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reitit Build Status cljdoc badge Slack

A fast data-driven router for Clojure(Script).

Presentations:

Status: stable

Full Documentation

There is #reitit in Clojurians Slack for discussion & help.

Main Modules

  • reitit - all bundled
  • reitit-core - the routing core
  • reitit-ring - a ring router
  • reitit-middleware - common middleware
  • reitit-spec clojure.spec coercion
  • reitit-malli malli coercion
  • reitit-schema Schema coercion
  • reitit-swagger Swagger2 apidocs
  • reitit-swagger-ui Integrated Swagger UI
  • reitit-frontend Tools for frontend routing
  • reitit-http http-routing with Interceptors
  • reitit-interceptors - common interceptors
  • reitit-sieppari support for Sieppari
  • reitit-dev - development utilities

Extra modules

Latest version

All main modules bundled:

[metosin/reitit "0.5.18"]

Optionally, the parts can be required separately.

Quick start

(require '[reitit.core :as r])

(def router
  (r/router
    [["/api/ping" ::ping]
     ["/api/orders/:id" ::order]]))

(r/match-by-path router "/api/ping")
; #Match{:template "/api/ping"
;        :data {:name ::ping}
;        :result nil
;        :path-params {}
;        :path "/api/ping"}

(r/match-by-name router ::order {:id 2})
; #Match{:template "/api/orders/:id",
;        :data {:name ::order},
;        :result nil,
;        :path-params {:id 2},
;        :path "/api/orders/2"}

Ring example

A Ring routing app with input & output coercion using data-specs.

(require '[muuntaja.core :as m])
(require '[reitit.ring :as ring])
(require '[reitit.coercion.spec])
(require '[reitit.ring.coercion :as rrc])
(require '[reitit.ring.middleware.muuntaja :as muuntaja])
(require '[reitit.ring.middleware.parameters :as parameters])

(def app
  (ring/ring-handler
    (ring/router
      ["/api"
       ["/math" {:get {:parameters {:query {:x int?, :y int?}}
                       :responses  {200 {:body {:total int?}}}
                       :handler    (fn [{{{:keys [x y]} :query} :parameters}]
                                     {:status 200
                                      :body   {:total (+ x y)}})}}]]
      ;; router data affecting all routes
      {:data {:coercion   reitit.coercion.spec/coercion
              :muuntaja   m/instance
              :middleware [parameters/parameters-middleware
                           rrc/coerce-request-middleware
                           muuntaja/format-response-middleware
                           rrc/coerce-response-middleware]}})))

Valid request:

(app {:request-method :get
      :uri "/api/math"
      :query-params {:x "1", :y "2"}})
; {:status 200
;  :body {:total 3}}

Invalid request:

(app {:request-method :get
      :uri "/api/math"
      :query-params {:x "1", :y "a"}})
;{:status 400,
; :body {:type :reitit.coercion/request-coercion,
;        :coercion :spec,
;        :spec "(spec-tools.core/spec {:spec (clojure.spec.alpha/keys :req-un [:$spec20745/x :$spec20745/y]), :type :map, :keys #{:y :x}, :keys/req #{:y :x}})",
;        :problems [{:path [:y],
;                    :pred "clojure.core/int?",
;                    :val "a",
;                    :via [:$spec20745/y],
;                    :in [:y]}],
;        :value {:x "1", :y "a"},
;        :in [:request :query-params]}}

More examples

All examples are in https://github.com/metosin/reitit/tree/master/examples

External resources

More info

Check out the full documentation!

Join #reitit channel in Clojurians slack.

Roadmap is mostly written in issues.

Special thanks

License

Copyright © 2017-2021 Metosin Oy

Distributed under the Eclipse Public License, the same as Clojure.