debian-mirror-gitlab/app/assets/javascripts/lib/graphql.js

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import { ApolloClient } from 'apollo-client';
import { InMemoryCache } from 'apollo-cache-inmemory';
import { createUploadLink } from 'apollo-upload-client';
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import { ApolloLink } from 'apollo-link';
import { BatchHttpLink } from 'apollo-link-batch-http';
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import csrf from '~/lib/utils/csrf';
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export const fetchPolicies = {
CACHE_FIRST: 'cache-first',
CACHE_AND_NETWORK: 'cache-and-network',
NETWORK_ONLY: 'network-only',
NO_CACHE: 'no-cache',
CACHE_ONLY: 'cache-only',
};
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export default (resolvers = {}, config = {}) => {
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let uri = `${gon.relative_url_root}/api/graphql`;
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if (config.baseUrl) {
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// Prepend baseUrl and ensure that `///` are replaced with `/`
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uri = `${config.baseUrl}${uri}`.replace(/\/{3,}/g, '/');
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}
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const httpOptions = {
uri,
headers: {
[csrf.headerKey]: csrf.token,
},
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// fetch wont send cookies in older browsers, unless you set the credentials init option.
// We set to `same-origin` which is default value in modern browsers.
// See https://github.com/whatwg/fetch/pull/585 for more information.
credentials: 'same-origin',
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};
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return new ApolloClient({
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link: ApolloLink.split(
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operation => operation.getContext().hasUpload || operation.getContext().isSingleRequest,
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createUploadLink(httpOptions),
new BatchHttpLink(httpOptions),
),
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cache: new InMemoryCache({
...config.cacheConfig,
freezeResults: config.assumeImmutableResults,
}),
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resolvers,
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assumeImmutableResults: config.assumeImmutableResults,
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defaultOptions: {
query: {
fetchPolicy: config.fetchPolicy || fetchPolicies.CACHE_FIRST,
},
},
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});
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};