如何执行异步获取请求,然后重试上次失败的请求？

我用这种方式刷新令牌(这是更新你的代码):

import { ApolloClient } from 'apollo-client';
import { onError } from 'apollo-link-error';
import { ApolloLink, Observable } from 'apollo-link'; // <-- Add Observable

// Define Http link
const httpLink = new createHttpLink({
  uri: '/my-graphql-endpoint',
  credentials: 'include'
});

// Add on error handler for apollo link

return new ApolloClient({
  link: ApolloLink.from([
    onError(({ graphQLErrors, networkError, operation, forward }) => {
      if (graphQLErrors) {
        // User access token has expired
        if(graphQLErrors[0].message === "Unauthorized") {
          // We assume we have both tokens needed to run the async request
          if(refreshToken && clientToken) {
            // Let's refresh token through async request
            return new Observable(observer => {
              authAPI.requestRefreshToken(refreshToken, clientToken)
                .then(refreshRespOnse=> {
                  operation.setContext(({ headers = {} }) => ({
                    headers: {
                      // Re-add old headers
                      ...headers,
                      // Switch out old access token for new one
                      authorization: `Bearer ${refreshResponse.access_token}` || null,
                    } 
                  }))
                })
                .then(() => {
                  const subscriber = {
                    next: observer.next.bind(observer),
                    error: observer.error.bind(observer),
                    complete: observer.complete.bind(observer)
                  }

                  // Retry last failed request
                  forward(operation).subscribe(subscriber)
                })
                .catch(error => {
                  // No refresh or client token available, we force user to login
                  observer.error(error)
                })
            })
          }
        }
      }
    })
  ])
})