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35 lines
1 KiB
Markdown
35 lines
1 KiB
Markdown
# Router
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Routes are just data and to do actual routing, we need a Router satisfying the `reitit.core/Router` protocol. Routers are created with `reitit.core/router` function, taking the raw routes and optionally an options map. Raw routes gets expanded and optionally coerced and compiled.
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`Router` protocol:
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```clj
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(defprotocol Router
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(router-name [this])
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(routes [this])
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(options [this])
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(route-names [this])
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(match-by-path [this path])
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(match-by-name [this name] [this name params]))
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```
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Creating a router:
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```clj
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(require '[reitit.core :as r])
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(def router
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(r/router
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[["/api"
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["/ping" ::ping]
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["/user/:id" ::user]]]))
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```
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Router flattens the raw routes and expands the route arguments using `reitit.core/Expand` protocol. By default, `Keyword`s are expanded to `:name` and functions are expaned to `:handler`. `nil` routes are removed. The expanded routes can be retrieved with router:
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```clj
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(r/routes router)
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; [["/api/ping" {:name :user/ping}]
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; ["/api/user/:id" {:name :user/user}]]
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```
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