Merge pull request #249 from UiPath/chore/check-langgraph-config-dev

chore: verify langgraph config on dev middleware

Author: radu-mocanu

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "uipath-langchain"
-version = "0.0.148"
+version = "0.0.149"
 description = "UiPath Langchain"
 readme = { file = "README.md", content-type = "text/markdown" }
 requires-python = ">=3.10"

src/uipath_langchain/_cli/cli_dev.py

@@ -13,12 +13,18 @@
 from .._tracing import _instrument_traceable_attributes
 from ._runtime._context import LangGraphRuntimeContext
 from ._runtime._runtime import LangGraphScriptRuntime
+from ._utils._graph import LangGraphConfig
 
 console = ConsoleLogger()
 
 
 def langgraph_dev_middleware(interface: Optional[str]) -> MiddlewareResult:
     """Middleware to launch the developer terminal"""
+    config = LangGraphConfig()
+    if not config.exists:
+        return MiddlewareResult(
+            should_continue=True
+        )  # Continue with normal flow if no langgraph.json
 
     try:
         if interface == "terminal":