Javascript 如何将createProxyMiddleware与嵌套逻辑一起使用
/node_modules/http proxy/lib/http proxy/index.js:120;错误:套接字挂起 前任职务: 我试图使用Javascript 如何将createProxyMiddleware与嵌套逻辑一起使用,javascript,express,passport.js,http-proxy,http-proxy-middleware,Javascript,Express,Passport.js,Http Proxy,Http Proxy Middleware,/node_modules/http proxy/lib/http proxy/index.js:120;错误:套接字挂起 前任职务: 我试图使用createProxyMiddleware({target:serviceProvider})而不是 apiProxy.web(req,res,{target:serviceProvider})。浏览器挂起,不显示任何内容(但我在选项卡中看到旋转) 如何正确地将createProxyMiddleware与下面的嵌套代码库一起使用 这是源代码 app.g
createProxyMiddleware({target:serviceProvider})
而不是
apiProxy.web(req,res,{target:serviceProvider})代码>。浏览器挂起,不显示任何内容(但我在选项卡中看到旋转)
如何正确地将createProxyMiddleware与下面的嵌套代码库一起使用
这是源代码
app.get('/source*',
function(req, res, next) {
req.query.RelayState = req.url;
if(req.user) { // if user is authenticated,
if(req.originalUrl) {
resource_path = req.originalUrl.split('/source')[1];
console.log(req.user['email'] + ' is viewing ' + req.originalUrl);
}
createProxyMiddleware({ target: serviceProvider})
// apiProxy.web(req, res, {target: serviceProvider});
} else {
if(process.env.MODE=='HACK') {
createProxyMiddleware({ target: serviceProvider})
// apiProxy.web(req, res, {target: serviceProvider});
} else {
passport.authenticate('samlStrategy')(req, res, next);
}
}
},
);
在这两者之间,这是有效的:app.get('/source*',createProxyMiddleware({target:serviceProvider}))
问题是代理中间件已创建,但未实际调用,因此请求挂起。解决这一问题的一种方法是按照您所做的那样创建中间件(但最好在路由处理程序之外,因为它将在每个请求中创建),然后使用当前express中间件的参数调用它:
const serviceProviderProxy = createProxyMiddleware({target: serviceProvider });
app.get('/source*', (req, res, next) => {
req.query.RelayState = req.url;
if (req.user) { // if user is authenticated,
if (req.originalUrl) {
resource_path = req.originalUrl.split('/source')[1];
console.log(req.user['email'] + ' is viewing ' + req.originalUrl);
}
return serviceProviderProxy.call(serviceProviderProxy, req, res, next); // you need to return here if there's more code below the else block, otherwise return is not needed
} else {
if(process.env.MODE=='HACK') {
return serviceProviderProxy.call(serviceProviderProxy, req, res, next);
} else {
passport.authenticate('samlStrategy')(req, res, next);
}
}
// potential more code ...
});