This is a tutorial presented at All Things Open 2023 to highligh how easy it is to build a recommendation engine use OpenAI + Postgres + Ruby on Rails.
Requirements are:
- Ruby 3.2.1
- Rails 7.1.1
- Postgres 16 w/ Vector Extension
If you don't have a Ruby installation, checkout rbenv.
If you don't have a Postgres installation, checkout Hombrew and run brew install postgresql@16.
To install the vector extension, you can clone the pgvector repo and run make && make install. Then, you'll have access to the vector extension.
Once you have the requirements, run the following:
git clone <repo>
cd <repo>
Initialize Postgres:
initdb -D data
Run Postgres + Propshaft:
./bin/dev
Start Rails server in another terminal:
rails s
Open the URL printed from the above command in a browser.