From a2ccc1526e30f2e1e68032464173c742c152ca90 Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Tue, 29 Jun 2021 07:07:34 +0200
Subject: [PATCH] Load parameters from file

---
 freqtrade/resolvers/strategy_resolver.py | 15 +++++++++++++++
 freqtrade/strategy/hyper.py              |  3 ++-
 freqtrade/strategy/interface.py          |  1 +
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/freqtrade/resolvers/strategy_resolver.py b/freqtrade/resolvers/strategy_resolver.py
index ccd7cea69..1239b78b3 100644
--- a/freqtrade/resolvers/strategy_resolver.py
+++ b/freqtrade/resolvers/strategy_resolver.py
@@ -53,6 +53,21 @@ class StrategyResolver(IResolver):
                     )
                 strategy.timeframe = strategy.ticker_interval
 
+        if strategy._ft_params_from_file:
+            # Set parameters from Hyperopt results file
+            params = strategy._ft_params_from_file
+            strategy.minimal_roi = params.get('roi', strategy.minimal_roi)
+
+            strategy.stoploss = params.get('stoploss', {}).get('stoploss', strategy.stoploss)
+            trailing = params.get('trailing', {})
+            strategy.trailing_stop = trailing.get('trailing_stop', strategy.trailing_stop)
+            strategy.trailing_stop_positive = trailing.get('trailing_stop_positive',
+                                                           strategy.trailing_stop_positive)
+            strategy.trailing_stop_positive_offset = trailing.get(
+                'trailing_stop_positive_offset', strategy.trailing_stop_positive_offset)
+            strategy.trailing_only_offset_is_reached = trailing.get(
+                'trailing_only_offset_is_reached', strategy.trailing_only_offset_is_reached)
+
         # Set attributes
         # Check if we need to override configuration
         #             (Attribute name,                    default,     subkey)
diff --git a/freqtrade/strategy/hyper.py b/freqtrade/strategy/hyper.py
index 0ced4dfb1..6f96224ee 100644
--- a/freqtrade/strategy/hyper.py
+++ b/freqtrade/strategy/hyper.py
@@ -309,6 +309,7 @@ class HyperStrategyMixin(object):
         """
         params = self.load_params_from_file()
         params = params.get('params', {})
+        self._ft_params_from_file = params
         buy_params = deep_merge_dicts(params.get('buy', {}), getattr(self, 'buy_params', None))
         sell_params = deep_merge_dicts(params.get('sell', {}), getattr(self, 'sell_params', None))
 
@@ -324,7 +325,7 @@ class HyperStrategyMixin(object):
         if filename.is_file():
             logger.info(f"Loading parameters from file {filename}")
             params = json_load(filename.open('r'))
-            if params.get('strategy_name') != self.get_strategy_name():
+            if params.get('strategy_name') != self.__class__.__name__:
                 raise OperationalException('Invalid parameter file provided')
             return params
         logger.info("Found no parameter file.")
diff --git a/freqtrade/strategy/interface.py b/freqtrade/strategy/interface.py
index 7aa7e57d9..26bcb0369 100644
--- a/freqtrade/strategy/interface.py
+++ b/freqtrade/strategy/interface.py
@@ -62,6 +62,7 @@ class IStrategy(ABC, HyperStrategyMixin):
     _populate_fun_len: int = 0
     _buy_fun_len: int = 0
     _sell_fun_len: int = 0
+    _ft_params_from_file: Dict = {}
     # associated minimal roi
     minimal_roi: Dict