using transactions FTW

src/clj/auto_ap/handler.clj

@@ -7,9 +7,11 @@
             [auto-ap.routes.graphql :as graphql]
             [auto-ap.routes.vendors :as vendors]
             [auto-ap.routes.checks :as checks]
+            [auto-ap.db.utils :as u]
             [buddy.auth.backends.token :refer [jws-backend]]
             [buddy.auth.middleware :refer [wrap-authentication
                                            wrap-authorization]]
+            [clojure.java.jdbc :as jdbc]
             [compojure.core :refer :all]
             [compojure.route :as route]
             [config.core :refer [env]]
@@ -44,8 +46,19 @@
    api-routes
    static-routes))
 
+(defn wrap-transaction [handler]
+  (fn [request]
+    (jdbc/with-db-transaction [t (u/get-conn)]
+      (binding [u/current-conn t]
+        (try
+          (handler (assoc request :db-conn t))
+          (catch Exception e
+            (jdbc/db-set-rollback-only! t)
+            (throw e)))))))
+
 (def app
   (->  #'app-routes
+       (wrap-transaction)
       (wrap-authorization auth-backend)
       (wrap-authentication auth-backend)
       (wrap-reload)