clarencenpy

import { onError } from 'apollo-link-error';
const ReauthenticationLink = onError(
  ({ graphQLErrors, networkError, operation, forward }) => {
    if (graphQLErrors) {
      for (let err of graphQLErrors) {
        // handle errors differently based on its error code
        switch (err.extensions.code) {
          case 'UNAUTHENTICATED':
            // old token has expired throwing AuthenticationError,
            // one way to handle is to obtain a new token and 

clarencenpy

{
  "error": {
    "graphQLErrors": [
      {
        "message": "forbidden",
        "locations": [],
        "path": [
          "protectedAction"
        ],
        "extensions": {

clarencenpy

import { AuthenticationError } from 'apollo-server'
const resolvers = {
  Mutation: {
    protectedAction(root, args , { user }) { 
      if (!user) { 
        throw new AuthenticationError('You must be logged in');
      }
    }
  }
};

clarencenpy

{
  "errors": [{
    "message": "Something went wrong",
    "locations": [
      {
        "line": 3,
        "column": 5
      }
    ],
  }]

clarencenpy

import React from 'react';
import { render } from 'react-dom';
import ApolloClient from 'apollo-boost';
import { ApolloProvider } from 'react-apollo';

// Pass your GraphQL endpoint to uri
const client = new ApolloClient({
  uri: 'https://nx9zvp49q7.lp.gql.zone/graphql'
});