Code for CustomQAChain

[anujcb]

Hi Mayooear, can you please share the function CustomQAChain. Saw in the demo video a call to the CustomQAChain, i tried to send the vecotorstore with multiple namespaces to the makeChain and it dosnet seem to like it (code below)

const sanitizedQuestion = question.trim().replaceAll('\n', ' ');

console.log('sanitizedQuestion', sanitizedQuestion);
const yearsArray = await extractYearsFromQuery(sanitizedQuestion);
console.log('yearsArray', yearsArray);

const namespaces =
yearsArray
?.map((year) => NAMESPACE_YEARS[year])
.filter((namespace) => namespace !== undefined) ?? [];
console.log('namespaces', namespaces);

try {
const index = pinecone.Index(PINECONE_INDEX_NAME);

/* create vectorstore*/
console.log('getting from vector store');
const vectorStore = await PineconeStore.fromExistingIndex(
  new OpenAIEmbeddings({}),
  {
    pineconeIndex: index,
    textKey: 'text',
    namespace: namespaces, //namespace comes from your config folder
  },
);
console.log('creating chain');
//create chain
const chain = makeChain(vectorStore);

[anujcb]

Hi Mayooear, in the video, did you extend the ConversationalRetrievalQAChain to create CustomQAChain?