From 98056e815a6dcd36d7377d3cd823a4aaf5a3d9fa Mon Sep 17 00:00:00 2001
From: "Gabriel A. Giovanini" <mail@gabrielgio.me>
Date: Sat, 17 Feb 2018 13:55:55 -0200
Subject: Initial commit

---
 src/clj/queue_api/config.clj          | 12 +++++++++
 src/clj/queue_api/core.clj            | 48 +++++++++++++++++++++++++++++++++++
 src/clj/queue_api/handler.clj         | 19 ++++++++++++++
 src/clj/queue_api/middleware.clj      | 15 +++++++++++
 src/clj/queue_api/routes/services.clj | 44 ++++++++++++++++++++++++++++++++
 5 files changed, 138 insertions(+)
 create mode 100644 src/clj/queue_api/config.clj
 create mode 100644 src/clj/queue_api/core.clj
 create mode 100644 src/clj/queue_api/handler.clj
 create mode 100644 src/clj/queue_api/middleware.clj
 create mode 100644 src/clj/queue_api/routes/services.clj

(limited to 'src')

diff --git a/src/clj/queue_api/config.clj b/src/clj/queue_api/config.clj
new file mode 100644
index 0000000..30ed9a5
--- /dev/null
+++ b/src/clj/queue_api/config.clj
@@ -0,0 +1,12 @@
+(ns queue-api.config
+  (:require [cprop.core :refer [load-config]]
+            [cprop.source :as source]
+            [mount.core :refer [args defstate]]))
+
+(defstate env
+  :start
+  (load-config
+    :merge
+    [(args)
+     (source/from-system-props)
+     (source/from-env)]))
diff --git a/src/clj/queue_api/core.clj b/src/clj/queue_api/core.clj
new file mode 100644
index 0000000..1647375
--- /dev/null
+++ b/src/clj/queue_api/core.clj
@@ -0,0 +1,48 @@
+(ns queue-api.core
+  (:require [queue-api.handler :as handler]
+            [luminus.repl-server :as repl]
+            [luminus.http-server :as http]
+            [queue-api.config :refer [env]]
+            [clojure.tools.cli :refer [parse-opts]]
+            [clojure.tools.logging :as log]
+            [mount.core :as mount])
+  (:gen-class))
+
+(def cli-options
+  [["-p" "--port PORT" "Port number"
+    :parse-fn #(Integer/parseInt %)]])
+
+(mount/defstate ^{:on-reload :noop} http-server
+  :start
+  (http/start
+    (-> env
+        (assoc  :handler #'handler/app)
+        (update :io-threads #(or % (* 2 (.availableProcessors (Runtime/getRuntime)))))
+        (update :port #(or (-> env :options :port) %))))
+  :stop
+  (http/stop http-server))
+
+(mount/defstate ^{:on-reload :noop} repl-server
+  :start
+  (when-let [nrepl-port (env :nrepl-port)]
+    (repl/start {:port nrepl-port}))
+  :stop
+  (when repl-server
+    (repl/stop repl-server)))
+
+
+(defn stop-app []
+  (doseq [component (:stopped (mount/stop))]
+    (log/info component "stopped"))
+  (shutdown-agents))
+
+(defn start-app [args]
+  (doseq [component (-> args
+                        (parse-opts cli-options)
+                        mount/start-with-args
+                        :started)]
+    (log/info component "started"))
+  (.addShutdownHook (Runtime/getRuntime) (Thread. stop-app)))
+
+(defn -main [& args]
+  (start-app args))
diff --git a/src/clj/queue_api/handler.clj b/src/clj/queue_api/handler.clj
new file mode 100644
index 0000000..97afd48
--- /dev/null
+++ b/src/clj/queue_api/handler.clj
@@ -0,0 +1,19 @@
+(ns queue-api.handler
+  (:require [compojure.core :refer [routes wrap-routes]]
+            [queue-api.routes.services :refer [service-routes]]
+            [compojure.route :as route]
+            [queue-api.env :refer [defaults]]
+            [mount.core :as mount]
+            [queue-api.middleware :as middleware]))
+
+(mount/defstate init-app
+  :start ((or (:init defaults) identity))
+  :stop  ((or (:stop defaults) identity)))
+
+(mount/defstate app
+  :start
+  (middleware/wrap-base
+    (routes
+          #'service-routes
+      (route/not-found
+        "page not found"))))
diff --git a/src/clj/queue_api/middleware.clj b/src/clj/queue_api/middleware.clj
new file mode 100644
index 0000000..6d1ea43
--- /dev/null
+++ b/src/clj/queue_api/middleware.clj
@@ -0,0 +1,15 @@
+(ns queue-api.middleware
+  (:require [queue-api.env :refer [defaults]]
+            [queue-api.config :refer [env]]
+            [ring.middleware.flash :refer [wrap-flash]]
+            [immutant.web.middleware :refer [wrap-session]]
+            [ring.middleware.defaults :refer [site-defaults wrap-defaults]]))
+
+(defn wrap-base [handler]
+  (-> ((:middleware defaults) handler)
+      wrap-flash
+      (wrap-session {:cookie-attrs {:http-only true}})
+      (wrap-defaults
+        (-> site-defaults
+            (assoc-in [:security :anti-forgery] false)
+            (dissoc :session)))))
diff --git a/src/clj/queue_api/routes/services.clj b/src/clj/queue_api/routes/services.clj
new file mode 100644
index 0000000..cc8ac04
--- /dev/null
+++ b/src/clj/queue_api/routes/services.clj
@@ -0,0 +1,44 @@
+(ns queue-api.routes.services
+  (:require [ring.util.http-response :refer :all]
+            [compojure.api.sweet :refer :all]
+            [schema.core :as s]))
+
+(defapi service-routes
+  {:swagger {:ui "/swagger-ui"
+             :spec "/swagger.json"
+             :data {:info {:version "1.0.0"
+                           :title "Sample API"
+                           :description "Sample Services"}}}}
+  
+  (context "/api" []
+    :tags ["thingie"]
+
+    (GET "/plus" []
+      :return       Long
+      :query-params [x :- Long, {y :- Long 1}]
+      :summary      "x+y with query-parameters. y defaults to 1."
+      (ok (+ x y)))
+
+    (POST "/minus" []
+      :return      Long
+      :body-params [x :- Long, y :- Long]
+      :summary     "x-y with body-parameters."
+      (ok (- x y)))
+
+    (GET "/times/:x/:y" []
+      :return      Long
+      :path-params [x :- Long, y :- Long]
+      :summary     "x*y with path-parameters"
+      (ok (* x y)))
+
+    (POST "/divide" []
+      :return      Double
+      :form-params [x :- Long, y :- Long]
+      :summary     "x/y with form-parameters"
+      (ok (/ x y)))
+
+    (GET "/power" []
+      :return      Long
+      :header-params [x :- Long, y :- Long]
+      :summary     "x^y with header-parameters"
+      (ok (long (Math/pow x y))))))
-- 
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