(defn create-schema []
  (let [schema [{:db/ident              :item/id
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/amount
                 :db/valueType          :db.type/number
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/owner
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/status
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/address
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/price
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/price_type
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/block_nr
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/nonce
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/expires
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/log_nr
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}
                {:db/ident              :item/price_address
                 :db/valueType          :db.type/string
                 :db/cardinality        :db.cardinality/one
                 :db.install/_attribute :db.part/db}]]
    @(d/transact conn schema)))