show max_stake_amount in API

freqtrade/persistence/trade_model.py

@@ -470,6 +470,7 @@ class LocalTrade():
             'amount': round(self.amount, 8),
             'amount_requested': round(self.amount_requested, 8) if self.amount_requested else None,
             'stake_amount': round(self.stake_amount, 8),
+            'max_stake_amount': round(self.max_stake_amount, 8) if self.max_stake_amount else None,
             'strategy': self.strategy,
             'buy_tag': self.enter_tag,
             'enter_tag': self.enter_tag,

freqtrade/rpc/api_server/api_schemas.py

@@ -217,6 +217,7 @@ class TradeSchema(BaseModel):
     amount: float
     amount_requested: float
     stake_amount: float
+    max_stake_amount: Optional[float]
     strategy: str
     buy_tag: Optional[str]  # Deprecated
     enter_tag: Optional[str]

tests/persistence/test_persistence.py

@@ -1359,6 +1359,7 @@ def test_to_json(fee):
                       'amount': 123.0,
                       'amount_requested': 123.0,
                       'stake_amount': 0.001,
+                      'max_stake_amount': None,
                       'trade_duration': None,
                       'trade_duration_s': None,
                       'realized_profit': 0.0,
@@ -1427,6 +1428,7 @@ def test_to_json(fee):
                       'amount': 100.0,
                       'amount_requested': 101.0,
                       'stake_amount': 0.001,
+                      'max_stake_amount': None,
                       'trade_duration': 60,
                       'trade_duration_s': 3600,
                       'stop_loss_abs': None,

tests/rpc/test_rpc.py

@@ -64,6 +64,7 @@ def test_rpc_trade_status(default_conf, ticker, fee, mocker) -> None:
         'amount': 91.07468123,
         'amount_requested': 91.07468124,
         'stake_amount': 0.001,
+        'max_stake_amount': ANY,
         'trade_duration': None,
         'trade_duration_s': None,
         'close_profit': None,

tests/rpc/test_rpc_apiserver.py

@@ -985,6 +985,7 @@ def test_api_status(botclient, mocker, ticker, fee, markets, is_short,
         'base_currency': 'ETH',
         'quote_currency': 'BTC',
         'stake_amount': 0.001,
+        'max_stake_amount': ANY,
         'stop_loss_abs': ANY,
         'stop_loss_pct': ANY,
         'stop_loss_ratio': ANY,
@@ -1188,6 +1189,7 @@ def test_api_force_entry(botclient, mocker, fee, endpoint):
         'base_currency': 'ETH',
         'quote_currency': 'BTC',
         'stake_amount': 1,
+        'max_stake_amount': ANY,
         'stop_loss_abs': None,
         'stop_loss_pct': None,
         'stop_loss_ratio': None,