Move pretty printing of sessions to client

Tweak logging

electrumx_rpc.py

@@ -13,6 +13,7 @@
 import argparse
 import asyncio
 import json
+import pprint
 from functools import partial
 from os import environ
 
@@ -21,6 +22,7 @@ class RPCClient(asyncio.Protocol):
 
     def __init__(self, loop):
         self.loop = loop
+        self.method = None
 
     def connection_made(self, transport):
         self.transport = transport
@@ -28,15 +30,28 @@ class RPCClient(asyncio.Protocol):
     def connection_lost(self, exc):
         self.loop.stop()
 
-    def send(self, payload):
+    def send(self, method, params):
+        self.method = method
+        payload = {'method': method, 'params': params}
         data = json.dumps(payload) + '\n'
         self.transport.write(data.encode())
 
     def data_received(self, data):
         payload = json.loads(data.decode())
         self.transport.close()
-        print(json.dumps(payload, indent=4, sort_keys=True))
+        result = payload['result']
-
+        error = payload['error']
+        if error:
+            print("ERROR: {}".format(error))
+        else:
+            if self.method == 'sessions':
+                fmt = '{:<4} {:>23} {:>7} {:>15} {:>7}'
+                print(fmt.format('Type', 'Peer', 'Subs', 'Client', 'Time'))
+                for kind, peer, subs, client, time in result:
+                    print(fmt.format(kind, peer, '{:,d}'.format(subs)
+                                     client, '{:,d}'.format(int(time)))
+            else:
+                pprint.pprint(result, indent=4)
 
 def main():
     '''Send the RPC command to the server and print the result.'''
@@ -52,14 +67,12 @@ def main():
     if args.port is None:
         args.port = int(environ.get('ELECTRUMX_RPC_PORT', 8000))
 
-    payload = {'method': args.command[0], 'params': args.param}
-
     loop = asyncio.get_event_loop()
     proto_factory = partial(RPCClient, loop)
     coro = loop.create_connection(proto_factory, 'localhost', args.port)
     try:
         transport, protocol = loop.run_until_complete(coro)
-        protocol.send(payload)
+        protocol.send(args.command[0], args.param)
         loop.run_forever()
     except OSError:
         print('error connecting - is ElectrumX catching up or not running?')

server/daemon.py

@@ -31,7 +31,7 @@ class Daemon(util.LoggedClass):
         super().__init__()
         self.url = url
         self._height = None
-        self.logger.info('connecting to daemon at URL {}'.format(url))
+        self.logger.info('connecting at URL {}'.format(url))
         self.debug_caught_up = 'caught_up' in debug
         # Limit concurrent RPC calls to this number.
         # See DEFAULT_HTTP_WORKQUEUE in bitcoind, which is typically 16

server/protocol.py

@@ -632,15 +632,9 @@ class LocalRPC(JSONRPC):
 
     async def sessions(self, params):
         now = time.time()
-        fmt = '{:<4} {:>21} {:>7} {:>12} {:>7}'
+        return [(session.kind, session.peername, len(session.hash168s),
-        result = []
+                 session.client, now - session.start)
-        result.append(fmt.format('Type', 'Peer', 'Subs', 'Client', 'Time'))
+                for session in self.SESSION_MGR.sessions]
-        for session in self.SESSION_MGR.sessions:
-            result.append(fmt.format(session.kind, session.peername,
-                                     '{:,d}'.format(len(session.hash168s)),
-                                     session.client,
-                                     '{:,d}'.format(int(now - session.start))))
-        return result
 
     async def numsessions(self, params):
         return len(self.SESSION_MGR.sessions)