无法将阿波罗客户端连接到aws appsync

Question

我有一个web应用程序，使用appsync作为后端和react +阿波罗客户端(v3)作为前端。但是，当我尝试将阿波罗客户端连接到appsync时，我会从库中得到一条错误消息：

./node_modules/aws-appsync-react/lib/offline-helpers.js

模块未找到:无法解决'/Users/mypath/web/node_modules/aws-appsync-react/lib‘中的“反应-阿波罗”

下面是客户机的配置：

import AWSAppSyncClient from "aws-appsync";
import AppSyncConfig from "./aws-exports";

export const apolloClient = new AWSAppSyncClient({
  url: AppSyncConfig.aws_appsync_graphqlEndpoint,
  region: AppSyncConfig.aws_appsync_region,
  auth: {
    type: AppSyncConfig.aws_appsync_authenticationType,
    apiKey: AppSyncConfig.aws_appsync_apiKey,
  },
});

在我的App.ts里

import { ApolloProvider } from "@apollo/client";
import { Rehydrated } from "aws-appsync-react";
import { apolloClient } from "./apollo";

...
<ApolloProvider client={apolloClient}>
  <Rehydrated>
      <MyApp />
  </Rehydrated>
</ApolloProvider>

看起来是兼容性问题吗？

我在用"@apollo/client": "^3.1.3", "aws-appsync": "^4.0.0","aws-appsync-react": "^4.0.0",。

Answer 1

这是一个兼容性问题。当前版本的aws-appsync不支持apollo-client v3，请参阅此线程了解进度：https://github.com/awslabs/aws-mobile-appsync-sdk-js/issues/448

最好的解决办法是：Proper way to setup AWSAppSyncClient, Apollo & React

注意，解决方案确实使用了两个不推荐的库，但可以稍微改进如下：

import { ApolloClient, ApolloLink, InMemoryCache } from "@apollo/client";
import { createAuthLink } from "aws-appsync-auth-link";
import { createHttpLink } from "apollo-link-http";
import AppSyncConfig from "./aws-exports";

const url = AppSyncConfig.aws_appsync_graphqlEndpoint;
const region = AppSyncConfig.aws_project_region;
const auth = {
  type: AppSyncConfig.aws_appsync_authenticationType,
  apiKey: AppSyncConfig.aws_appsync_apiKey,
};
const link = ApolloLink.from([
  // @ts-ignore
  createAuthLink({ url, region, auth }),
  // @ts-ignore
  createHttpLink({ uri: url }),
]);
const client = new ApolloClient({
  link,
  cache: new InMemoryCache(),
});

export default client;