From 9d6f629f6a50f29d8f497b2baaf8623995f87dcd Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Sun, 24 Mar 2019 16:28:14 +0100
Subject: [PATCH] Support adding pairs to blacklist

---
 freqtrade/rpc/rpc.py      |  5 ++++-
 freqtrade/rpc/telegram.py | 11 ++++++-----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/freqtrade/rpc/rpc.py b/freqtrade/rpc/rpc.py
index 687ee9375..cacca4e3c 100644
--- a/freqtrade/rpc/rpc.py
+++ b/freqtrade/rpc/rpc.py
@@ -461,8 +461,11 @@ class RPC(object):
                }
         return res
 
-    def _rpc_blacklist(self) -> Dict:
+    def _rpc_blacklist(self, add: List[str]) -> Dict:
         """ Returns the currently active blacklist"""
+        if add:
+            self._freqtrade.pairlists.blacklist.extend(add)
+
         res = {'method': self._freqtrade.pairlists.name,
                'length': len(self._freqtrade.pairlists.blacklist),
                'blacklist': self._freqtrade.pairlists.blacklist
diff --git a/freqtrade/rpc/telegram.py b/freqtrade/rpc/telegram.py
index 903efe7d1..92108ded9 100644
--- a/freqtrade/rpc/telegram.py
+++ b/freqtrade/rpc/telegram.py
@@ -4,7 +4,7 @@
 This module manage Telegram communication
 """
 import logging
-from typing import Any, Callable, Dict
+from typing import Any, Callable, Dict, List
 
 from tabulate import tabulate
 from telegram import Bot, ParseMode, ReplyKeyboardMarkup, Update
@@ -93,7 +93,7 @@ class Telegram(RPC):
             CommandHandler('reload_conf', self._reload_conf),
             CommandHandler('stopbuy', self._stopbuy),
             CommandHandler('whitelist', self._whitelist),
-            CommandHandler('blacklist', self._blacklist),
+            CommandHandler('blacklist', self._blacklist, pass_args=True),
             CommandHandler('help', self._help),
             CommandHandler('version', self._version),
         ]
@@ -472,15 +472,16 @@ class Telegram(RPC):
             self._send_msg(str(e), bot=bot)
 
     @authorized_only
-    def _blacklist(self, bot: Bot, update: Update) -> None:
+    def _blacklist(self, bot: Bot, update: Update, args: List[str]) -> None:
         """
         Handler for /blacklist
         Shows the currently active blacklist
         """
         try:
-            blacklist = self._rpc_blacklist()
 
-            message = f"Using blacklist `{blacklist['method']}` with {blacklist['length']} pairs\n"
+            blacklist = self._rpc_blacklist(args)
+
+            message = f"Blacklist contains {blacklist['length']} pairs\n"
             message += f"`{', '.join(blacklist['blacklist'])}`"
 
             logger.debug(message)