Namspaces not created even if my program running sucessfully?

[anshul]

Retrieve all vector IDs

An endpoint to retrieve all of the vector IDs stored in the index without supplying a query vector first.

this is my matches.ts file

hiii
TypeError: Cannot read properties of null (reading ‘Index’)
at getMatchesFromEmbeddings (webpack-internal:///(api)/./src/pages/api/matches.ts:17:28)
i am getting this error after updation of new pinecone dependencies
import { Pinecone } from ‘@pinecone-database/pinecone’; this one

// import { Pinecone, ScoredVector } from “@pinecone-database/pinecone”;
// import { Pinecone, ScoredVector } from “@pinecone-database/pinecone”;

import { Pinecone } from ‘@pinecone-database/pinecone’;
import {PineconeRecord} from ‘@pinecone-database/pinecone’;

export type Metadata = {
url: string,
text: string,
chunk: string,
}
console.log(“metaadataaaa”)
let pinecone: Pinecone | null = null

const getMatchesFromEmbeddings = async (embeddings: number,topK: number,namespace: string): Promise => {
if (!process.env.PINECONE_INDEX_NAME) {
console.log(“process.env.PINECONE_INDEX_NAME”,process.env.PINECONE_INDEX_NAME)
throw (new Error(“PINECONE_INDEX_NAME is not set”))
}

console.log(“pineone=>>>>>>>>>>>>>>>>>>>>>>>>>>>>”,pinecone)
console.log(“hiiiiiii>>>>>>”)
console.log(“process.env.PINECONE_INDEX_NAME”,process.env.PINECONE_INDEX_NAME)
const index = pinecone!.Index(process.env.PINECONE_INDEX_NAME)

console.log(“indexxxxx==>>>>>”,index)
const queryRequest = {
vector: embeddings,
topK,
includeMetadata: true,
namespace,
}
console.log(queryRequest,“queryRequest=>>>>>>>>>>>>>>>>>>>>”)
try {

const queryResult = await index.query(queryRequest)

return queryResult.matches?.map(match => ({
  ...match,
  metadata: match.metadata as Metadata
})) || []

} catch (e) {
console.log("Error querying embeddings: ", e)
throw (new Error(Error querying embeddings: ${e},))
}
}

export { getMatchesFromEmbeddings }

this is my chat .ts file

// // Next.js API route support: Routing: API Routes | Next.js
// import { PineconeClient } from “@pinecone-database/pinecone”;
// // import * as Ably from ‘ably’;
// // import { CallbackManager } from “langchain/callbacks”;
// import { CallbackManager } from “@langchain/core/callbacks/manager”;
// // import { LLMChain } from “langchain/chains”;
// import { LLMChain } from “langchain/chains”;
// // import { ChatOpenAI } from “langchain/chat_models/openai”;
// // import { OpenAIEmbeddings } from ‘langchain/embeddings/openai’;
// import { OpenAIEmbeddings, ChatOpenAI, OpenAI } from ‘@langchain/openai’;
// // import { OpenAI } from “langchain/llms/openai”;
// // import { OpenAI } from “@langchain/openai”;
// // import { PromptTemplate } from “langchain/prompts”;
// import { PromptTemplate } from “@langchain/core/prompts”;
// import type { NextApiRequest, NextApiResponse } from ‘next’;
// import { uuid } from ‘uuidv4’;
// import { summarizeLongDocument } from ‘./summarizer’;

// import { ConversationLog } from ‘./conversationLog’;
// import { Metadata, getMatchesFromEmbeddings } from ‘./matches’;
// import { templates } from ‘./templates’;

// const llm = new OpenAI({});
// let pinecone: PineconeClient | null = null

// const initPineconeClient = async () => {
// pinecone = new PineconeClient();
// console.log(“pinecone======>>>>>>>”,pinecone)

// await pinecone.init({
// environment: process.env.PINECONE_ENVIRONMENT!,
// apiKey: process.env.PINECONE_API_KEY!,
// });
// }

console.log(“hiiii”)

import { Pinecone } from ‘@pinecone-database/pinecone’;

// import { PineconeClient } from “@pinecone-database/pinecone”;
import { CallbackManager } from “@langchain/core/callbacks/manager”;
import { LLMChain } from “langchain/chains”;
import { OpenAIEmbeddings, ChatOpenAI, OpenAI } from ‘@langchain/openai’;
import { PromptTemplate } from “@langchain/core/prompts”;
import type { NextApiRequest, NextApiResponse } from ‘next’;
import { uuid } from ‘uuidv4’;
import { summarizeLongDocument } from ‘./summarizer’;
import { ConversationLog } from ‘./conversationLog’;
import { Metadata, getMatchesFromEmbeddings } from ‘./matches’;
import { templates } from ‘./templates’;

// Initialize PineconeClient
// const pinecone = new PineconeClient();
// const llm = new OpenAI({});

// const initPineconeClient = async () => {
// console.log(“Initializing PineconeClient…”);
// await pinecone.init({
// apiKey: process.env.PINECONE_API_KEY!,
// });
// console.log(“PineconeClient initialized successfully!”);
// }
// initPineconeClient().catch(error => {
// console.error(“Error initializing PineconeClient:”, error);
// });

// console.log(“PineconeClient instance:”, pinecone);

// console.log(“initPineconeClient========>>>>>>”,initPineconeClient)

console.log(“in the code>>>>>>”)
const llm = new OpenAI({});
let pinecone: Pinecone | null = null

const pc = new Pinecone({ apiKey: process.env.PINECONE_API_KEY!});
console.log(“PineconeClient instance:”, pc);

// const initPineconeClient = async () => {
// console.log(“Initializing PineconeClient…”);
// // await pinecone({
// // apiKey: process.env.PINECONE_API_KEY!,
// // });
// console.log(“PineconeClient initialized successfully!”);
// }
const initPineconeClient = async () => {
console.log(“Initializing PineconeClient…”);
const pc = new Pinecone({ apiKey: process.env.PINECONE_API_KEY! });
console.log(“PineconeClient initialized successfully!”,pc);
return pc; // Optionally return the Pinecone client for further usage
}

import { NextApiResponseServerIO } from “…/…/types/next”;
import { Namespace } from ‘socket.io’;

const handleRequest = async ({ prompt, userId, socketIO }: { prompt: string, userId: string, socketIO: any }) => {
if (!pinecone) {
await initPineconeClient();
}
console.log(“handleRequest”,handleRequest)

let summarizedCount = 0;

try {
// const channel = ably.channels.get(userId);
const interactionId = uuid()

// Retrieve the conversation log and save the user's prompt
const conversationLog = new ConversationLog(userId)
const conversationHistory = await conversationLog.getConversation({ limit: 50 })
await conversationLog.addEntry({ entry: prompt, speaker: "user" })

// Build an LLM chain that will improve the user prompt
const inquiryChain = new LLMChain({
  llm, prompt: new PromptTemplate({
    template: templates.inquiryTemplate,
    inputVariables: ["userPrompt", "conversationHistory"],
  })
});
const inquiryChainResult = await inquiryChain.call({ userPrompt: prompt, conversationHistory })
const inquiry = inquiryChainResult.text

// Embed the user's intent and query the Pinecone index
const embedder = new OpenAIEmbeddings();

const embeddings = await embedder.embedQuery(inquiry);

socketIO.emit(userId, {
  data: {
    event: "status",
    message: "Finding matches...",
  }
})

console.log(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>embedding")

const matches = await getMatchesFromEmbeddings(embeddings,3,"langchain");
console.log(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>below")

const urls = matches && Array.from(new Set(matches.map(match => {
  // const metadata = match.metadata as Metadata
  // console.log("metadata ==> ", metadata);
  // const { id } = metadata
  return match.id
})))

const docs = matches && Array.from(
  matches.reduce((map, match) => {
    const metadata = match.metadata as Metadata;
    const { text } = metadata;
    if (!map.has(match.id)) {
      map.set(match.id, text);
    }
    return map;
  }, new Map())
).map(([_, text]) => text);


const promptTemplate = new PromptTemplate({
  template: templates.qaTemplate4,
  inputVariables: ["summaries", "question", "conversationHistory"],
});


const chat = new ChatOpenAI({
  streaming: true,
  verbose: true,
  modelName: "gpt-3.5-turbo-0301",
  callbackManager: CallbackManager.fromHandlers({
    async handleLLMNewToken(token) {
      socketIO.emit(userId, {
        data: {
          event: "response",
          token: token,
          interactionId
        }
      })
    },
    async handleLLMEnd(result) {

      socketIO.emit(userId, {
        data: {
          event: "responseEnd",
          token: "END",
          interactionId
        }
      });
    }
  }),
});

const chain = new LLMChain({
  prompt: promptTemplate,
  llm: chat,
});

const allDocs = docs.join("\n")
if (allDocs.length > 4000) {
  socketIO.emit(userId, {
    data: {
      event: "status",
      message: `Just a second, forming final answer...`,
    }
  })
}

// const summary = allDocs.length > 4000 ? await summarizeLongDocument({ document: allDocs, inquiry }) : allDocs
const summary = allDocs;

await chain.call({
  summaries: summary,
  question: prompt,
  conversationHistory,
  urls: urls
});

} catch (error) {
//@ts-ignore
console.error(error)
}
}

export default async function handler(
req: NextApiRequest,
res: NextApiResponseServerIO
) {
const { body } = req;
const { prompt, userId } = body;
const socketIO = res.socket?.server?.io;
await handleRequest({ prompt, userId, socketIO })
res.status(200).json({ “message”: “started” })
}