Error occurred when using with Apollo: Cannot read property 'data' of null

[vfa-tienhnm-os]

Hello all!

I'm having trouble using ignite with apollo graphql.

I'm also not sure if this error of ignite or apollo, but when I use react-native init to create the project, the apollo works as expected.

The problem only occurs on Android, when I turn off the graphQL server (create network error), the application will appear a red screen when cannot query to server.

Steps to reproduce

1. Create new ignite project
2. Install apollo-boost, react-apollo and graphql
3. This is the content of the file App.js:

import React from 'react'
import { Text } from 'react-native'
import ApolloClient, { gql } from 'apollo-boost'
import { ApolloProvider, Query } from 'react-apollo'

const client = new ApolloClient({
    uri: 'http://192.168.4.111:4000'
})

const READ_TODOS = gql`
    query {a
        readTodos {
            id,
            title,
            completed
        }
    }
`

export default DemoScreen = () => {
    return (
        <ApolloProvider client={client}>
            <Query query={READ_TODOS}>
                {({ loading, error, data }) => {
                    if (loading) return <Text>Loading...</Text>
                    if (error) return <Text>Error :(</Text>
                    return data.readTodos.map(({ id, title }) => (
                        <Text key={id}>{title}</Text>
                    ))
                }}
            </Query>
        </ApolloProvider>
    );
}

4. Make sure that graphQL server is turned off and run project on Android

ignite doctor results:

System
  platform           darwin                                                                             
                                          
  arch               x64                                                                                
  cpu                4 cores                                   Intel(R) Core(TM) i5-5350U CPU @ 1.80GHz 
  directory          /Users/tienhnm/Workspaces/corporation4d                                            

JavaScript
  node               10.16.0      /usr/local/bin/node 
  npm                6.9.2        /usr/local/bin/npm  
  yarn               1.16.0       /usr/local/bin/yarn 

React Native
  react-native-cli   2.0.1      
  app rn version     0.59.3     

Ignite
  ignite-cli           3.1.3                                                                                                                                                                                        /usr/local/bin/ignite 
  createdWith          3.1.3                                                                                                                                                                                                              
  boilerplate          ignite-andross                                                                                                                                                                                                     
  examples             classic                                                                                                                                                                                                            
  navigation           react-navigation                                                                                                                                                                                                   
  askToOverwrite       true                                                                                                                                                                                                               
  generators           {"component":"ignite-andross","container":"ignite-andross","listview":"ignite-andross","list":"ignite-andross","redux":"ignite-andross","saga":"ignite-andross","screen":"ignite-andross"}                         
  boilerplateVersion   4.0.5                                                                                                                                                                                                              

Android
  java               1.8.0_212    /usr/bin/java                      
  android home       -            /Users/tienhnm/Library/Android/sdk 

iOS
  xcode              10.1

[jamonholmgren]

Hey @vfa-tienhnm-os , thanks for the issue! We'd love a PR from the community, as we're focused on Bowser currently.