如何在apollo graphql客户端中针对特定突变在上下文中传递访问令牌

import { ApolloLink } from 'apollo-link';

const authLink = new ApolloLink((operation, forward) => {
  // 从本地存储或其他地方获取访问令牌
  const token = localStorage.getItem('accessToken');

  // 将访问令牌添加到请求的上下文中
  operation.setContext(({ headers = {} }) => ({
    headers: {
      ...headers,
      Authorization: token ? `Bearer ${token}` : '',
    },
  }));

  return forward(operation);
});

import { ApolloClient } from 'apollo-client';
import { HttpLink } from 'apollo-link-http';

const httpLink = new HttpLink({ uri: 'https://example.com/graphql' });

const client = new ApolloClient({
  link: authLink.concat(httpLink),
  // 其他配置项...
});