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Path Matching

Relative v. Absolute Paths

Paths that start with / are absolute. Paths that don't start with / are relative and extend their parent's path.

<Route path="/">
  <!-- /courses/123 -->
  <Route path="courses/:courseId">
    <!-- /courses/123/anouncements -->
    <Route path="announcements" />
    <!-- /courses/123/dashboard -->
    <Route path="dashboard" />
  </Route>
  <!-- /inbox -->
  <Route path="inbox">
    <!-- /messages/123 -->
    <Route path="/messages/:messageId"/>
  </Route>
</Route>

Absolute paths allow you to use any URL you want while maintaining the automatic view nesting of the router.

Dynamic Segments

Dynamic segments are defined with a :, like :userId. They will be parsed and available by name in your route handler on this.props.params. They match most characters except / ? #.

Splats

Splats are defined with * and will non-greedily match anything. The value will be available in your route handler as this.props.params.splat. If there are multiple, you'll get an array of values.

Question Mark

Question marks will optionally match the preceding segment.

Examples

path: /file/:name
matches:
  /file/foo.js
    this.props.params: {name: 'foo.js'}
does not match:
  /file/quux/baz.gif
  /file/
  /file

path: /file/:name?
matches:
  /file/foo.js
    this.props.params: {name: 'foo.js'}
  /file/
    this.props.params: {}
does not match:
  /file
  /file/quux/baz.js

path: /file/?:name?
matches:
  /file/foo.js
    this.props.params: {name: 'foo.js'}
  /file/
    this.props.params: {}
  /file
    this.props.params: {}
does not match:
  /file/quux/baz.js

path: /file/*
matches:
  /file/foo.js
    this.props.params: {splat: 'foo.js'}
  /file/foo.bar.js
    this.props.params: {splat: 'foo.bar.js'}
  /file/quux/baz.js
    this.props.params: {splat: 'quux/baz.js'}

path: /foo/*/:bar/?*?
matches:
  /foo/a.b.c/taco/def
    this.props.params: {bar: 'taco', splat: ['a.b.c', 'def']}
  /foo/a.b.c/taco
    this.props.params: {bar: 'taco', splat: 'a.b.c'}
does not match:
  /foo/a.b.c

path: *
matches everything, but you probably want `<NotFoundRoute/>`