Merge pull request #1269 from freqtrade/feat/force_buy

add /forcebuy to telgram handler

freqtrade/rpc/rpc.py

@@ -385,6 +385,40 @@ class RPC(object):
         _exec_forcesell(trade)
         Trade.session.flush()
 
+    def _rpc_forcebuy(self, pair: str, price: Optional[float]) -> Optional[Trade]:
+        """
+        Handler for forcebuy <asset> <price>
+        Buys a pair trade at the given or current price
+        """
+
+        if not self._freqtrade.config.get('forcebuy_enable', False):
+            raise RPCException('Forcebuy not enabled.')
+
+        if self._freqtrade.state != State.RUNNING:
+            raise RPCException('trader is not running')
+
+        # Check pair is in stake currency
+        stake_currency = self._freqtrade.config.get('stake_currency')
+        if not pair.endswith(stake_currency):
+            raise RPCException(
+                f'Wrong pair selected. Please pairs with stake {stake_currency} pairs only')
+        # check if valid pair
+
+        # check if pair already has an open pair
+        trade = Trade.query.filter(Trade.is_open.is_(True)).filter(Trade.pair.is_(pair)).first()
+        if trade:
+            raise RPCException(f'position for {pair} already open - id: {trade.id}')
+
+        # gen stake amount
+        stakeamount = self._freqtrade._get_trade_stake_amount()
+
+        # execute buy
+        if self._freqtrade.execute_buy(pair, stakeamount, price):
+            trade = Trade.query.filter(Trade.is_open.is_(True)).filter(Trade.pair.is_(pair)).first()
+            return trade
+        else:
+            return None
+
     def _rpc_performance(self) -> List[Dict]:
         """
         Handler for performance.