(component/system-map
   :dynamo-db (tc.ddb.component/map->AwsDynamoDb {:credentials (when-not (= profile :prod)
                                                       create-dev-credentials)
                                        :endpoint (when-not (= profile :prod)
                                                    (URI. development-url))
                                        :region Region/AP_NORTHEAST_1}))

(let [item (tc.ddb.protocol/get-item dynamo-db
                                     "example-table"
                                     {"email" (tc.ddb.fmt/clj-string->ddb-string "sample@example.com")})]

  ;; convert to clojure map if needed
  {:name (tc.ddb.fmt/ddb-string->clj-string (get item "name"))
   :age (tc.ddb.fmt/ddb-number->clj-int (get item "age"))})