[email protected]",
    age:27

desaijay315

Post:{
        author(parent,args,ctx,info){
            return users.find((user) =>{
                return user.id === parent.author
            })
        }
    }

desaijay315

User:{
        posts(parent,args,ctx,info){
            return posts.filter((post) =>{
                return post.author === parent.id
            })
        }
    }

desaijay315

import { GraphQLServer } from 'graphql-yoga';

//user array
const users = [{
    id:"1234",
    name:"jaydesai",
    email: "[email protected]",
    age:27
},{
    id:"5678",

desaijay315

 Post:{
        author(parent,args,ctx,info){
            return users.find((user) =>{
                return user.id === parent.author
            })
        },
        comments(parent,args,ctx,info){
            return comments.find((comment) =>{
                return comment.id === parent.commentId
            })