初始化next.js时从Vault获取机密

Question

我正在将next.js与库一起使用https://github.com/auth0/nextjs-auth0/

要初始化该库，我需要使用async/await从Vault获取机密，但我得到了Promise { <pending> }

我本以为以下会起作用：

// utils/auth0.js
import { initAuth0 } from '@auth0/nextjs-auth0';
const vault = require('./vault');
async function getSecretFromVault() {
const res = await vault.fetchSecret();
console.log(res);  // shows my secret correctly
return res;
}
const secret = getSecretFromVault();
console.log(secret);  // shows Promise { <pending> }
export default initAuth0({
clientId: "my_ID",
clientSecret: secret  // this will be invalid: UI shows "client_id is required"
....
});

做这件事的正确方法是什么？

Answer 1

async方法返回promise，您应该使用await来获取异步数据。

由于模块导出是同步，因此最好导出异步方法，该方法将调用Vault并返回Auth0的初始化。

// utils/auth0.js
import { initAuth0 } from '@auth0/nextjs-auth0';
const vault = require('./vault');
async function getSecretFromVault() {
const res = await vault.fetchSecret();
console.log(res); // shows my secret correctly
return res;
}
let instance;
async function getAuth0() {
if(instance) {
return Promise.resolve(instance);
}

const secret = await getSecretFromVault();
// -------------^
instance = initAuth0({
clientId: 'my_ID',
clientSecret: secret, // this will be invalid: UI shows "client_id is required"
});

return instance;
}
export default getAuth0;

// usage
import getAuth0 from './utils/auth0';
export default async function login(req, res) {
const auth0 = await getAuth0();
// --------------------^ get instance
try {
await auth0.handleLogin(req, res);
} catch (error) {
console.error(error);
res.status(error.status || 400).end(error.message);
}
}