In ExpressJS, how to right the following in one route using RegEx?
app.get('/blog', blog.list);
app.get('/blog/p/:page?', blog.list);
What the point of using RegExp here? Express patterns is simpler, yet almost as powerful as regular expressions:
app.get('/blog(?:/p/:page([0-9]+)?)?', blog.list);
This route will match all of the following urls:
/blog/blog//blog/p/blog/p//blog/p/123In blog.list controller req.params.page will contain page number or will be undefined if it wasn't supplied.
It seems like there might be compelling reasons to make these separate routes, but I'm not sure what you are doing with your app.
app.get(/^\/blog(?:\/p\/([0-9]+)?)?/, blog.list);
req.params[0] should be "20" at the route /blog/p/20, with req.params as null for /blog/p/ or /blog/ but with with both as functional routes.