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renew token on graphQL error - apollo client with Firebase authentication

const errorLink = onError( ({ graphQLErrors, networkError, operation, forward }) => {



 https://able.bio/AnasT/apollo-graphql-async-access-token-refresh--470t1c8


apollo client with Firebase authentication

https://dgraph.io/docs/graphql/todo-app-tutorial/todo-firebase-jwt/


Concurrent Requests

https://able.bio/AnasT/apollo-graphql-async-access-token-refresh--470t1c8
const errorLink = onError( ({ graphQLErrors, networkError, operation, forward }) => { if (graphQLErrors) { for (let err of graphQLErrors) { switch (err.extensions.code) { case 'UNAUTHENTICATED': // error code is set to UNAUTHENTICATED // when AuthenticationError thrown in resolver let forward$; if (!isRefreshing) { isRefreshing = true; forward$ = fromPromise( getNewToken() .then(({ accessToken, refreshToken }) => { // Store the new tokens for your auth link resolvePendingRequests(); return accessToken; }) .catch(error => { pendingRequests = []; // Handle token refresh errors e.g clear stored tokens, redirect to login, ... return; }) .finally(() => { isRefreshing = false; }) ).filter(value => Boolean(value)); } else { // Will only emit once the Promise is resolved forward$ = fromPromise( new Promise(resolve => { pendingRequests.push(() => resolve()); }) ); } return forward$.flatMap(() => forward(operation)); } } } if (networkError) { console.log(`[Network error]: ${networkError}`); // if you would also like to retry automatically on // network errors, we recommend that you use // apollo-link-retry } } ); const apolloLink = concat(errorLink, concat(authLink, httpLink));
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