Add estimatesmartfee to monitor mode

main.py

@@ -60,12 +60,12 @@ async def handle_hotkeys(window, callback, resize_callback):
         await handle_key(key)
 
 
-async def poll_client(client, method, callback, sleeptime):
+async def poll_client(client, method, callback, sleeptime, params=None):
     # Allow the rest of the program to start.
     await asyncio.sleep(0.1)
 
     while True:
-        j = await client.request(method)
+        j = await client.request(method, params=params)
         await callback(method, j)
         await asyncio.sleep(sleeptime)
 
@@ -155,6 +155,12 @@ def create_tasks(client, window):
                     on_peerinfo, 5.0),
         poll_client(client, "getmempoolinfo",
                     monitorview.on_mempoolinfo, 5.0),
+        poll_client(client, "estimatesmartfee",
+                    monitorview.on_estimatesmartfee, 15.0, params=[2]),
+        poll_client(client, "estimatesmartfee",
+                    monitorview.on_estimatesmartfee, 15.0, params=[5]),
+        poll_client(client, "estimatesmartfee",
+                    monitorview.on_estimatesmartfee, 15.0, params=[10]),
         tick(on_tick, 1.0),
         handle_hotkeys(window, footerview.on_mode_change, on_window_resize)
     ]

monitor.py

@@ -25,6 +25,7 @@ class MonitorView(object):
         self._bestblock = None  # raw json block
         self._bestcoinbase = None  # raw json tx
         self._mempoolinfo = None  # raw mempoolinfo
+        self._estimatesmartfee = {} # blocks -> feerate/kB
         self._dt = None
 
         self._window_size = MIN_WINDOW_SIZE
@@ -120,6 +121,13 @@ class MonitorView(object):
                 self._mempoolinfo["bytes"] / 1048576,
             ))
 
+        if self._estimatesmartfee:
+            estimates = " ".join(
+                    "({: 2d}: {: 8.0f} sat/kB)".format(b, fr*10**8)
+                for b, fr in sorted(self._estimatesmartfee.items())
+            )
+            self._pad.addstr(11, 1, "estimatesmartfee: {}".format(estimates))
+
         self._draw_pad_to_screen()
 
     def _draw_pad_to_screen(self):
@@ -166,6 +174,18 @@ class MonitorView(object):
         if self._visible:
             await self.draw()
 
+    async def on_estimatesmartfee(self, key, obj):
+        try:
+            estimatesmartfee = obj["result"]
+        except KeyError:
+            return
+
+        b, fr = estimatesmartfee["blocks"], estimatesmartfee["feerate"]
+        self._estimatesmartfee[b] = fr
+
+        if self._visible:
+            await self.draw()
+
     async def on_tick(self, dt):
         with await self._lock:
             self._dt = dt