feat: langgraph python agent intergration

typescript-sdk/apps/dojo/src/agents.ts

@@ -8,7 +8,7 @@ import { MastraClient } from "@mastra/client-js";
 import { MastraAgent } from "@ag-ui/mastra";
 import { VercelAISDKAgent } from "@ag-ui/vercel-ai-sdk";
 import { openai } from "@ai-sdk/openai";
-import { LangGraphAgent } from "@ag-ui/langgraph";
+import { LangGraphAgent, LangGraphHttpAgent } from "@ag-ui/langgraph";
 import { AgnoAgent } from "@ag-ui/agno";
 import { LlamaIndexAgent } from "@ag-ui/llamaindex";
 import { CrewAIAgent } from "@ag-ui/crewai";
@@ -113,6 +113,31 @@ export const agentsIntegrations: AgentIntegrationConfig[] = [
       };
     },
   },
+  {
+    id: "langgraph-fastapi",
+    agents: async () => {
+      return {
+        agentic_chat: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/agentic_chat",
+        }),
+        agentic_generative_ui: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/agentic_generative_ui",
+        }),
+        human_in_the_loop: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/human_in_the_loop",
+        }),
+        predictive_state_updates: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/predictive_state_updates",
+        }),
+        shared_state: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/shared_state",
+        }),
+        tool_based_generative_ui: new LangGraphHttpAgent({
+          url: "http://localhost:8000/agent/tool_based_generative_ui",
+        }),
+      };
+    },
+  },
   {
     id: "agno",
     agents: async () => {

typescript-sdk/apps/dojo/src/menu.ts

@@ -50,6 +50,18 @@ export const menuIntegrations: MenuIntegrationConfig[] = [
       "shared_state",
     ],
   },
+  {
+    id: "langgraph-fastapi",
+    name: "LangGraph FastAPI",
+    features: [
+      "agentic_chat",
+      "human_in_the_loop",
+      "agentic_generative_ui",
+      "tool_based_generative_ui",
+      "predictive_state_updates",
+      "shared_state",
+    ],
+  },
   {
     id: "agno",
     name: "Agno",

typescript-sdk/integrations/langgraph/python/.gitignore

@@ -0,0 +1,140 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db

typescript-sdk/integrations/langgraph/python/ag_ui_langgraph/__init__.py

@@ -0,0 +1,35 @@
+from .agent import LangGraphAgent
+from .types import (
+    LangGraphEventTypes,
+    CustomEventNames,
+    State,
+    SchemaKeys,
+    MessageInProgress,
+    RunMetadata,
+    MessagesInProgressRecord,
+    ToolCall,
+    BaseLangGraphPlatformMessage,
+    LangGraphPlatformResultMessage,
+    LangGraphPlatformActionExecutionMessage,
+    LangGraphPlatformMessage,
+    PredictStateTool
+)
+from .endpoint import add_langgraph_fastapi_endpoint
+
+__all__ = [
+    "LangGraphAgent",
+    "LangGraphEventTypes",
+    "CustomEventNames",
+    "State",
+    "SchemaKeys",
+    "MessageInProgress",
+    "RunMetadata",
+    "MessagesInProgressRecord",
+    "ToolCall",
+    "BaseLangGraphPlatformMessage",
+    "LangGraphPlatformResultMessage",
+    "LangGraphPlatformActionExecutionMessage",
+    "LangGraphPlatformMessage",
+    "PredictStateTool",
+    "add_langgraph_fastapi_endpoint"
+]