docs[patch]: Fix Code in Managing Conversation History (#6252)

* [Docs] Fix Code in Managing Conversation History * Apply suggestions from code review * Update docs/core_docs/docs/tutorials/chatbot.ipynb * Fix type errors --------- Co-authored-by: Brace Sproul <braceasproul@gmail.com>
langchain-ai · Jul 29, 2024 · 8718e3b · 8718e3b
1 parent 023a581
commit 8718e3b
Showing 1 changed file with 34 additions and 31 deletions.
diff --git a/docs/core_docs/docs/tutorials/chatbot.ipynb b/docs/core_docs/docs/tutorials/chatbot.ipynb
@@ -447,17 +447,17 @@
     }
    ],
    "source": [
-    "const config = {\n",
+    "const config2 = {\n",
     "  configurable: {\n",
     "    sessionId: \"abc3\"\n",
     "  }\n",
     "};\n",
     "\n",
-    "const response = await withMessageHistory.invoke({\n",
+    "const response2 = await withMessageHistory.invoke({\n",
     "  input: \"What's my name?\",\n",
-    "}, config);\n",
+    "}, config2);\n",
     "\n",
-    "response.content"
+    "response2.content"
    ]
   },
   {
@@ -484,17 +484,17 @@
     }
    ],
    "source": [
-    "const config = {\n",
+    "const config3 = {\n",
     "  configurable: {\n",
     "    sessionId: \"abc2\"\n",
     "  }\n",
     "};\n",
     "\n",
-    "const response = await withMessageHistory.invoke({\n",
+    "const response3 = await withMessageHistory.invoke({\n",
     "  input: \"What's my name?\",\n",
-    "}, config);\n",
+    "}, config3);\n",
     "\n",
-    "response.content"
+    "response3.content"
    ]
   },
   {
@@ -526,11 +526,14 @@
     "import type { BaseMessage } from \"@langchain/core/messages\";\n",
     "import { RunnablePassthrough, RunnableSequence } from \"@langchain/core/runnables\";\n",
     "\n",
-    "const filterMessages = ({ chat_history }: { chat_history: BaseMessage[]; }) => {\n",
-    "  return chat_history.slice(-10);\n",
-    "};\n",
+    "type ChainInput = {\n",
+    "  chat_history: BaseMessage[];\n",
+    "  input: string;\n",
+    "}\n",
     "\n",
-    "const chain = RunnableSequence.from([\n",
+    "const filterMessages = (input: ChainInput) => input.chat_history.slice(-10);\n",
+    "\n",
+    "const chain2 = RunnableSequence.from<ChainInput>([\n",
     "  RunnablePassthrough.assign({\n",
     "    chat_history: filterMessages\n",
     "  }),\n",
@@ -585,13 +588,13 @@
     }
    ],
    "source": [
-    "const response = await chain.invoke(\n",
+    "const response4 = await chain2.invoke(\n",
     "  {\n",
     "    chat_history: messages,\n",
     "    input: \"what's my name?\"\n",
     "  }\n",
     ")\n",
-    "response.content"
+    "response4.content"
    ]
   },
   {
@@ -618,13 +621,13 @@
     }
    ],
    "source": [
-    "const response = await chain.invoke(\n",
+    "const response5 = await chain2.invoke(\n",
     "  {\n",
     "    chat_history: messages,\n",
     "    input: \"what's my fav ice cream\"\n",
     "  }\n",
     ")\n",
-    "response.content"
+    "response5.content"
    ]
   },
   {
@@ -651,36 +654,36 @@
     }
    ],
    "source": [
-    "const messageHistories: Record<string, InMemoryChatMessageHistory> = {};\n",
+    "const messageHistories2: Record<string, InMemoryChatMessageHistory> = {};\n",
     "\n",
-    "const withMessageHistory = new RunnableWithMessageHistory({\n",
+    "const withMessageHistory2 = new RunnableWithMessageHistory({\n",
     "  runnable: chain,\n",
     "  getMessageHistory: async (sessionId) => {\n",
-    "    if (messageHistories[sessionId] === undefined) {\n",
+    "    if (messageHistories2[sessionId] === undefined) {\n",
     "      const messageHistory = new InMemoryChatMessageHistory();\n",
     "      await messageHistory.addMessages(messages);\n",
-    "      messageHistories[sessionId] = messageHistory;\n",
+    "      messageHistories2[sessionId] = messageHistory;\n",
     "    }\n",
-    "    return messageHistories[sessionId];\n",
+    "    return messageHistories2[sessionId];\n",
     "  },\n",
     "  inputMessagesKey: \"input\",\n",
     "  historyMessagesKey: \"chat_history\",\n",
     "})\n",
     "\n",
-    "const config = {\n",
+    "const config4 = {\n",
     "  configurable: {\n",
     "    sessionId: \"abc4\"\n",
     "  }\n",
     "};\n",
     "\n",
-    "const response = await withMessageHistory.invoke(\n",
+    "const response7 = await withMessageHistory2.invoke(\n",
     "  {\n",
     "    input: \"whats my name?\",\n",
     "  },\n",
-    "  config,\n",
+    "  config4,\n",
     ")\n",
     "\n",
-    "response.content"
+    "response7.content"
    ]
   },
   {
@@ -707,11 +710,11 @@
     }
    ],
    "source": [
-    "const response = await withMessageHistory.invoke({\n",
+    "const response8 = await withMessageHistory2.invoke({\n",
     "  input: \"whats my favorite ice cream?\"\n",
-    "}, config);\n",
+    "}, config4);\n",
     "\n",
-    "response.content"
+    "response8.content"
    ]
   },
   {
@@ -780,15 +783,15 @@
     }
    ],
    "source": [
-    "const config = {\n",
+    "const config5 = {\n",
     "  configurable: {\n",
     "    sessionId: \"abc6\"\n",
     "  }\n",
     "};\n",
     "\n",
-    "const stream = await withMessageHistory.stream({\n",
+    "const stream = await withMessageHistory2.stream({\n",
     "  input: \"hi! I'm todd. tell me a joke\",\n",
-    "}, config);\n",
+    "}, config5);\n",
     "\n",
     "for await (const chunk of stream) {\n",
     "  console.log(\"|\", chunk.content);\n",