A lightweight onboarding platform with an AI assistant that answers questions from uploaded company documentation and provides role-specific onboarding checklists.

Tech stack:

• Backend: .NET 8, ASP.NET Core, Entity Framework Core, PostgreSQL (supports Supabase)
• Frontend: React + TypeScript, Vite, Tailwind CSS
• AI: Uses Gemini via GEMINI_API_KEY and TF-IDF embeddings for retrieval

• Upload onboarding documents (PDF / text) and split into searchable chunks
• Vector search using TF-IDF + in-memory vector store
• AI Chat Assistant (/api/chat/OnboardingAssistant) that answers questions based on uploaded docs
• Admin area: upload and manage docs, build checklists

1. Backend

cd BackEnd\OnboardingChat.Api
# (optional) install EF tools
dotnet tool install --global dotnet-ef

# apply migrations (creates tables)
dotnet ef database update

# run the API (defaults to http://localhost:5079)
dotnet run

See the backend docs for more detail: BackEnd/OnboardingChat.Api/QUICK_START.md, BackEnd/OnboardingChat.Api/DATABASE_SETUP.md, and BackEnd/OnboardingChat.Api/SUPABASE_SETUP.md.

2. Frontend

cd FrontEnd
npm install
npm run dev
# open http://localhost:5173 in your browser

The frontend expects the API at http://localhost:5079 by default (see FrontEnd/src/components/chatbot/ChatbotPanel.tsx).

Create a .env in BackEnd/OnboardingChat.Api/ with at least:

DATABASE_CONNECTION_STRING=Host=localhost;Port=5432;Database=onboarding_chat;Username=postgres;Password=YOUR_PASSWORD
GEMINI_API_KEY=your_gemini_api_key

Important: do not commit secrets. Use environment variables in production and follow the Supabase guide if you use a managed DB.

• Swagger UI: http://localhost:5079/swagger
• Document upload endpoint: POST /api/documents
• Chat endpoint: POST /api/chat/OnboardingAssistant

• Migrations: dotnet ef migrations add <Name> and dotnet ef database update
• Application calls EnsureCreated() by default; consider switching to Database.Migrate() for production (see QUICK_START.md).

• Open issues and PRs are welcome. Please include a clear description and reproduction steps.

No license file is included. Add a LICENSE if you want to open-source this project (MIT / Apache-2.0 are common choices).

If you'd like, I can also:

• add a basic LICENSE file
• add env sample files (.env.example) and GitHub workflow for CI