Constitution GPT

AI chat over the US Constitution 📜 💬 🇺🇸

Table of Contents

📝 About
💻 How to build
• Initial setup
• Embeddings backend
• Chat frontend
• Run app
🚀 Next steps
🔧 Tools used
👤 Contact

📝About

Chat with the US Constitution. Combines pgvector embeddings (Supabase), OpenAI, and NextJs to provide frontend UI chat interface.

💻How to Build

Initial setup

Clone and install dependencies:

git clone https://github.com/vdutts7/constitutionGPT
cd constitutionGPT
npm i

Copy .env.example and rename to .env in root directory. Fill out API keys:

SUPABASE_ANON_KEY=""
NEXT_PUBLIC_SUPABASE_URL=""
OPENAI_API_KEY=""

#optional- leave blank if unused. DO NOT DELETE
OPENAI_PROXY=""
SPLASH_URL=""

Get API keys:

• OpenAI
• Supabase

IMPORTANT: Verify that .gitignore contains .env in it.

Embeddings backend

Create a Supabase account and project at Supabase:

• Run this query Supabase's SQL editor:

  create extension vector;
  

• Create a table to store embeddings with this query:

  create table documents (
    id bigserial primary key,
    content text,
    url text,
    embedding vector (1536)
  );

• Add similarity search function with another query:

  create or replace function match_documents (
    query_embedding vector(1536),
    similarity_threshold float,
    match_count int
  )
  returns table (
    id bigint,
    content text,
    url text,
    similarity float
  )
  language plpgsql
  as $$
  begin
    return query
    select
      documents.id,
      documents.content,
      documents.url,
      1 - (documents.embedding <=> query_embedding) as similarity
    from documents
    where 1 - (documents.embedding <=> query_embedding) > similarity_threshold
    order by documents.embedding <=> query_embedding
    limit match_count;
  end;
  $$;

Chat frontend

• NextJs styled with Tailwind CSS
• Chats streamed using OpenAIStream. See utils/OpenAIStream.ts for details

🚀Next Steps

Use this project as a foundation and build on top of this!

💡 Ideas 💡

• Entire history of SCOTUS cases?
• Specific data for each US president + administration?
• Patriot Act? Chips Act?
• CIA, DEA, FDA, CDC, etc. + all the confusing docs on the .gov websites

🔧Tools Used

👤Contact