Retrieving Source Documents

[LoGic142]

Is your feature request related to a problem? Please describe.
I wanted to know if we can get the source documents that the retriever brought back when used in a RAG pipeline.

Describe the solution you'd like
When I build a pipeline that ends with the OpenAIGenerator, I want to see the source documents retrieved by the retriever and used by the Generator to generate the response. If this exists in haystack, can someone please point me in the right direction?

[anakin87]

(transformed into a discussion)

Hey!
I think the AnswerBuilder might be relevant for you.

[LoGic142]

I will check it out and get back to you!
Thanks for such a prompt reply, love the work that you guys are doing!

[LoGic142]

Hey!
This was precisely what I was looking for!

I just wanted to clarify: after converting the response returned by AnswerBuilder, does the 'data' key in the 'init_parameters' field contain the LLM response?

Also, can this feature of the Answer Builder be mentioned in some tutorial(or a new tutorial), if it has not been already?

Sorry for opening this discussion as an issue earlier.

[anakin87]

• I would say yes
• I think the AnswerBuilder is not present in tutorials. But yours seems a good idea (FYI @bilgeyucel)

(No need to apologize. I converted this into a discussion to be more orderly, but that's okay 👍)