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| 1 | +import { ChatOpenAI } from "@langchain/openai"; |
| 2 | +import { ConversationChain } from "langchain/chains"; |
| 3 | +import { Mem0Memory } from "@langchain/community/memory/mem0"; |
| 4 | +import { randomUUID } from "crypto"; |
| 5 | + |
| 6 | +const sessionId = randomUUID(); // This should be unique for each user or each user's session. |
| 7 | + |
| 8 | +const memory = new Mem0Memory({ |
| 9 | + apiKey: "your-api-key", |
| 10 | + sessionId, |
| 11 | + memoryOptions: { |
| 12 | + run_id: "run123", // Optional, if you want to save the conversation to a specific run. |
| 13 | + }, |
| 14 | +}); |
| 15 | + |
| 16 | +const model = new ChatOpenAI({ |
| 17 | + modelName: "gpt-3.5-turbo", |
| 18 | + temperature: 0, |
| 19 | +}); |
| 20 | + |
| 21 | +const chain = new ConversationChain({ llm: model, memory }); |
| 22 | +console.log("Memory Keys:", memory.memoryKeys); |
| 23 | + |
| 24 | +const res1 = await chain.invoke({ |
| 25 | + input: "Hi! I am Jim and I live in Finland", |
| 26 | +}); |
| 27 | +console.log({ res1 }); |
| 28 | +/* |
| 29 | +{ |
| 30 | + res1: { |
| 31 | + response: "Hello Jim! It's nice to meet you. My name is AI. How may I assist you today?" |
| 32 | + } |
| 33 | +} |
| 34 | +*/ |
| 35 | + |
| 36 | +const res2 = await chain.invoke({ input: "What did I just say my name was?" }); |
| 37 | +console.log({ res2 }); |
| 38 | + |
| 39 | +/* |
| 40 | +{ |
| 41 | + res2: { |
| 42 | + response: "You said your name was Jim." |
| 43 | + } |
| 44 | +} |
| 45 | +*/ |
| 46 | + |
| 47 | +const res3 = await chain.invoke({ input: "Where do I live?" }); |
| 48 | +console.log({ res3 }); |
| 49 | + |
| 50 | +/* |
| 51 | +{ |
| 52 | + res3: { |
| 53 | + response: "You live in Finland, Jim." |
| 54 | + } |
| 55 | +} |
| 56 | +*/ |
| 57 | + |
| 58 | +console.log("Session ID: ", sessionId); |
| 59 | +console.log("Memory: ", await memory.loadMemoryVariables({})); |
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