Rewrite url path using node.js

Question

Is it possible to rewrite the URL path using node.js?(I\'m also using Express 3.0)

I\'ve tried something like this:

req.url = \'foo\';

Answer 1

A good idea should be to update the path too. My method suggestions:

app.use(function(req, res, next) {
    console.log("request", req.originalUrl);
    const removeOnRoutes = '/not-wanted-route-part';
    req.originalUrl = req.originalUrl.replace(removeOnRoutes,'');
    req.path = req.path.replace(removeOnRoutes,'');
    return next();
});

By this way /not-wanted-route-part/users will became /users

Answer 2

Sure, just add a middleware function to modify it. For example:

app.use(function(req, res, next) {
  if (req.url.slice(-1) === '/') {
    req.url = req.url.slice(0, -1);
  }
  next();
});

This function removes the trailing slash from all incoming request URLs. Note that in order for this to work, you will need to place it before the call to app.use(app.router).

Answer 3

you need override some properties of req (IncomingMessage in NodeJs):

• url
• path
• search
• query

2

function changeUrl(req, url) {
    const parsedUrl = new URL(url);
    req.url = url;
    req.originalUrl = url;
    req.path = parsedUrl.pathname;
    req.search = parsedUrl.search;
    req._parsedUrl = parsedUrl;
    const query = {};
    for(const entry of parsedUrl.searchParams) {
        query[entry[0]] = entry[1];
    }
    req.query = query;
}