问题描述
我正在使用 next-auth 来管理我的 next.js 应用程序的 JWT 令牌和会话。我也使用 urql 作为 GraphQL 客户端。我在文件中初始化 urql 客户端,如下所示:
import { createClient } from 'urql';
const client = createClient({
url: process.env.NEXT_PUBLIC_API_URL,fetchOptions: () => {
return {
headers: {},// I'd like to set Auth header here...
};
},});
export default client;
然后将其添加到 _app.tsx
中,如下所示:
import type { AppProps } from 'next/app';
import { Provider as AuthProvider } from 'next-auth/client';
import { Provider as GraphqlProvider } from 'urql';
import client from '../graphql/client';
function App({ Component,pageProps }: AppProps) {
const { session } = pageProps;
return (
<GraphqlProvider value={client}>
<AuthProvider session={session}>
<Component {...pageProps} />
</AuthProvider>
</GraphqlProvider>
);
}
export default App;
现阶段没什么特别的。
现在我的问题是我希望能够访问访问令牌以在客户端中添加 Authorization
标头,但是因为这段代码存在于 React 组件之外,所以我无法使用 {{ 1}} 由 next-auth 提供的钩子。
解决方法
我得到了一位 next-auth
维护者关于如何处理这种情况的非常有用的回复:https://github.com/nextauthjs/next-auth/discussions/1806
重要的一点是让 AuthProvider
作为 _app.tsx
中最父组件,然后创建一个 useClient
钩子,您传递给 urql 的提供者:
/graphql/client.ts
import { createClient } from '@urql/core';
import { useSession } from 'next-auth/client';
import * as React from 'react';
/**
* Get GraphQL Client in browser environments (frontend).
*
* If the user has an active session,it will add an accessToken to all requests
*/
const useClient = (options?: RequestInit) => {
const [session] = useSession();
const token = session?.accessToken;
// const handleError = useErrorHandler();
return React.useMemo(() => {
const client = createClient({
url: process.env.NEXT_PUBLIC_API_URL,fetchOptions: () => {
return {
headers: {
Authorization: token ? `Bearer ${token}` : '',...(options?.headers ? options.headers : {}),},};
},});
return client;
},[options,token]);
};
export default useClient;
然后创建 urql 提供程序,传入您从 useClient
钩子获取的客户端:
/graphql/provider.tsx
import React from 'react';
import { Provider } from 'urql';
import useClient from './client';
interface GraphqlProviderProps {}
const GraphqlProvider: React.FC<GraphqlProviderProps> = ({ children }) => {
const client = useClient();
return <Provider value={client}>{children}</Provider>;
};
export default GraphqlProvider;
然后在AuthProvider
中使用它作为子_app.tsx
import { Provider as AuthProvider } from 'next-auth/client';
import type { AppProps } from 'next/app';
import GraphqlProvider from '../graphql/provider';
import '../styles/index.css';
function App({ Component,pageProps }: AppProps) {
const { session } = pageProps;
return (
<AuthProvider session={session}>
<GraphqlProvider>
<Component {...pageProps} />
</GraphqlProvider>
</AuthProvider>
);
}
export default App;
最后,您可以暂停所有 useQuery
请求,直到 session
被初始化:
/pages/index.tsx
import { signIn,signOut,useSession } from 'next-auth/client';
import React from 'react';
import { useQuery } from 'urql';
interface HomeProps {}
const Home: React.FC<HomeProps> = ({}) => {
const [session,loading] = useSession();
const QUERY = `
query {
users {
id
name
email
}
}
`;
const request = useQuery({ query: QUERY,pause: !session });
console.log(request);
return (
<div>
{!session && (
<>
Not signed in <br />
<button onClick={() => signIn()}>Sign in</button>
</>
)}
{session && (
<>
Signed in as {session.user.email} <br />
<button onClick={() => signOut()}>Sign out</button>
</>
)}
</div>
);
};
export default Home;
它有效!您可以在网络请求中看到带有有效 jwt 令牌的 auth 标头 :-)