proper validation of freqai config parameters

freqtrade/configuration/config_validation.py

@@ -85,6 +85,7 @@ def validate_config_consistency(conf: Dict[str, Any], preliminary: bool = False)
     _validate_unlimited_amount(conf)
     _validate_ask_orderbook(conf)
     validate_migrated_strategy_settings(conf)
+    _validate_freqai(conf)
 
     # validate configuration before returning
     logger.info('Validating configuration ...')
@@ -163,6 +164,21 @@ def _validate_edge(conf: Dict[str, Any]) -> None:
         )
 
 
+def _validate_freqai(conf: Dict[str, Any]) -> None:
+    """
+    Freqai param validator
+    """
+
+    if not conf.get('freqai', {}):
+        return
+
+    for param in constants.SCHEMA_FREQAI_REQUIRED:
+        if param not in conf.get('freqai', {}):
+            raise OperationalException(
+                f'{param} not found in Freqai config'
+            )
+
+
 def _validate_whitelist(conf: Dict[str, Any]) -> None:
     """
     Dynamic whitelist does not require pair_whitelist to be set - however StaticWhitelist does.