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next.js/examples/with-apollo/lib/init-apollo.js
Niklas Wagner dde20fc841 Added note for AWSAppSyncClient (#4611)
I had some trouble to get server side rendering with the AWSAppSyncClient working. I finally found a solution in https://github.com/awslabs/aws-mobile-appsync-sdk-js/issues/82 but it might be worth to share it here as well. Instead of adding a big code block to each file I'll just refer to this Pull Request.

______

In case you want to use the `AWSAppSyncClient` you just need to replace the `create()` function with this function:
```jsx
import AWSAppSyncClient from 'aws-appsync';
import { AUTH_TYPE } from 'aws-appsync/lib/link/auth-link';

function create(initialState) {
  const client = new AWSAppSyncClient({
    url: AWS_AppSync.graphqlEndpoint,
    region: AWS_AppSync.region,
    auth: {
      type: AUTH_TYPE.API_KEY,
      apiKey: AWS_AppSync.apiKey,

      // Amazon Cognito Federated Identities using AWS Amplify
      //credentials: () => Auth.currentCredentials(),

      // Amazon Cognito user pools using AWS Amplify
      // type: AUTH_TYPE.AMAZON_COGNITO_USER_POOLS,
      // jwtToken: async () => (await Auth.currentSession()).getIdToken().getJwtToken(),
    },
    disableOffline: true,
  }, {
    cache: new InMemoryCache().restore(initialState || {}),
    ssrMode: true
  });

  return client;
}
```
2018-06-29 10:08:26 +02:00

40 lines
1.3 KiB
JavaScript

import { ApolloClient } from 'apollo-boost'
import { HttpLink } from 'apollo-boost'
import { InMemoryCache } from 'apollo-boost'
import fetch from 'isomorphic-unfetch'
let apolloClient = null
// Polyfill fetch() on the server (used by apollo-client)
if (!process.browser) {
global.fetch = fetch
}
function create(initialState) {
// Check out https://github.com/zeit/next.js/pull/4611 if you want to use the AWSAppSyncClient
return new ApolloClient({
connectToDevTools: process.browser,
ssrMode: !process.browser, // Disables forceFetch on the server (so queries are only run once)
link: new HttpLink({
uri: 'https://api.graph.cool/simple/v1/cixmkt2ul01q00122mksg82pn', // Server URL (must be absolute)
credentials: 'same-origin' // Additional fetch() options like `credentials` or `headers`
}),
cache: new InMemoryCache().restore(initialState || {})
})
}
export default function initApollo(initialState) {
// Make sure to create a new client for every server-side request so that data
// isn't shared between connections (which would be bad)
if (!process.browser) {
return create(initialState)
}
// Reuse client on the client-side
if (!apolloClient) {
apolloClient = create(initialState)
}
return apolloClient
}