express-urlrewrite2

2.0.5 • Public • Published

express-urlrewrite2

URL rewrite middleware for express.

Examples

Rewrite using a regular expression, rewriting /i123 to /items/123.

app.use(rewrite(/^\/i(\w+)/, '/items/$1'));

Rewrite using route parameters, references may be named or numeric. For example rewrite /foo..bar to /commits/foo/to/bar:

app.use(rewrite('/:src..:dst', '/commits/$1/to/$2'));
app.use(rewrite('/:src..:dst', '/commits/:src/to/:dst'));

You may also use the wildcard * to soak up several segments, for example /js/vendor/jquery.js would become /public/assets/js/vendor/jquery.js:

app.use(rewrite('/js/*', '/public/assets/js/$1'));

In the above examples, the original query string (if any) is left untouched. The regular expression is applied to the full url, so the query string can be modified as well:

app.use(rewrite('/file\\?param=:param', '/file/:param'))

The query string delimiter (?) must be escaped for the regular expression to work.

New in version 1.1

app.use(rewrite('/path', '/anotherpath?param=some'))

now updates req.query, so req.query.param == 'some'.

New in version 1.2

rewrite can be used as a route middleware as in

app.get('/route/:var', rewrite('/rewritten/:var'));
 
app.get('/rewritten/:var', someMw);

Instead of passing control to next middleware, it passes control to next route.

New in version 2.0

rewrite can filter result of regex exec before eval destination url.

app.use(rewrite('/foo/*/bar', '/anotherpath?param=$1', m => {
  return Foo.findOne({where: {name: m[1]}}).then(foo => {
    m[1] = foo.id;
  }); 
}));

Debugging

Set environment variable DEBUG=express-urlrewrite2

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Install

npm i express-urlrewrite2

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Version

2.0.5

License

MIT

Last publish

Collaborators

  • bitt