node.js - 如何修复: Cannot read property 'keycloak-token' of undefined in node js?

Question

我已经创建了领域和客户端。 keycloak json 放置在根文件夹中。我仍然收到这样的错误，

Cannot read property 'keycloak-token' of undefined
TypeError: Cannot read property 'keycloak-token' of undefined at SessionStore.get (C:\Users\...\node_modules\keycloak-connect\stores\session-store.js:24:58)

var session = require('express-session');
var Keycloak = require('keycloak-connect');

var memoryStore = new session.MemoryStore();
var keycloak = new Keycloak({ store: memoryStore });

Answer 1

当您设置 app.use(keycloak.middleware()) 且未配置 session 存储时，您会收到此错误。 keycloak-connect 库正在尝试从尚未配置的 session 中读取 keycloak-token 值。您可以通过提供 Authorization header (例如 Authorization: Bearer 123)来避免该错误，但使用 session 存储时的解决方案是对其进行配置。

有关完整示例，请参阅项目依赖项中的 node_modules/keycloak-connect/example/index.js。一个最小的例子 resource protection使用multiple middlewares在下面的路由处理程序中。

是advised然而，:

MemoryStore, is purposely not designed for a production environment. It will leak memory under most conditions, does not scale past a single process, and is meant for debugging and developing.

const express = require('express')
const app = express()
const session = require('express-session');
const Keycloak = require('keycloak-connect');
var memoryStore = new session.MemoryStore();
var keycloak = new Keycloak({ store: memoryStore });

// Configure session
app.use(session({
  secret: 'mySecret',
  resave: false,
  saveUninitialized: true,
  store: memoryStore
}));

// Attach middleware
app.use(keycloak.middleware());

// Attach route handler for home page
app.get('/', keycloak.protect(), (req, res, next) => {
  res.json({status: 'ok'})
})

// Start server
app.listen(3005)