Decorate app instead of pages with Apollo.

This commit is contained in:
Jayden Seric 2018-09-18 21:44:51 +10:00
parent 7426bbfdcf
commit c61465322c
4 changed files with 96 additions and 80 deletions

18
app/pages/_app.js Normal file
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@ -0,0 +1,18 @@
import { ApolloProvider } from 'react-apollo'
import App, { Container } from 'next/app'
import withApollo from '../withApollo'
class CustomApp extends App {
render() {
const { Component, pageProps, apolloClient } = this.props
return (
<Container>
<ApolloProvider client={apolloClient}>
<Component {...pageProps} />
</ApolloProvider>
</Container>
)
}
}
export default withApollo(CustomApp)

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@ -4,7 +4,6 @@ import UploadFile from '../components/UploadFile'
import UploadFileList from '../components/UploadFileList'
import UploadBlob from '../components/UploadBlob'
import Uploads from '../components/Uploads'
import withData from '../providers/with-data'
const IndexPage = () => (
<Page title="Apollo upload examples">
@ -29,4 +28,4 @@ const IndexPage = () => (
</Page>
)
export default withData(IndexPage)
export default IndexPage

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@ -1,78 +0,0 @@
import 'cross-fetch/polyfill'
import React, { Component } from 'react'
import getDisplayName from 'react-display-name'
import { ApolloClient } from 'apollo-client'
import { InMemoryCache } from 'apollo-cache-inmemory'
import { createUploadLink } from 'apollo-upload-client'
import { getDataFromTree, ApolloProvider } from 'react-apollo'
import { Router } from 'next/router'
import App from 'next/app'
// Shares the browser ApolloClient instance between pages.
let browserApolloClient
const createApolloClient = (cache = {}) =>
new ApolloClient({
ssrMode: typeof window !== 'undefined',
cache: new InMemoryCache().restore(cache),
link: createUploadLink({ uri: process.env.API_URI })
})
export default Composed =>
class WithData extends Component {
constructor(props) {
super(props)
// Set the ApolloClient instance used in render().
this.apolloClient =
typeof window !== 'undefined'
? // Client: Shared instance, created at first render after SSR.
(browserApolloClient =
browserApolloClient || createApolloClient(props.cache))
: // Server: Private instance for SSR.
createApolloClient(props.cache)
}
static displayName = `WithApollo(${getDisplayName(Composed)})`
static async getInitialProps(ctx) {
// Use initial props from nested page decorators.
const props = Composed.getInitialProps
? await Composed.getInitialProps(ctx)
: {}
// If server environment, preload the page.
if (ctx.req) {
const apolloClient = createApolloClient()
try {
await getDataFromTree(
<App
router={new Router(ctx.pathname, ctx.query, ctx.asPath)}
pageProps={{ apolloClient, pageProps: props }}
Component={this.renderPage}
/>
)
} catch (error) {
// Prevent crash from GraphQL errors.
}
props.cache = apolloClient.cache.extract()
}
return props
}
static renderPage = ({ apolloClient, pageProps }) => (
<ApolloProvider client={apolloClient}>
<Composed {...pageProps} />
</ApolloProvider>
)
render() {
return this.constructor.renderPage({
apolloClient: this.apolloClient,
pageProps: this.props
})
}
}

77
app/withApollo.js Normal file
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@ -0,0 +1,77 @@
import 'cross-fetch/polyfill'
import { InMemoryCache } from 'apollo-cache-inmemory'
import { ApolloClient } from 'apollo-client'
import { createUploadLink } from 'apollo-upload-client'
import Head from 'next/head'
import { Component } from 'react'
import { getDataFromTree } from 'react-apollo'
import getDisplayName from 'react-display-name'
let apolloClient
const createApolloClient = (cache = {}) =>
new ApolloClient({
ssrMode: typeof window !== 'undefined',
cache: new InMemoryCache().restore(cache),
link: createUploadLink({ uri: process.env.API_URI })
})
export default App =>
class WithApollo extends Component {
static displayName = `WithApollo(${getDisplayName(App)})`
static async getInitialProps(context) {
const props = App.getInitialProps
? await App.getInitialProps(context)
: {}
// If server environment, preload the page.
if (context.ctx.req) {
const apolloClient = createApolloClient()
try {
await getDataFromTree(
<App
{...props}
Component={context.Component}
router={context.router}
apolloClient={apolloClient}
/>
)
} catch (error) {
// Prevent crash from GraphQL errors.
// eslint-disable-next-line no-console
console.error(error)
}
props.apolloCache = apolloClient.cache.extract()
Head.rewind()
}
return props
}
constructor(props) {
super(props)
// Set the ApolloClient instance used in render().
this.apolloClient =
typeof window !== 'undefined'
? // Client: Shared instance, created at first render after SSR.
(apolloClient =
apolloClient || createApolloClient(props.apolloCache))
: // Server: Private instance for SSR.
createApolloClient(props.apolloCache)
}
render() {
const {
// eslint-disable-next-line no-unused-vars
apolloCache,
...appProps
} = this.props
return <App {...appProps} apolloClient={this.apolloClient} />
}
}