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apollo-client.ts
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apollo-client.ts
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import {
ApolloClient,
InMemoryCache,
createHttpLink,
from,
Observable,
ApolloError,
} from '@apollo/client';
import {setContext} from '@apollo/client/link/context';
import AsyncStorage from '@react-native-async-storage/async-storage';
import {onError} from '@apollo/client/link/error';
import { TOKEN_TAG } from './shared/constants';
const httpLink = createHttpLink({
uri: 'https://blurg-server.herokuapp.com/graphql',
});
const authLink = setContext(async (_, {headers}) => {
const token = await AsyncStorage.getItem(TOKEN_TAG);
return {
headers: {
...headers,
authorization: token ? `Bearer ${token}` : '',
},
};
});
const errorLink = onError(({operation, graphQLErrors, networkError}) => {
if (graphQLErrors) {
graphQLErrors.map(({extensions}: any) => {
if (
extensions?.exception?.status === 401 && (operation.operationName === 'user' || operation.operationName === 'login' || operation.operationName === 'signup')
) {
AsyncStorage.removeItem(TOKEN_TAG);
}
});
}
if (networkError) {
return new Observable((obs) => {
obs.error(
new ApolloError({
errorMessage: networkError.message,
graphQLErrors,
networkError,
}),
);
});
}
});
export const client = new ApolloClient({
link: from([authLink, errorLink, httpLink]),
cache: new InMemoryCache(),
defaultOptions: {
watchQuery: {
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
},
},
});