lib/sibit/blockchain.rb in sibit-0.17.0 vs lib/sibit/blockchain.rb in sibit-0.18.0

@@ -45,17 +45,22 @@
       @log = log
       @dry = dry
     end
 
     # Current price of BTC in USD (float returned).
-    def price(currency)
+    def price(currency = 'USD')
       h = Sibit::Json.new(http: @http, log: @log).get(
         URI('https://blockchain.info/ticker')
       )[currency]
       raise Error, "Unrecognized currency #{currency}" if h.nil?
       price = h['15m']
       @log.info("The price of BTC is #{price} USD")
       price
+    end
+
+    # Get hash of the block after this one.
+    def next_of(_hash)
+      raise Sibit::Error, 'Blockchain API doesn\'t provide next_of()'
     end
 
     # The height of the block.
     def height(hash)
       json = Sibit::Json.new(http: @http, log: @log).get(