Extend/Change default behaviour in rest api

[heyt0pe]

I noticed that in the release notes for v1.7.0, a bunch of things were released like adding page numbers, support for Open AI GPT-3, etc. and I would like to try them out to compare results from various models, show page numbers in the result, etc.

I stumbled on Haystack sometime last week and I am currently using the Streamlit UI I set up by cloning the repo, then running docker-compose pull and up as directed by the UI tutorial, so I am still pretty new to the whole thing and would like to ask how I can extend the default behavior of the rest API since that's where the UI queries and gets its results from.

From the release notes, you can add these new features like in the case for page numbers by importing its modules and adding the required nodes to the pipeline (I think😅), but the problem I'm facing currently is I do not know what file I'm supposed to be editing and making these changes to. My best bet currently is the search.py file, but I cannot see any of the changes I've made and I do not know if I am doing it right or even making changes to the right file.

Thanks

[masci]

Hi @heyt0pe

the rest_api adds a lot of complexity on top of a regular Haystack pipeline, and the streamlit app adds some on top of rest_api... Iif you're new to the framework I would suggest to use a notebook (even in Colab) to quickly try out new features, change the models, inspect data, etc... and only at that point going back to a "live search app".

If you're determined to keep exploring the rest_api this discussion #3206 contains some pointers from where to start.

Let me know if this helps!