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2026-08-16 15:37:10 +08:00
parent b3f3b72f07
commit 6163f5b1be
5 changed files with 472 additions and 13557 deletions
@@ -0,0 +1,119 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "id": "initial_id",
+   "metadata": {
+    "collapsed": true
+   },
+   "source": [
+    "from typing import TypedDict\n",
+    "from loguru import logger\n",
+    "import time\n",
+    "\n",
+    "\n",
+    "class OverallState(TypedDict):\n",
+    "    initial_input: str\n",
+    "    node_a1: str\n",
+    "    node_a2: str\n",
+    "    node_b: str\n",
+    "\n",
+    "\n",
+    "def node_a1(state: OverallState) -> OverallState:\n",
+    "    time.sleep(1)\n",
+    "    logger.info(\"node_a1\")\n",
+    "    return OverallState(node_a1=\"node_a1\")\n",
+    "\n",
+    "\n",
+    "def node_a2(state: OverallState) -> OverallState:\n",
+    "    time.sleep(3)\n",
+    "    logger.info(\"node_a2\")\n",
+    "\n",
+    "    return OverallState(node_a2=\"node_a2\")\n",
+    "\n",
+    "\n",
+    "def node_b(state: OverallState) -> OverallState:\n",
+    "    time.sleep(1)\n",
+    "    logger.info(\"node_b\")\n",
+    "    return OverallState(node_b=\"node_b\")"
+   ],
+   "outputs": [],
+   "execution_count": null
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "source": [
+    "from langgraph.graph import StateGraph, START, END\n",
+    "from langgraph.checkpoint.memory import InMemorySaver\n",
+    "\n",
+    "builder = StateGraph(state_schema=OverallState)\n",
+    "builder.add_node(\"node_a1\", node_a1)\n",
+    "builder.add_node(\"node_a2\", node_a2)\n",
+    "builder.add_node(\"node_b\", node_b)\n",
+    "\n",
+    "builder.add_edge(START, \"node_a1\")\n",
+    "builder.add_edge(START, \"node_a2\")\n",
+    "builder.add_edge([\"node_a1\", \"node_a2\"], \"node_b\")\n",
+    "builder.add_edge(\"node_b\", END)\n",
+    "\n",
+    "checkpoint_saver = InMemorySaver()\n",
+    "\n",
+    "graph = builder.compile(checkpointer=checkpoint_saver)\n",
+    "\n",
+    "from IPython.display import display\n",
+    "\n",
+    "display(graph)"
+   ],
+   "id": "87e186e33e43ad5f",
+   "outputs": [],
+   "execution_count": null
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "source": [
+    "from rich import print as rp\n",
+    "\n",
+    "config = {\n",
+    "    \"configurable\": {\n",
+    "        \"thread_id\": \"12345\"\n",
+    "    }\n",
+    "}\n",
+    "\n",
+    "for chunk in graph.stream(\n",
+    "        {\"initial_input\": \"init\"},\n",
+    "        stream_mode=[\"checkpoints\"],\n",
+    "        config=config\n",
+    "):\n",
+    "    print(\"=\" * 50)\n",
+    "    # print(chunk)\n",
+    "    rp(chunk)"
+   ],
+   "id": "80bb26c320de30c7",
+   "outputs": [],
+   "execution_count": null
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}