feat(connectors): expose config field prompts in the config-map endpoint

routers/connectors.py

@@ -36,19 +36,21 @@ async def get_connector_config_map(connector_name: str, accounts_service: Accoun
         Each field contains:
         - type: The expected data type (e.g., "str", "SecretStr", "int")
         - required: Whether the field is required
+        - allowed_values: List of accepted values (only for Literal fields)
+        - prompt: Human readable prompt from the Hummingbot config map (when defined)
     """
     return accounts_service.get_connector_config_map(connector_name)
 
 
 @router.get("/{connector_name}/trading-rules")
 async def get_trading_rules(
-    request: Request, 
+    request: Request,
     connector_name: str,
     trading_pairs: Optional[List[str]] = Query(default=None, description="Filter by specific trading pairs")
 ):
     """
     Get trading rules for a connector, optionally filtered by trading pairs.
-    
+
     This endpoint uses the MarketDataService to access non-trading connector instances,
     which means no authentication or account setup is required.
 
@@ -68,12 +70,12 @@ async def get_trading_rules(
 
         # Get trading rules (filtered by trading pairs if provided)
         rules = await market_data_service.get_trading_rules(connector_name, trading_pairs)
-        
+
         if "error" in rules:
             raise HTTPException(status_code=404, detail=f"Connector '{connector_name}' not found or error: {rules['error']}")
-        
+
         return rules
-        
+
     except HTTPException:
         raise
     except Exception as e:

services/unified_connector_service.py

@@ -1361,10 +1361,41 @@ def get_connector_config_map(connector_name: str):
             field_info = {"type": type_name, "required": field.is_required()}
             if allowed_values is not None:
                 field_info["allowed_values"] = allowed_values
+
+            prompt = UnifiedConnectorService._resolve_field_prompt(
+                field, connector_config.hb_config
+            )
+            if prompt is not None:
+                field_info["prompt"] = prompt
+
             fields_info[key] = field_info
 
         return fields_info
 
+    @staticmethod
+    def _resolve_field_prompt(field, config_map) -> Optional[str]:
+        """Resolve the Hummingbot prompt of a config field, if it defines one.
+
+        Prompts are stored in ``json_schema_extra`` either as a plain string or as
+        a callable taking the config map, so callables are evaluated here.
+        """
+        extra = field.json_schema_extra
+        if not isinstance(extra, dict):
+            return None
+
+        prompt = extra.get("prompt")
+        if prompt is None:
+            return None
+
+        if callable(prompt):
+            try:
+                prompt = prompt(config_map)
+            except Exception as e:
+                logger.debug(f"Could not resolve prompt for config field: {e}")
+                return None
+
+        return str(prompt) if prompt is not None else None
+
     # =========================================================================
     # Cleanup
     # =========================================================================