# Parameter Matching

# Alternative Curly Syntax

When adding paramaters to routes in Vue Router, you are limited to the :colon format. In making Routisan align with Laravel’s router a little more, you can now also use the {curly} format.

When using curlies, please be aware that joining two parameters together will result in their separation into two segments. As an example, {a}{b} will be compiled to :a/:b. This will not happen when using the colon syntax, however, as that would be a destructive change at router-level.

Optional parameters may be defined by placing the question-mark outside of the curlies. Ex, {user}? is compiled to :user?.

# Advanced Pattern Matching

Routisan inherintly supports all the patterns and features that Vue Router makes available. For Vue Router < 4, path-to-regexp (opens new window) is used to parse route parameters. From Vue Router 4 onwards, a built-in parser is provided, resulting in slight changes in behaviour.

One such example, though uncommon, is the catch-anything (.*). To make this a little more clear, you can use {all} in place of this expression. The behaviour doesn’t change, however – you cannot access all as a parameter.


If you are using Vue Router 4 and have opted to use {all}, you now need to name the parameter as asterisk wildcards are no longer supported on their own. For example, /something/{all} would become /something/:_{all}. If Routisan introduces Vue Router 4 as a peer dependency, it will automatically convert {all} to :_(.*)* on your behalf (this would also solve the fallback issue).

Additional notes:

  • Constraining parameters to expressions is done by placing them outside of the curlies. Ex, {user}(\\d+) is compiled to :user(\\d+).
  • Aliased constraints for numbers and strings are available: Ex, user/{user}(number) is compiled to user/:user(\\d+) and posts/{slug}(string) is compiled to posts/:slug(\\w+)
Last Updated: 9/25/2021, 12:51:09 PM