Hi, i’m going through web development in clojure 2nd edition and I can’t figure out why i’m getting a http 412 error https://gist.github.com/anonymous/2428913e718c68e6bc64cf4c261c12e9

it looks like there is an extra set of parens here:

((try
     (db/create-user!
       (-> user
           (dissoc :pass-confirm)
           (update :pass hashers/encrypt)))
     (-> {:result :ok}
         (response/ok)
         (assoc :session (assoc session :identity (:id user))))
     (catch Exception e
       (handle-registration-error e))))

should just be:

(defn register! [{:keys [session]} user]
  (if (registration-errors user)
    (response/precondition-failed {:result :error})
    (try
      (db/create-user!
        (-> user
            (dissoc :pass-confirm)
            (update :pass hashers/encrypt)))
      (-> {:result :ok}
          (response/ok)
          (assoc :session (assoc session :identity (:id user))))
      (catch Exception e
        (handle-registration-error e)))))

@yogthos Ok, I removed that extra set of parenthesis and I got the same error. I also ran ‘lein clean’, ‘lein deps’ then restarting my repl in hopes of clearing everything out

BTW (.startsWith "ERROR: duplicate key value") PG error depends on system local language, is there a language agnostic solution to catch an error?

good question.

I've just added or and included my local, but it looks like wooden crutch

it looks like you do have to handle errors in a database dependent fashion, other approach would be to do a select in a transaction to see if a record with the same name is there

thanks