fix: anthropic Model component base url empty issue (#7872)

* Update anthropic.py

* updates to templates

* [autofix.ci] apply automated fixes

* update the templates

* Refactor Anthropic API URL handling to use a constant. Introduced DEFAULT_ANTHROPIC_API_URL in anthropic_constants.py and updated references in anthropic.py for improved maintainability and clarity.

* [autofix.ci] apply automated fixes

* Refactor AnthropicModelComponent to streamline API URL handling. Removed unnecessary base_url checks and ensured consistent use of DEFAULT_ANTHROPIC_API_URL for improved clarity and maintainability.

* [autofix.ci] apply automated fixes

* Fix base_url check in update_build_config to ensure key existence before accessing value

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

src/backend/base/langflow/base/models/anthropic_constants.py

@@ -28,3 +28,6 @@ DEPRECATED_MODELS = [
     "claude-3-5-haiku-20241022",
     "claude-3-haiku-20240307",
 ]
+
+
+DEFAULT_ANTHROPIC_API_URL = "https://api.anthropic.com"

src/backend/base/langflow/components/models/anthropic.py

@@ -1,10 +1,11 @@
-from typing import Any
+from typing import Any, cast
 
 import requests
 from loguru import logger
 
 from langflow.base.models.anthropic_constants import (
     ANTHROPIC_MODELS,
+    DEFAULT_ANTHROPIC_API_URL,
     TOOL_CALLING_SUPPORTED_ANTHROPIC_MODELS,
     TOOL_CALLING_UNSUPPORTED_ANTHROPIC_MODELS,
 )
@@ -58,8 +59,9 @@ class AnthropicModelComponent(LCModelComponent):
             name="base_url",
             display_name="Anthropic API URL",
             info="Endpoint of the Anthropic API. Defaults to 'https://api.anthropic.com' if not specified.",
-            value="https://api.anthropic.com",
+            value=DEFAULT_ANTHROPIC_API_URL,
             real_time_refresh=True,
+            advanced=True,
         ),
         BoolInput(
             name="tool_model_enabled",
@@ -88,7 +90,7 @@ class AnthropicModelComponent(LCModelComponent):
                 anthropic_api_key=self.api_key,
                 max_tokens_to_sample=self.max_tokens,
                 temperature=self.temperature,
-                anthropic_api_url=self.base_url,
+                anthropic_api_url=DEFAULT_ANTHROPIC_API_URL,
                 streaming=self.stream,
             )
         except Exception as e:
@@ -125,7 +127,7 @@ class AnthropicModelComponent(LCModelComponent):
                 model_with_tool = ChatAnthropic(
                     model=model,  # Use the current model being checked
                     anthropic_api_key=self.api_key,
-                    anthropic_api_url=self.base_url,
+                    anthropic_api_url=cast(str, self.base_url) or DEFAULT_ANTHROPIC_API_URL,
                 )
 
                 if (
@@ -160,6 +162,9 @@ class AnthropicModelComponent(LCModelComponent):
         return None
 
     def update_build_config(self, build_config: dotdict, field_value: Any, field_name: str | None = None):
+        if "base_url" in build_config and build_config["base_url"]["value"] is None:
+            build_config["base_url"]["value"] = DEFAULT_ANTHROPIC_API_URL
+            self.base_url = DEFAULT_ANTHROPIC_API_URL
         if field_name in {"base_url", "model_name", "tool_model_enabled", "api_key"} and field_value:
             try:
                 if len(self.api_key) == 0: