feat: added new uipath_langchain_client and refactor code base to use it

Author: cosminacho

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "uipath-langchain"
-version = "0.8.28"
+version = "0.9.0"
 description = "Python SDK that enables developers to build and deploy LangGraph agents to the UiPath Cloud Platform"
 readme = { file = "README.md", content-type = "text/markdown" }
 requires-python = ">=3.11"
@@ -12,7 +12,6 @@ dependencies = [
     "langgraph>=1.0.0, <2.0.0",
     "langchain-core>=1.2.11, <2.0.0",
     "langgraph-checkpoint-sqlite>=3.0.3, <4.0.0",
-    "langchain-openai>=1.0.0, <2.0.0",
     "langchain>=1.0.0, <2.0.0",
     "pydantic-settings>=2.6.0",
     "python-dotenv>=1.0.1",
@@ -22,6 +21,7 @@ dependencies = [
     "jsonpath-ng>=1.7.0",
     "mcp==1.26.0",
     "langchain-mcp-adapters==0.2.1",
+    "uipath-langchain-client[openai]>=1.5.5",
 ]
 
 classifiers = [
@@ -37,8 +37,19 @@ maintainers = [
 ]
 
 [project.optional-dependencies]
-vertex = ["langchain-google-genai>=2.0.0", "google-generativeai>=0.8.0"]
-bedrock = ["langchain-aws>=0.2.35", "boto3-stubs>=1.41.4"]
+anthropic = [
+    "uipath-langchain-client[anthropic]>=1.5.5",
+]
+vertex = [
+    "uipath-langchain-client[google]>=1.5.5",
+    "uipath-langchain-client[vertexai]>=1.5.5",
+]
+bedrock = [
+    "uipath-langchain-client[aws]>=1.5.5",
+]
+all = [
+    "uipath-langchain-client[all]>=1.5.5",
+]
 
 [project.entry-points."uipath.middlewares"]
 register = "uipath_langchain.middlewares:register_middleware"

samples/chat-hitl-agent/graph.py

@@ -1,7 +1,7 @@
 from langchain_anthropic import ChatAnthropic
 from langchain_tavily import TavilySearch
 from langchain.agents import create_agent
-from uipath_langchain.chat import requires_approval
+from uipath_langchain.chat.hitl import requires_approval
 
 tavily_tool = TavilySearch(max_results=5)
 

src/uipath_langchain/_utils/__init__.py

@@ -1,4 +1,3 @@
 from ._environment import get_execution_folder_path
-from ._request_mixin import UiPathRequestMixin
 
-__all__ = ["UiPathRequestMixin", "get_execution_folder_path"]
+__all__ = ["get_execution_folder_path"]