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import { ApolloClient } from 'apollo-client';
import { InMemoryCache } from 'apollo-cache-inmemory';
import { createUploadLink } from 'apollo-upload-client';
import { ApolloLink } from 'apollo-link';
import { BatchHttpLink } from 'apollo-link-batch-http';
import csrf from '~/lib/utils/csrf';
export default (resolvers = {}, config = {}) => {
let uri = `${gon.relative_url_root}/api/graphql`;
if (config.baseUrl) {
// Prepend baseUrl and ensure that `///` are replaced with `/`
uri = `${config.baseUrl}${uri}`.replace(/\/{3,}/g, '/');
}
const httpOptions = {
uri,
headers: {
[csrf.headerKey]: csrf.token,
},
};
return new ApolloClient({
link: ApolloLink.split(
operation => operation.getContext().hasUpload || operation.getContext().isSingleRequest,
createUploadLink(httpOptions),
new BatchHttpLink(httpOptions),
),
cache: new InMemoryCache({
...config.cacheConfig,
freezeResults: config.assumeImmutableResults,
}),
resolvers,
assumeImmutableResults: config.assumeImmutableResults,
});
};
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