In ExpressJS, how to right the following in one route using RegEx?
app.get('/blog', blog.list);
app.get('/blog/p/:page?', blog.list);
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2 Answers
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/123
In blog.list controller req.params.page will contain page number or will be undefined if it wasn't supplied.
answered Jul 23, 2013 at 11:17
Leonid Beschastny
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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.
